Headsets and headphones / Compare

JBL Quantum 520X Wireless vs Logitech G PRO X3 LIGHTSPEED

A

Product A: JBL

Quantum 520X Wireless

65 of 161 known

Change JBL Quantum 520X Wireless

Compare the Logitech G PRO X3 LIGHTSPEED with

Search headsets and headphones

B

Product B: Logitech

G PRO X3 LIGHTSPEED

71 of 161 known

Change Logitech G PRO X3 LIGHTSPEED

Compare the JBL Quantum 520X Wireless with

Search headsets and headphones

All 161 fields

Every value links to where we found it.

Only differences

AJBL Quantum 520X Wireless

BLogitech G PRO X3 LIGHTSPEED

General

5 of 8 differ

Series

Quantum1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026

PRO Series1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

JBLQTUM520XBLKAM2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026Retailer SKU JBLQTUM520XBLKAM. The page lists no separate model number.

981-0017381Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Exact US Black 981-001738 standard bundle. Public variant data separately maps White to 981-001746 and Magenta to 981-001754. R735 is a support reference, not a promoted hardware identifier. No PRO X2 fields or measurements transferred.

GTIN / EAN

05003642546910Retailer pageworldwidestereo.com/products/jbl-quantum-520-x-wireless-over-ear-gaming-headset-blackRead 21 October 2026UPC 050036425469 on the JBL Quantum 520X Wireless listing. This is the US code.

09785521315014Retailer pageabt.com/Logitech-PRO-X3-LIGHTSPEED-Wireless-Gaming-Headset-in-Black-981001738/p/249383.htmlRead 8 October 2026Exact US Black part 981-001738 is explicitly paired with UPC 097855213150. Current dealer availability does not override maker ready-to-ship status. Unscoped shipping weight and prior-model retailer masses omitted.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

26 August 20261Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026JBL Europe press release dated 26 August 2026, Cologne.

23 September 20263Press releasenews.logitech.com/press-releases/news-details/2026/From-New-PRO-Gear-to-the-Iconic-Yeti-2-Mic---Logitech-G-Unveils-Fifteen-New-Products-at-Logitech-G-PLAY-2026/default.aspxRead 8 October 2026Maker launch announcement dated September 23, 2026. Announcement is distinct from first retail availability.

Status

Available1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026Available to buy in Europe from 26 August 2026. US retailers list it as a pre-order for 18 October 2026.

Available1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Current exact US maker offer is in stock and ready to ship on access date. Current USD 249.99 is not used alone as launch-price evidence.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Logitech G PRO X 2 LIGHTSPEED5Press articlenotebookcheck.net/Logitech-G-Pro-X-3-Lightspeed-gaming-headset-debuts-with-a-revamped-microphone.1405798.0.htmlRead 8 October 2026Exact new headset explicitly follows PRO X2 LIGHTSPEED. Relationship only. No prior headset specifications transferred.

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$129.954Press articlethe-gadgeteer.com/2026/08/27/jbl-quantum-520-vs-520x-vs-120-price-connection-xboxRead 14 October 2026JBL US launch information: 129.95 USD for the 520X with retail availability scheduled for 18 October 2026. US price before sales tax.

$249.994Press articlebasic-tutorials.com/news/logitech-g-play-2026-an-overview-of-15-new-products-from-the-pro-x3-superstrike-to-the-yeti-2Read 8 October 2026Contemporaneous exact-model launch table labels USD 249.99 MSRP. Notebookcheck launch-day manufacturer-attributed preorder pricing independently corroborates. Current/sale price is not substituted. EUR VAT scope is unproved.5Press articlenotebookcheck.net/Logitech-G-Pro-X-3-Lightspeed-gaming-headset-debuts-with-a-revamped-microphone.1405798.0.htmlRead 8 October 2026

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

€99.991Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026520X priced at 99.99 EUR on the European launch. Price as published in Europe, taxes included.

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US, EU10Retailer pageworldwidestereo.com/products/jbl-quantum-520-x-wireless-over-ear-gaming-headset-blackRead 21 October 2026US retailer listing at 129.95 USD. The European press release lists the model on jbl.com in Europe.

US1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

ColoursiThe maker's own colour names

Black5Press articletrustedreviews.com/news/jbl-unveils-quantum-850-and-new-mid-range-headsets-at-gamescomRead 14 October 2026Black is the only colour for the Quantum 520X.

Black1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Segment

Gaming1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026

Gaming1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Design

2 of 7 differ

Form factor

Over-ear2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026Listing features: over-ear.

Over-ear1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Ear cup enclosureiClosed, open or semi-open acoustic enclosure. This does not describe how the headset folds.

Closed3Spec databasegeektopia.es/es/product/jbl/quantum-520x-wirelessRead 14 October 2026Type: closed circumaural.

Closed7Spec databaseheadphonedatabase.comRead 8 October 2026

Wearing style

Headband1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026Press release: the range has a silicone headband. The headset is worn over the head.

Headband1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

FoldingiFlat means the ear cups rotate flat. Inward means the ear cups fold toward the headband.

Not available

Not available

Swivelling ear cupsiEar cups can rotate relative to the headband. Tilting alone does not count.

Not available

Yes1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

RGB lighting

Not available

No6Press articlecomputerbase.de/news/audio-video-foto/logitech-pro-x3-lightspeed-kabelloses-e-sport-headset-mit-70-stunden-akkulaufzeit.99433Read 8 October 2026Exact PRO X3 launch specification table explicitly says no RGB. Connection/battery status LED is distinct. EMEA 362 g and template mode frequency/surround cells are not imported.

