Headsets and headphones / Compare

HyperX Cloud II vs JBL Quantum 520X Wireless

A

Product A: HyperX

Cloud II

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B

Product B: JBL

Quantum 520X Wireless

65 of 161 known

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Every value links to where we found it.

Only differences

AHyperX Cloud II

BJBL Quantum 520X Wireless

General

6 of 8 differ

Series

Cloud1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Cloud family.

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

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

KHX-HSCP-GM, KHX-HSCP-RD, KHX-HSCP-PK, 4P5M0AA1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Maker US store SKU 4P5M0AA, colour Black-Red. The part numbers KHX-HSCP-GM, KHX-HSCP-RD and KHX-HSCP-PK come from the maker manual.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Part Numbers: KHX-HSCP-GM (Gun Metal), KHX-HSCP-PK (Pink), KHX-HSCP-RD (Red).

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

GTIN / EAN

1961880484361Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Maker store barcode 196188048436 for SKU 4P5M0AA.

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.

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

9 February 20154Press articlefuturelooks.com/kingston-starts-shipping-hyperx-cloud-ii-gaming-headsetRead 10 October 2026Reproduces the HyperX press release dated Fountain Valley, February 9, 2015, which says HyperX Cloud II is shipping now.

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.

Status

Available1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026In stock on the maker US store. Overview page lists the headset at $79.99 MSRP.

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.

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

Not available

Not available

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.

HyperX Cloud III8Reviewrtings.com/headphones/reviews/hyperx/cloud-2-cloud-iiRead 21 October 2026Public changelog, Sep 12 2023: the new generation of these headphones, the HyperX Cloud III, come with app support.10Reviewtomshardware.com/reviews/hyperx-cloud-iiiRead 23 October 2026Tom's Hardware calls the Cloud II the predecessor of the HyperX Cloud III and says HyperX had not launched a successor until the Cloud III.

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.

$99.994Press articlefuturelooks.com/kingston-starts-shipping-hyperx-cloud-ii-gaming-headsetRead 10 October 2026Article says the headset is listed at $99.99. US prices exclude sales tax.5Reviewlegitreviews.com/hyperx-cloud-ii-gaming-headset-review_157486Read 10 October 2026Expected suggested retail price of $99.99.

$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.

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.

Not available

€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.

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

Not available

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.

ColoursiThe maker's own colour names

Gunmetal, Red, Pink, Black-Red1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026The US store lists Black-Red. The manual part numbers name Gun Metal, Red and Pink.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Gun Metal, Pink and Red part numbers. Gun Metal is stored as Gunmetal, as written in the maker press release.

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.

Segment

Gaming1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Sold in the maker Gaming Headsets category.

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

Design

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Form factor

Over-ear1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Form Factor: Over ear, circumaural, closed back.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Technical specifications: Sound coupling to the ear circumaural.

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

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

Closed1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Form Factor: Over ear, circumaural, closed back.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Operating principle: Closed.

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

Wearing style

Headband2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Adjustable leatherette headband with aluminum arms.

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.

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.

No7Reviewpcworld.com/article/427456/review-the-hyperx-cloud-ii-makes-the-best-sub-100-headset-a-little-better.htmlRead 21 October 2026Review text: you can't rotate the earcups. Tom's Guide describes the cups pivoting back and forth, which is tilting and does not count for this field.

Not available

RGB lighting

Not available

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

Not available

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Drivers and sound

9 of 20 differ

Driver type

Dynamic1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Driver: Dynamic, 53mm with neodymium magnets.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Transducer type: Dynamic 53mm with Neodynium Magnets.

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.

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

53mm1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Driver: Dynamic, 53mm with neodymium magnets. Overview says specially-tuned 53mm drivers.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Transducer type: Dynamic 53mm.

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.

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

12Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026One 53 mm transducer per ear cup.

Not available

Diaphragm material

Not available

Not available

Magnet

Neodymium1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Driver: Dynamic, 53mm with neodymium magnets.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Neodymium magnets (the manual spells it Neodynium).