Lighting zonesiNumber of independently controllable lighting areas across both ear cups.

Not available

Not available

Drivers and sound

8 of 20 differ

Driver type

Dynamic1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026Press release: 50 mm carbon dynamic drivers on the Quantum 650, 520, 520X and 120.

Dynamic7Spec databaseheadphonedatabase.comRead 8 October 2026Public GadgetryTech database exact Logitech G PRO X3 LIGHTSPEED row classifies Dynamic and Closed Back. Numeric 350 g, clamp force and pad dimensions lack exact color/pad/mic/method scope and are omitted. Measurement chart normal access returned Forbidden, no hidden data retrieval used.

Driver sizeiDiameter of the largest sound driver. Do not use the microphone capsule diameter.

50mm1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026Press release: 50 mm carbon dynamic drivers on the Quantum 650, 520, 520X and 120.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Driver size: 50 mm / 1.97 in dynamic driver.

50mm1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Drivers per sideiNumber of sound-producing transducers in one side, excluding microphones.

Not available

18Reviewstatic.bhphotovideo.com/explora/computers/news/logitech-g-announces-the-yeti-2-mic-and-more-gaming-gearRead 8 October 2026September 23 original B&H hands-on article explicitly gives dual 50 mm PRO-G Graphene drivers for the exact PRO X3 headset. One transducer per side in this two-ear design. Ordinary web reader opened article. Later CLI request returned 403 and was not retried or bypassed.

Diaphragm material

Not available

Graphene1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Magnet

Not available

Not available

Frequency response (wired or passive)iPublished acoustic range for wired listening, or the maker’s single range when no mode is distinguished. Power state and test standard belong in the source note.

Min20 HzMax40 kHz2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026JBL specifications relayed by the retailer: dynamic frequency response range 20 Hz to 40 kHz. The maker spec sheet and quick start guide label the same figure as USB audio.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Audio Specifications: Frequency response 20 Hz - 40 kHz (USB Audio).

Min20 HzMax20 kHz1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Single published acoustic range, without powered/passive distinction, stimulus or standard. No Bluetooth transmission band inferred.

Wireless audio transmission bandiFrequency range of audio transmitted over the wireless connection, not the acoustic response of the driver. Codec, sampling rate and bitrate conditions belong in the source note. When the maker gives a range per codec, the widest range is stored and its codec goes in the source note.

Not available

Not available

Impedance (passive when specified)iUse the headset-off value for a passive analog connection when the maker publishes both powered and passive values. Note the power state and test frequency.

32Ω2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026JBL specifications relayed by the retailer: 32 ohm.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Audio Specifications: Impedance 32 ohm.

38Ω1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Unmeasured maker claim. Power state and test frequency are unstated.

Sensitivity (passive when specified)iUse the headset-off figure when both powered and passive values exist. The power or voltage reference, test distance and frequency belong in the source note.

90dB3Spec databasegeektopia.es/es/product/jbl/quantum-520x-wirelessRead 14 October 2026Geektopia lists 90 dB for the 520X. The maker spec sheet and quick start guide state 90 dB SPL at 1 kHz.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Audio Specifications: Sensitivity 90 dB SPL at 1 kHz. The spec sheet has no power reference. The quick start guide adds 1 mW.

87.8dB1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Maker explicitly gives 87.8 dB at 1 mW/1 cm. Test frequency, acoustic fixture and power state are unpublished. The 1 cm condition is retained, not treated as a standardized ear-coupler result.

Sensitivity referenceiPublished power or voltage reference for sensitivity. Do not assume 1 mW when the source gives only a dB value.

Per 1 mW6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026The spec sheet gives no reference. The quick start guide states 90 dB SPL at 1 kHz / 1 mW.7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026Tech spec: Sensitivity 90 dB SPL @1 kHz / 1 mW.

Per 1 mW1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Published 1 mW reference. No conversion to a voltage reference or removal of the stated 1 cm distance.

THD (claimed)iPublished distortion figure or numerical upper bound. The source note states any less-than sign and test level.

Not available

Not available

Max input power

30mW3Spec databasegeektopia.es/es/product/jbl/quantum-520x-wirelessRead 14 October 2026Maximum input power 30 mW.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Audio Specifications: Max input power 30 mW.

Not available

Max digital audio sample rateiHighest supported digital audio sample rate over a USB cable or wireless dongle. This is not the microphone rate or acoustic frequency response.

Not available

Not available

Max digital audio bit depthiHighest published digital playback bit depth over a USB cable or wireless dongle.

Not available

Not available

DAC

Not available

Not available

Personalised soundiA manufacturer-supported hearing test or ear scan creates a device sound profile tailored to the listener. Generic equalizer adjustments do not count.

Not available

Not available

Onboard EQiCustom playback EQ profiles stored in the headset and applied without the host app running. Note supported active connections. Receiver-only or software-only EQ does not count.

Not available

Yes1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Exact PRO X3 feature text explicitly says EQ customization and save settings to onboard memory. Supports custom playback EQ persistence. Maximum saved count, individual active modes and persistence of every host Blue VO!CE filter are unstated.

Custom EQ bandsiNumber of bands in the custom playback equalizer. Microphone EQ bands are excluded.

Not available

101Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Ten-band parametric playback EQ in G HUB. Separate microphone sampling and voice filtering do not determine playback resolution.

EQ presets

Not available

Not available

Volume limit

Not available

Not available

Spatial audio

1 of 3 differ

Spatial audio supportiNamed headset or host spatial-audio systems that the maker or reviewer explicitly supports. A platform feature may require compatible hardware, software or a separate licence.

JBL Quantum Spatial Sound1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026JBL Quantum Spatial Sound, powered by JBL QuantumENGINE. All four headsets in the range have it.

DTS Headphone:X1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Exact maker software compatibility names DTS Headphone:X. Version 2.0 and an included paid licence are not established. Host support is separate from analog listening.

Spatial audio licence includediA paid spatial-audio licence is bundled or embedded. Compatibility with a separately purchased app does not count.

Not available

Not available

Head tracking

Not available

Not available

Noise cancelling

0 of 10 differ

Active noise cancelling

No7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026The ten labelled controls and LEDs and the feature list name no active noise cancelling. The only noise cancelling named is the boom microphone noise reduction.

No9Reviewtheshortcut.com/p/logitech-g-pro-x3-lightspeed-reviewRead 8 October 2026September 24 actual Black sample review explicitly says active noise cancellation is absent. No instrumented acoustic numbers or microphone recording analysis imported.

ANC typeiFeedforward uses outside microphones. Feedback uses inside microphones. Hybrid uses both. Voice-call noise filtering is separate.

Not available

Not available

ANC microphonesiTotal microphones used for active playback noise cancellation across both sides. Do not substitute the total physical or voice microphone count.

Not available

Not available

Adaptive ANCiNoise cancellation automatically changes with the environment or fit. Manually choosing a level does not count.

Not available

Not available

ANC levelsiNumber of adjustable cancellation strength steps. Off and transparency modes are excluded.

Not available

Not available

ANC attenuation (claimed)

Not available

Not available

Transparency mode

Not available

Not available

Adjustable transparency

Not available

Not available

Conversation detectioniAudio pauses or lowers automatically when the wearer speaks. Voice assistant activation does not count.

Not available

Not available

Wind noise reduction

Not available

Not available

Measured

None of 21 known

Frequency response notesiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Bass amountiReviewer’s bass deviation from its stated target. Positive is more bass. Target and test method belong in the source note.

Not available

Not available

Treble amountiReviewer’s treble deviation from its stated target. Positive is more treble. Target and test method belong in the source note.

Not available

Not available

Deviation from targetiReviewer’s full-range error from its target curve. Do not substitute a regional bass or treble error.

Not available

Not available

Consistency between fittingsiReviewer’s standard deviation across repeated fittings. Test rig and fitting procedure belong in the source note.

Not available

Not available

Harmonic distortioniIndependently measured harmonic distortion, with test level and method in the source note.

Not available

Not available

Sound leakageiIndependently measured leakage at 30 cm. Playback level and method belong in the source note.

Not available

Not available

Measured noise isolationiIndependently measured attenuation. Positive values mean more noise reduction. ANC state, rig and frequency bands belong in the source note.

Not available

Not available

Noise isolation (measured, best)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Passive isolation (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic quality notesiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic low-frequency extensioniMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic high-frequency extensioniMeasured by a reviewer, not claimed by the maker

Not available

Not available

Mic speech-to-noise ratioiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Measured latencyiEnd-to-end latency measured by a reviewer for a specific connection, platform and codec. Firmware, method and operating mode belong in the source note.

Not available

Not available

Bluetooth latency (measured, worst)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

2.4 GHz latency (measured, worst)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Measured battery lifeiReviewer’s continuous playback test. State the connection, ANC and lighting where known. Unknown settings stay omitted and are described in the source note.

Not available

Not available

Battery life (measured, max)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Clamping forceiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Weight (measured)iIndependently weighed headset. A review that repeats the maker’s number does not qualify. Cable and microphone inclusion belong in the source note.

Not available

Not available

Microphone

8 of 16 differ

MicrophoneiMain microphone used for speech. Secondary internal microphones may be described in the source note.

Detachable boom1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026Press release: detachable 6 mm cardioid boom mic on all headsets in the range.

Detachable boom1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Microphone element

Not available

Not available

Microphone pickup patterniUse the maker’s exact named pattern. Unidirectional does not establish whether the capsule is cardioid, supercardioid or hypercardioid.

Cardioid1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026Press release: detachable 6 mm cardioid boom mic on all headsets in the range.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Microphone pickup pattern: Cardioid. The text calls it a 6 mm unidirectional mic with cardioid pattern.

Omnidirectional1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Voice microphonesiTotal microphones used for voice pickup or beamforming across both sides. ANC-only microphones are excluded.

17Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026The guide shows one detachable boom microphone and an audio jack for it. No other voice microphone is listed.

Not available

Total microphonesiEvery physical microphone across the headset, including call, ANC and calibration microphones. Shared microphones count once. Excludes microphones in charging cases or receivers, and vibration sensors. Use an explicitly published physical total, never a sum of overlapping role counts.

Not available

Not available

Mic frequency responseiAcoustic microphone response, not its digital sampling rate. Connection-specific ranges belong in the source note.

Min100Max8,000Hz3Spec databasegeektopia.es/es/product/jbl/quantum-520x-wirelessRead 14 October 2026Microphone frequencies 100 Hz to 8000 Hz.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Microphone frequency response 100 Hz - 8 kHz.

Min75 HzMax20 kHz1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Mic sensitivityiPublished microphone sensitivity. Reference such as dBV/Pa or dBFS, frequency and distance belong in the source note.