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.

Min15 HzMax25 kHz2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Frequency response 15Hz-25KHz (earphones). The current store page says 10Hz-23kHz. The manual, datasheet and launch press release agree on 15Hz-25kHz, so that is stored.3Maker spec sheet (PDF)katalog.atcomp.cz/katalog/HP-4P5M0AA/HP-4P5M0AA_datasheet.pdfRead 10 October 2026Datasheet MKD-301.2 EN (2017): Frequency response 15Hz-25,000 Hz.

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).

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

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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.

60Ω2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Nominal impedance 60 ohm per system.3Maker spec sheet (PDF)katalog.atcomp.cz/katalog/HP-4P5M0AA/HP-4P5M0AA_datasheet.pdfRead 10 October 2026Nominal impedance 60 ohm per system.

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.

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.

98dB1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Sensitivity 98dBSPL/mW at 1kHz. The manual gives Nominal SPL 98 +/- 3 dB.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Nominal SPL 98 +/- 3 dB.

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.

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

Per 1 mW1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Sensitivity 98dBSPL/mW at 1kHz.

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.

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

2%1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026T.H.D: < 2%. Stored as the upper bound. Test level is not stated.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026T.H.D < 2%. Stored as the upper bound.

Not available

Max input power

150mW2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Power handling capacity 150 mW. Stored as the rated maximum input power.3Maker spec sheet (PDF)katalog.atcomp.cz/katalog/HP-4P5M0AA/HP-4P5M0AA_datasheet.pdfRead 10 October 2026Power handling capacity 150mW.

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.

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.

16bits1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Connections and Features: Bit-Depth 16 bit, USB 2.0. This describes the USB control box.

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

Not available

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

Not available

Not available

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.

HyperX Virtual 7.1 Surround Sound1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Virtual 7.1 Surround Sound. The footnote says it is output as a 2-channel stereo signal. It runs on the USB control box.3Maker spec sheet (PDF)katalog.atcomp.cz/katalog/HP-4P5M0AA/HP-4P5M0AA_datasheet.pdfRead 10 October 20267.1 virtual surround sound, hardware-driven, no driver needed.

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.

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

Not available

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Head tracking

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Noise cancelling

0 of 10 differ

Active noise cancelling

No2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Passive closed-cup design. The headset has no battery or active electronics.3Maker spec sheet (PDF)katalog.atcomp.cz/katalog/HP-4P5M0AA/HP-4P5M0AA_datasheet.pdfRead 10 October 2026Closed-cup design for passive noise cancellation.

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.

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

1 of 21 differ

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

U-shaped curve with scooped mids and boosted highs. A dip near 4.2 kHz.9Measurementsonarworks.com/blog/reviews/hyperx-cloud2-reviewRead 21 October 2026Sonarworks review dated 2019-05-23, before HP took over HyperX in 2021. It describes a typical U-curve with scooped mids and boosted highs, and calls the dip at 4.2 kHz the only unusual feature. Hardware revision and test rig are not stated.

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

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

Not available

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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

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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

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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

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Clamping forceiMeasured by a reviewer, not claimed by the maker

Not available

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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

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Microphone

5 of 16 differ

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

Detachable boom1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Detachable, noise-cancelling mic.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Detachable microphone with adjustable arm and condenser, plug and unplug for music-only use.

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.

Microphone element

Electret condenser1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Element: Electret condenser microphone.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Microphone transducer type: Condenser (back electret).

Not available

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

Cardioid2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Polar Pattern: Cardioid. The store page says uni-directional.3Maker spec sheet (PDF)katalog.atcomp.cz/katalog/HP-4P5M0AA/HP-4P5M0AA_datasheet.pdfRead 10 October 2026Microphone polar pattern: cardioid.

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.

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

12Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026What's Included: 1 Detachable Microphone. This is the only voice microphone listed.

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.

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.

12Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026What's Included lists one microphone and the passive headset has no other microphones. The maker states no total.

Not available

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

Min50 HzMax18 kHz2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Frequency response 50 - 18,000 Hz (microphone). The manual gives microphone output -39 +/- 3 dB, the store page gives -42 dBV (1V/Pa at 1kHz), so no microphone sensitivity is stored.

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.

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

Not available

-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.

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

Not available

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

DSP3Maker spec sheet (PDF)katalog.atcomp.cz/katalog/HP-4P5M0AA/HP-4P5M0AA_datasheet.pdfRead 10 October 2026Digitally enhanced noise-cancelling microphone with automatic gain control and echo cancellation enabled through the USB sound card. This works with the USB control box only.

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.

Flip to mute

Not available

Not available

Mute button

Yes6Maker spec sheet (PDF)kingston.com/datasheets/KHX-HSCP_us.pdfRead 21 October 2026Control box features: Microphone slide mute.

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.

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

Not available

Sidetone

Not available

Not available

Adjustable sidetone

Not available

Not available

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

Not available

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

Connectivity

10 of 20 differ

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

Analog, USB2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Direct connect to a device with a 3.5mm audio jack, or through the USB control box for computers.

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

3.5 mm TRRS2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Connection: Mini stereo jack plug (3.5MM). The older datasheet says 4 pole.

Not available

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

Fixed cable2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Attached cable with 3.5mm input jack. The cable is permanently attached to the headset.

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.

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

2m2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Cable length and type: 1m + 2m extension. The longest cable is the 2 m extension, stored as 2. The manual does not say if it is the USB control box cable.

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.

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.

Not available

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.

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.

Not available

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.

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.

Yes2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Usage with no control box: connect the headset directly to a device with a 3.5mm audio jack. The headset has no battery.

Not available

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

None2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Wired headset.

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.

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.

Not available

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.

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

Not available

Bluetooth

Not available

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.

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

Not available

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, PS5, PS4, Xbox Series X|S, Xbox One, Nintendo Switch, Android, iOS1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Compatibility: PC, PS5, PS4, Xbox Series X|S, Xbox One, Nintendo Switch, Mobile. The manual describes PC and Mac over USB and phones and tablets over the 3.5 mm jack. Mobile is stored as Android and iOS.

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.

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.

AHyperX Cloud II

Platform	Connection
Windows	USB
macOS	USB
PS4	Analog
Xbox One	Analog

Source2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026PC and Mac use the USB control box. PS4 uses the headset jack on the controller. Xbox One needs the maker adapter sold separately and no control box. Phones and tablets use the 3.5 mm jack.

BJBL 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.

Official licence

Not available

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.

Battery and charging

7 of 13 differ

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

Not available

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).

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

Not available

Not available

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.

AHyperX Cloud II

Not available

BJBL 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.

Battery life (claimed, max)

Not available

37h=CalculatedFrom Claimed battery life

Battery life with ANC (claimed)

Not available

Not available

Battery life without ANC (claimed)

Not available

Not available

Charging port

Not available

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.

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

Not available

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.

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

Not available

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.

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

Not available

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.

Use while charging

Not available

Not available

Charging dock or stand

Not available

Not available

Controls

3 of 6 differ

Controls

Buttons, Slider, In-line remote6Maker spec sheet (PDF)kingston.com/datasheets/KHX-HSCP_us.pdfRead 21 October 2026Control box features: independent headset and microphone volume control, 7.1 virtual surround sound control and microphone slide mute. PCWorld calls the volume controls rockers. Buttons stands for the rockers and the 7.1 toggle, slider for the mic mute slide.7Reviewpcworld.com/article/427456/review-the-hyperx-cloud-ii-makes-the-best-sub-100-headset-a-little-better.htmlRead 21 October 2026Review text: the USB soundcard features big rockers for both headset and mic volume, as well as a 7.1 toggle and mic mute. The mic mute slides.