-40dB3Spec databasegeektopia.es/es/product/jbl/quantum-520x-wirelessRead 14 October 2026Listed as -40 dB with a tolerance of 3 dB. The maker quick start guide states -40 dBV/Pa at 1 kHz.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Microphone sensitivity -40 dBV/Pa at 1 kHz.

Not available

Mic signal-to-noiseiPublished microphone signal-to-noise ratio. Minimum or typical conditions belong in the source note.

Not available

Not available

Mic sample rateiExplicitly published digital microphone capture or speech sampling rate. State the audio route in the source note, or say it is unpublished. Internal capture does not prove the effective rate on every connection. Acoustic bandwidth, playback rate and generic microphone-chip capability do not qualify.

Not available

48kHz1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Maker explicitly specifies 48 kHz/16-bit digital microphone capture. The transport is unpublished. This does not establish the Bluetooth speech rate, every connection mode, playback resolution or acoustic bandwidth.

Mic noise reductioniProcessing that removes noise from transmitted speech. Playback ANC and a directional microphone alone do not count.

DSP6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Features: the mic does not hear the keyboard thanks to the noise reduction technology through JBL QuantumENGINE, which also reduces keyboard noise and sets mic noise reduction. The processing is software on the connected device.7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026Features: noise reduction technology through JBL QuantumENGINE. Whether it is DSP or AI is not stated.

DSP1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Exact model integrates BLUE VO!CE through G HUB. Maker technology page separately states real-time noise-reduction filters. Host-software-dependent DSP, not playback ANC or guaranteed bare Bluetooth filtering.13Maker product pagelogitechg.com/en-us/discover/technology/blue-voiceRead 8 October 2026Maker technology description explicitly defines BLUE VO!CE host G HUB real-time noise reduction and voice filters. Exact headset page names integration. No on-headset AI microphone chip or universal mode processing inferred.

Flip to mute

Not available

Not available

Mute button

Yes7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026Overview 02: Microphone mute/unmute. The drawing shows a button on the ear cup.

Yes2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Printed page 3 shows physical mic-mute toggle. Red mechanical marking indicates mute. It is not an electronic LED mute indicator.

Mute indicatoriPublished indication of microphone mute. mechanical_marker is a visible physical marker showing the microphone's mute-switch position. LED options require an electronic light. The in-line controller option is for a mute light on a cable remote.

Not available

Physical mute marker2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Original guide printed page 3 explicitly shows red exposed when the physical microphone switch is muted, with red hidden when active. Stored physical marker, not an LED or electronic voice prompt.

Sidetone

Not available

Yes2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026

Adjustable sidetone

Not available

Yes2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Printed page 6 explicitly permits audio EQ and sidetone adjustments through G HUB on PC/Mac and Logitech G Mobile. Individual mode and console processing limits are unstated.

Foam microphone windscreeniA foam cover for the voice microphone. An internal metal mesh pop filter does not count.

Yes2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026Windshield foam for the boom microphone is in the box.

Yes2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026

Connectivity

10 of 20 differ

Audio connectionsiConnections that carry playback audio. Charging or firmware USB alone does not count as USB audio.

USB, 2.4 GHz, Bluetooth4Press articlethe-gadgeteer.com/2026/08/27/jbl-quantum-520-vs-520x-vs-120-price-connection-xboxRead 14 October 2026JBL US specifications: 2.4 GHz wireless dongle, Bluetooth 5.4 and low-latency USB-C wired audio.7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026Power on and connect: 2.4 GHz wireless. Bluetooth section. USB audio section for wired playback.

Analog, 2.4 GHz, Bluetooth1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Maker lists LIGHTSPEED via USB-A receiver, Bluetooth and 3.5 mm AUX. Original guide supports headset-off direct analog and analog-source MUX through receiver while in LIGHTSPEED mode. MUX is distinct from simultaneous Bluetooth/RF. No LC3plus claim from G522/A20 X or NxLOGI mouse chip is transferred.2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026

Analog source plugsiAnalog plug(s) supplied for the source device, including adapters. The headset-side jack is listed separately.

Not available

3.5 mm TRRS15Maker product pageresource.logitechg.com/d_transparent.gif/content/dam/gaming/en/products/pro-x3-lightspeed-pdp/gallery/pro-x3-lightspeed-headset-in-the-box-black-gallery-5.pngRead 8 October 2026Exact maker Black package photo visually shows three insulating rings on supplied source plug, hence four TRRS contacts. This does not prove analog microphone operation on any particular console. Image association was read from current exact Black gallery.

Cable connector on headsetiConnection used by the playback cable at the headset. A fixed cable is not replaceable through a headset jack.

USB-C4Press articlethe-gadgeteer.com/2026/08/27/jbl-quantum-520-vs-520x-vs-120-price-connection-xboxRead 14 October 2026Wired audio runs over USB-C. The headset-side port type follows from the USB-C cable. Not seen on a maker diagram for the 520X.7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026The headset has a USB-C port and the USB-C cable carries USB audio. The cable is not fixed. The dongle and boom microphone use their own connections.

3.5 mm2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026

Longest included cableiLength of the longest supplied cable, including charging and dongle cables. Individual cable lengths are listed in Cables included.

1.5m3Spec databasegeektopia.es/es/product/jbl/quantum-520x-wirelessRead 14 October 2026Cable length 1.5 m. Taken as the length of the USB-C cable in the box.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Cable length 1.5 m.

Not available

Headset USB plug or portiUSB plug or port on the headset or its included wired audio adapter. A charging-only USB port can appear here.

USB-C4Press articlethe-gadgeteer.com/2026/08/27/jbl-quantum-520-vs-520x-vs-120-price-connection-xboxRead 14 October 2026USB-C wired audio. The box holds a USB-C cable.7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026Overview 04: USB-C port on the headset. The box holds a USB-C cable.

USB-C2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026

Audio over USB-C cableiPlayback through a USB-C cable or included wired USB-C audio adapter. A charging-only USB-C port does not count.

Yes4Press articlethe-gadgeteer.com/2026/08/27/jbl-quantum-520-vs-520x-vs-120-price-connection-xboxRead 14 October 2026JBL US specifications: low-latency USB-C wired audio.7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026USB audio section: playback over the USB-C cable on PC, Mac, Nintendo Switch, Mobile and PlayStation 5.

No2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Printed page 3 identifies USB-C Charging Port. Complete guide audio paths are RF, Bluetooth and 3.5 mm. Maker input list corroborates charge-only cable function. USB receiver audio is RF, not USB-C cable playback.

Passive wired listeningiAnalog playback works with the headset powered off or its battery empty. An active analog converter that needs headset power does not count.

Not available

Yes2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Printed pages 9-10 explicitly require power OFF for direct 3.5 mm playback. Dedicated AUX and microphone sockets are separate.

Wireless receiveriDedicated wireless audio receiver or dongle. A wired USB sound card does not count.

Included2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026USB wireless dongle in the box.7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026What is in the box: USB wireless dongle.

Included1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Wireless receiver connectoriPhysical USB connector on the receiver. Supplied extension cables and adapters are explained in the source note. Both means two native connector types.

USB-C6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026The box holds a USB wireless dongle and a USB-C to USB-A converter. The quick start guide drawing shows the dongle with a USB-C plug and the converter with a USB-A plug. Stored as USB-C because the converter adapts it to USB-A.7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026What is in the box drawing: USB wireless dongle with USB-C plug and a USB-C to USB-A converter.

USB-A1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 20262Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026

Wireless range (claimed)iMaker’s advertised wireless range. Connection and indoor or outdoor conditions belong in the source note. Measured distance is not stored here.

Not available

30m1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Up to 30 m maker claim. Protocol, environmental conditions and test procedure are unstated. Not an independently measured distance.

Bluetooth

5.42Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026JBL US specifications: V5.4, A2DP profile. German-language press for the same headset says Bluetooth 5.3. The maker spec sheet and quick start guide both say V5.4, which is used.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Bluetooth version V5.4. Profiles A2DP V1.4 and HFP V1.9. No Bluetooth codec is named.

5.31Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Bluetooth codecsiNamed Bluetooth audio codecs supported by this exact model. Host, firmware and operating-mode restrictions belong in the source note.

Not available

Not available

LE AudioiLE Audio playback support. Bluetooth Low Energy for app control alone does not count.

Not available

Not available

AuracastiAuracast broadcast audio support. Required phone, firmware and app conditions belong in the source note.

Not available

Not available

Bluetooth multipointiCan remain connected to multiple Bluetooth source devices at once. Mixing Bluetooth with a proprietary dongle is a separate field. A maker's dual connection to two Bluetooth devices at once counts.

Not available

Not available

Multipoint devicesiNumber of Bluetooth source devices connected at once, not the number remembered for later pairing.

Not available

Not available

Paired devices remembered

Not available

Not available

Mixes 2.4 GHz and Bluetooth audioiPlays both wireless audio streams at the same time. Automatic switching or Bluetooth standby does not count.

Not available

No2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Printed page 8 explicitly says either LIGHTSPEED or Bluetooth. Short button press switches modes. Pages 11-12 separately mix analog source at receiver with RF audio, with fixed AUX volume and adjustable RF-stream wheel volume.

Fast pairing

Not available

Not available

Base station

Not available

Not available

Latency

None of 2 known

Low latency modeiA selectable mode intended to reduce audio delay. A low-latency connection without a distinct mode does not count.

Not available

Not available

Claimed latencyiMaker’s claimed delay for the stated connection and mode. Minimum claims and host restrictions belong in the source note.

Not available

Not available

Compatibility

3 of 3 differ

Compatible platformsiPlatforms with a documented audio path. This does not imply every connection or microphone function works. Platform editions must be checked individually.

Windows, macOS, iOS, Android, Xbox Series X|S, PS5, Nintendo Switch1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026FAQ: optimized for Xbox and compatible with other mobile and PC platforms and PlayStation. Source says Xbox and PlayStation without a console generation. Stored as Xbox Series and PS5.2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026JBL text: works with Windows, Mac, iPhone, iPad, Android, Xbox, PlayStation and Nintendo Switch. Stored as Windows, macOS, iOS, Android, Xbox Series, PS5 and Nintendo Switch. The source does not name console generations.

Windows, macOS, PS5, PS4, Nintendo Switch, Nintendo Switch 2, Android, iOS2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 20269Reviewtheshortcut.com/p/logitech-g-pro-x3-lightspeed-reviewRead 8 October 2026Exact Black sample review names Nintendo Switch 2, PS5 and broader device compatibility. Direct Switch 2 Bluetooth proof is separately from MaxiGeek.10Reviewmaxi-geek.com/con/logitech-pro-x3-lightspeed-reviewRead 8 October 202612Maker product pageplay.google.com/store/apps/detailsRead 8 October 2026

Connection per platformiOnly explicitly documented playback paths for the exact model. Microphone support is separate. Leave unknown microphone support omitted. An Xbox and a PlayStation edition of one headset can connect differently, so it is per variant.