Not available

Volume control

In-line remote6Maker spec sheet (PDF)kingston.com/datasheets/KHX-HSCP_us.pdfRead 21 October 2026Independent headset and microphone volume control sits on the USB control box that is in line with the cable.7Reviewpcworld.com/article/427456/review-the-hyperx-cloud-ii-makes-the-best-sub-100-headset-a-little-better.htmlRead 21 October 2026Review text: the volume rockers are on the USB soundcard control box.8Reviewrtings.com/headphones/reviews/hyperx/cloud-2-cloud-iiRead 21 October 2026Public comparison text: the Cloud II has an in-line remote that gives access to a mic mute, volume control and channel mixing. The test results are behind the RTINGS paywall and were not used. RTINGS tested the Kingston-era variant.

Not available

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.

Not available

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.

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

6 of 11 differ

Headband type

Padded2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Adjustable, soft-padded leatherette headband.5Reviewlegitreviews.com/hyperx-cloud-ii-gaming-headset-review_157486Read 10 October 2026Design has a padded headband.

Not available

Headband material

Leatherette2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Introduction: adjustable, soft-padded leatherette headband.

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.

Frame material

Aluminum1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Frame Type: Aluminum.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Solid aluminum construction.

Not available

Ear cup material

Not available

Not available

Ear pad material

Memory foam and premium leatherette1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026Ear Cushions: Memory foam and premium leatherette.

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.

Replaceable ear pads

Yes1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026The box includes velour ear cushions as a second set.2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 20261 spare set of velour ear cushions in the package contents.5Reviewlegitreviews.com/hyperx-cloud-ii-gaming-headset-review_157486Read 10 October 2026Design has user replaceable earcups.

Not available

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

Ear cushions, Microphone2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026Ear cushions are swappable with the spare set. The microphone is detachable.

Not available

Software

2 of 3 differ

Companion app

Not available

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

App platforms

Not available

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.

User firmware updates

Not available

Not available

Dimensions and weight

1 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.

320g(11.3 oz)6Maker spec sheet (PDF)kingston.com/datasheets/KHX-HSCP_us.pdfRead 21 October 2026Datasheet MKD-301.1US (2015), Specifications, Headset: Weight with microphone and cable: 320g. The figure includes the detachable microphone and the cables. The maker store page gives 0.7 lb.

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.

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

Not available

Certifications

3 of 3 differ

Hi-Res Audio

Not available

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.

Communication certifications

TeamSpeak3Maker spec sheet (PDF)katalog.atcomp.cz/katalog/HP-4P5M0AA/HP-4P5M0AA_datasheet.pdfRead 10 October 2026Certified by TeamSpeak and optimised for Skype. Distributor copy of the maker datasheet for HP part 4P5M0AA.

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.

FCC ID

Not available

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.

Other certifications

Not available

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.

In the box

3 of 3 differ

In the box

Gaming Headset, USB advanced audio control box, Detachable mic, Velour Ear Cushions, Quick Start Guide1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026What's In the Box: Gaming Headset, USB advanced audio control box, Detachable mic, Velour Ear Cushions, Quick Start Guide. The older manual also lists a mesh bag, so the carrying case is not stored.

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.

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

AHyperX Cloud II

Type	Length (m)	Count
Attached headset cable with 3.5 mm plug	1	1
Extension cable with USB control box	2	1

Source2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 20261m headset cable plus 2m extension. The manual shows the control box cable with its USB connector.

BJBL 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.

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

Not available

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.

Links

Not compared

Product page

hyperx.com/products/hyperx-cloud-ii1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026

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.

Spec sheet

hyperx.com/products/hyperx-cloud-ii1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026

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.

Manual

media.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdf2Owner's manualmedia.kingston.com/support/downloads/HX_Cloud2_Headset_Manual.pdfRead 10 October 2026

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.

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.

2years1Maker product pagehyperx.com/products/hyperx-cloud-iiRead 10 October 2026

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

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