AJBL Quantum 520X Wireless

Platform	Connection
Xbox Series X|S	2.4 GHz
Windows	2.4 GHz
Windows	USB
macOS	2.4 GHz
macOS	USB
Nintendo Switch	2.4 GHz
Nintendo Switch	USB
PS5	2.4 GHz
PS5	USB
Android	2.4 GHz
Android	USB
iOS	2.4 GHz
iOS	USB

Source7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026Power on and connect: 2.4 GHz for Xbox, PC, Mobile, Mac, Nintendo Switch and PlayStation. USB audio: PC, Mac, Nintendo Switch, Mobile and PlayStation 5. The guide names Xbox, PlayStation and Mobile without a generation or operating system. Stored as Xbox Series, PS5 and both Android and iOS, as the spec sheet names iPhone, iPad and Android. Bluetooth is not tied to a platform in the guide and has no rows. Microphone support per path is not stated.

BLogitech G PRO X3 LIGHTSPEED

Platform	Connection
Windows	2.4 GHz
macOS	2.4 GHz
PS5	2.4 GHz
PS4	2.4 GHz
Nintendo Switch	2.4 GHz
Nintendo Switch	Analog
Nintendo Switch 2	Bluetooth
iOS	Bluetooth
Android	Bluetooth

Source2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Printed pages 4-5 explicitly name PC, Mac, Switch, PS5 and PS4 LIGHTSPEED. Switch 2 Bluetooth and Switch analog were actually used by MaxiGeek. Mobile playback/app proof does not establish every outbound-microphone route, so microphone_works cells are omitted. Xbox, Linux, SteamOS and Quest routes are unproved.10Reviewmaxi-geek.com/con/logitech-pro-x3-lightspeed-reviewRead 8 October 2026October 7 actual use explicitly pairs Bluetooth with iPad and Switch 2, and uses supplied analog cable with original Switch. Sample color, regional SKU, firmware and outbound microphone behavior are unstated. These are model path capability observations, not color-specific measurements.

Official licence

Xbox certified1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026Press release: Quantum 520X is Xbox certified.

Not available

Battery and charging

7 of 13 differ

Battery capacityiRated capacity of one headset battery. Do not use case, receiver or total multi-battery capacity.

500mAh2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026Lithium-ion battery, 3.7 V and 500 mAh. Power supply 5 V and 1 A.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Battery type: Lithium-ion battery (3.7 V / 500 mAh).

Not available

Swappable batteryiBattery can be exchanged by the user as part of normal operation. Service or recycling disassembly does not count.

Not available

No2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Printed page 16 shows right-cup screw disassembly and Li-ion removal only in recycling instructions. It is not an exchangeable operating battery. Capacity, charging duration and supplied battery count are unproved.

Batteries includediNumber of headset batteries supplied, including the one already installed.

Not available

Not available

Claimed battery lifeiMaker’s maximum playback time per stated connection, codec, ANC, spatial audio and lighting settings. Name the spatial processing mode and other conditions in the source note. Unknown settings stay omitted.

AJBL Quantum 520X Wireless

Connection	Hours (h)
2.4 GHz	30
Bluetooth	37

Source2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026Music play time up to 30 h with only 2.4 GHz on and up to 37 h with only Bluetooth on. Talk time of 28 h and 30 h is not stored. ANC, codec and volume are not stated.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Music play time with only 2.4GHz on up to 30 h and with only BT on up to 37 h. Talk time 28 h and 30 h is not stored. ANC, codec and volume are not stated.

BLogitech G PRO X3 LIGHTSPEED

Hours (h)
70

Source1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Up to 70 hours. Transport, SPL, microphone use, EQ, codec, spatial processing and firmware are unstated. Unknown conditions remain omitted.

Battery life (claimed, max)

37h=CalculatedFrom Claimed battery life

70h=CalculatedFrom Claimed battery life

Battery life with ANC (claimed)

Not available

Not available

Battery life without ANC (claimed)

Not available

Not available

Charging port

USB-C4Press articlethe-gadgeteer.com/2026/08/27/jbl-quantum-520-vs-520x-vs-120-price-connection-xboxRead 14 October 2026USB-C cable in the box with a 5 V and 1 A power supply rating. A dedicated charging port is not named in the 520X sources.7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026Overview 04: USB-C port. The Charging section shows the USB-C cable and the charging LED. Power supply 5 V, 1 A.

USB-C2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026

Full charge timeiPublished time to fully charge a depleted headset. In-use charging can take longer.

180min2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026Published as less than 3 hours from empty. Stored as 180 minutes, the upper bound.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Charging time: < 3 hrs from empty. Stored as 180 minutes, the upper bound.

Not available

Quick charge timeiCharge duration in the maker’s quick-charge claim. Read together with Quick charge playback.

5min5Press articletrustedreviews.com/news/jbl-unveils-quantum-850-and-new-mid-range-headsets-at-gamescomRead 14 October 2026A five-minute charge gives one extra hour on the Quantum 650, 520 and 520X. Playback conditions are not stated.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Up to 37 hours of playtime: when it is flat, a 5-minute charge gains 1 extra hour of playtime. Playback conditions are not stated.

Not available

Quick charge playbackiPlayback gained from Quick charge time. Charger power, codec, volume and ANC conditions belong in the source note.

1h5Press articletrustedreviews.com/news/jbl-unveils-quantum-850-and-new-mid-range-headsets-at-gamescomRead 14 October 2026A five-minute charge gives one extra hour on the Quantum 650, 520 and 520X. Playback conditions are not stated.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Up to 37 hours of playtime: when it is flat, a 5-minute charge gains 1 extra hour of playtime. Playback conditions are not stated.

Not available

Use while charging

Not available

Not available

Charging dock or stand

Not available

Not available

Controls

3 of 6 differ

Controls

Not available

Buttons, Volume wheel, Slider2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026

Volume control

Not available

Wheel2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026

Game and chat mixiBalances separate game and chat audio streams. Mixing Bluetooth and dongle source volume alone does not count. Supported platforms belong in the source note.

Hardware dial7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026Overview 08: Game audio-chat balance dial. The French text calls it a game and chat audio mixing wheel.

Not available

Remappable controlsiOn-device button, touch or dial functions can be reassigned. Changing EQ alone does not count.

Not available

Not available

Wear detection

Not available

Not available

Voice assistant

Not available

Not available

Comfort and build

5 of 11 differ

Headband type

Not available

Padded1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Headband material

Silicone1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026Press release: the range now has a silicone headband and breathable fabric ear cushions. Stated for the range, with the Quantum 520X included in the same sentence.

Perforated leatherette1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Frame material

Not available

Not available

Ear cup material

Not available

Not available

Ear pad material

Breathable fabric1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026Press release: the range now has a silicone headband and breathable fabric ear cushions. Stated for the range, with the Quantum 520X included in the same sentence.

Memory foam with leatherette covers fitted. Alternative velour-covered memory foam pads supplied.1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Maker describes memory foam with leatherette or velour covers. Exact Black package image shows leatherette pads installed and a separate velour pair. Padding is distinct from cup-shell material.

Replaceable ear pads

Not available

Yes2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Printed page 15 removes left pad for pairing. Page 16 explicitly lists both pad types as spare parts. Attachment mechanism is unpublished.

Ear pad attachmentiHow a replacement ear pad attaches to the ear cup, not how the decorative outer cover attaches. A press-fit or snap-on pad counts as clip.

Not available

Not available

Ear pad openingiUsable opening inside an ear pad, excluding the outer cushion. Depth is the internal space between pad surface and driver cover.

Not available

Not available

Ear tips included

Not available

Not available

Dust and water rating

Not available

Not available

User-replaceable parts

Not available

Velour ear pads, Leatherette ear pads, USB charging cable, LIGHTSPEED receiver, 3.5 mm AUX cable, Carrying pouch2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Only six named spare-part categories on printed page 16. Detachable microphone is included but not silently added as an official spare listing.

Software

2 of 3 differ

Companion app

JBL QuantumENGINE2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026JBL text: JBL QuantumENGINE dashboard and free PC suite.

Logitech G HUB and Logitech G Mobile1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 20262Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 202610Reviewmaxi-geek.com/con/logitech-pro-x3-lightspeed-reviewRead 8 October 2026Reviewer could not make his unit appear in G HUB across cables, ports and updates. Version was unstated. Preserve practical conflict without negating primary documented app compatibility.11Maker product pageapps.apple.com/us/app/logitech-g/id1539611818Read 8 October 202612Maker product pageplay.google.com/store/apps/detailsRead 8 October 2026

App platforms

Windows11Maker product pagesupport.jbl.com/us/en/howto/jbl-quantum-engine-software-release-notes-us/000018780.htmlRead 21 October 2026QuantumENGINE software update release notes, version 2.8.6 of 2026-08-21: added support for Quantum 520X and Quantum 255. The page covers the Windows application. The macOS release notes name no 520X, so macOS is not stored. Mobile app support is not stated.

Windows, macOS, Android, iOS2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Guide names G HUB PC/Mac and mobile app. Current publisher app listings explicitly include PRO X3. DFU indicator and factory reset do not establish a public user-update process or installed firmware version.11Maker product pageapps.apple.com/us/app/logitech-g/id1539611818Read 8 October 2026Logitech Inc. publisher listing explicitly names PRO X3 support and version 1.8 adds the model. Current iPhone app requires iOS 15.6. Relative update timestamps are not converted into an exact date. Legacy feature parentheticals do not prove every advanced feature for PRO X3.12Maker product pageplay.google.com/store/apps/detailsRead 8 October 2026Actual Logitech-published Android app description and current What Is New explicitly add PRO X3. Basic mobile support is separate from per-connection voice compatibility.

User firmware updates

Not available

Not available

Dimensions and weight

2 of 2 differ

Headset weightiPublished headset mass without detachable cable or microphone when stated. A fixed cable remains included. Any unqualified maker weight is identified in the source note.

322.8g(11.4 oz)2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026Specification: 322.8 g. Unqualified maker weight, not independently weighed. Microphone inclusion is not stated.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Weight 322.8 g. Unqualified maker weight.

356g(12.6 oz)1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Exact current US maker claims 356 g. Microphone, pad choice and extension condition are unspecified. EMEA launch reporting gives 362 g and some retailer cards repeat 345 g from earlier models. Those figures are not merged. No measured mass stored.

Headset dimensionsiBody size with headband upright and ear cups in their normal wearing position. Width is across the head, height is top to bottom, and depth is front to back. Folded or flat-swivel dimensions are not substituted.

Not available

Width189Height176Depth95mm(7.4 × 6.9 × 3.7 in)1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Maker explicitly labels headset height 176, width 189 and depth 95 mm. Extension, microphone inclusion and pose are unpublished. No flat/folded pose is established.

Certifications

3 of 3 differ

Hi-Res Audio

Hi-Res Audio1Press releasenews.jbl.com/en-CEU/269347-jbl-announces-jbl-quantum-520-quantum-520x-and-quantum-120Read 14 October 2026Key technologies and FAQ: all four headsets feature Hi-Res Audio. The wired or wireless path is not stated.

Not available

Communication certifications

Zoom certified6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026Zoom certification: the headset meets all the technical and sound qualifications for Zoom certification.

Not available

FCC ID

APIJBLQ520X9Regulatory filingfccid.io/APIJBLQ520XRead 21 October 2026FCC ID APIJBLQ520X, Harman International Industries, product code JBLQ520X, gaming wireless headset, final action 2026-06-11. The USB wireless dongle has its own ID APIJBLQ520TM, which is not stored. The quick start guide names the headset model QUANTUM 520X.

Not available

Other certifications

EU Radio Equipment Directive 2014/53/EU conformity, EU RoHS Directive 2011/65/EU conformity, UK Radio Equipment Regulations 2017 conformity, UK RoHS Regulations 2012 conformity8Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw0e2c42a9/pdfs/JBL%20QUANTUM%20520X-EU_UK%20DOC_V8.1.pdfRead 21 October 2026EU and UK declarations of conformity for models QUANTUM 520X and QUANTUM 520 TM dated 2026-06-16. EU: RED 2014/53/EU and RoHS (EU) 2015/863 amending 2011/65/EU. UK: Radio Equipment Regulations 2017 and RoHS Regulations 2012.

Not available

In the box

3 of 3 differ

In the box

JBL Quantum 520X headset, Detachable boom microphone, Windshield foam for boom microphone, USB wireless dongle, USB-C to USB-A converter, USB-C cable, Quick start guide, warranty card and warning card2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026What's in the box: headset, detachable boom microphone, windshield foam, USB wireless dongle, USB-C cable and paperwork.6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026What is in the box: headset, detachable boom microphone, windshield foam, USB wireless dongle, USB-C to USB-A converter, USB-C cable, quick start guide, warranty card and warning card.7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026What is in the box: USB-C cable, USB wireless dongle, windshield foam, USB-C to USB-A converter, detachable boom microphone, QSG, warranty card and safety sheet.

Black PRO X3 LIGHTSPEED headset with fitted leatherette-covered memory foam ear pads, Alternative velour-covered memory foam ear pads, USB-A LIGHTSPEED receiver with 3.5 mm input, Detachable boom microphone with foam windscreen, USB-A to USB-C charging cable, 3.5 mm AUX cable, Soft storage bag, User documentation1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026Exact Black current maker inventory and gallery show the standard receiver bundle, installed leatherette pads, loose velour pads, windscreen-equipped mic, two cables and pouch. No optional stand or USB-C receiver adapter included.

Cables includediSupplied playback, charging, dongle and adapter cables. A permanently attached headset cable is included and named as fixed.

AJBL Quantum 520X Wireless

Type	Length (m)	Count
USB-C	1.5	1

Source3Spec databasegeektopia.es/es/product/jbl/quantum-520x-wirelessRead 14 October 2026Cable length 1.5 m with a USB-C connector. The USB-C cable in the box matches this listing. The other end of the cable is not stated.

BLogitech G PRO X3 LIGHTSPEED

Type	Count
USB-A to USB-C charging cable	1
3.5 mm AUX cable	1

Source1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026One A-C charging cable and one AUX playback cable. Exact US supplied lengths unproved and omitted. Receiver is not counted as a cable.

Carrying caseiSupplied carrying case or pouch. A retail carton does not count as a carrying case.

None7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026The complete box list holds no carrying case or pouch.

Soft1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Links

Not compared

Product page

www.jbl.com/QUANTUM520X.html12Maker product pagejbl.com/QUANTUM520X.htmlRead 21 October 2026JBL US product page with the spec sheet, quick start guide and declaration of conformity downloads.

www.logitechg.com/en-us/shop/p/pro-x3-lightspeed.981-0017381Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Spec sheet

www.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdf6Maker spec sheet (PDF)jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwb8b62ee8/pdfs/JBL_Quantum_520X_Specsheet_EN.pdfRead 21 October 2026JBL Quantum 520X spec sheet, 2 pages, English, created 2026-08-20.

Not available

Manual

www.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdf7Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwff42b79c/pdfs/JBL_Quantum_520X_QSG_Global.pdfRead 21 October 2026Multilingual quick start guide, 40 pages. English pages 1 to 10.

www.logitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdf2Owner's manuallogitech.com/content/dam/support/g-audio/pro-x3-lightspeed/pro-x3-lightspeed-amr.pdfRead 8 October 2026Original maker Americas setup guide. English printed pages 3-16 read directly and control, wired and spare-parts pages visually inspected.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year2Retailer pageaudio46.com/products/jbl-quantum-520x-wireless-gaming-headsetRead 14 October 2026US listing: 1 year limited JBL manufacturer warranty.

2years1Maker product pagelogitechg.com/en-us/shop/p/pro-x3-lightspeed.981-001738Read 8 October 2026

Both are also in the API. Back to all headsets and headphones.