Headsets and headphones / Compare

Sennheiser HD 550 vs Sennheiser HDB 630

A

Product A: Sennheiser

HD 550

51 of 161 known

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B

Product B: Sennheiser

HDB 630

92 of 161 known

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All 161 fields

Every value links to where we found it.

Only differences

ASennheiser HD 550

BSennheiser HDB 630

General

6 of 8 differ

Series

HD 5001Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026Page 2 identifies HD 500 series.

Not available

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

HD 550, 7004551Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

HDBT, 800164, 8001532Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Regulatory HDBT from exact manual. Current Lunar Silver 800164 / UPC 810091276273 and Black 800153 / UPC 810091276099 directly joined in public maker SKU rows. Legacy 700445 remains in old specification text but is not added to current variant rows. No assumption that old commercial barcode identifies the new box.

GTIN / EAN

4260752333498, 8100912735861Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026Page 3 Technical Data. Maker V02 EN, February 17 2025, mirrored by Geizhals.

810091276273, 8100912760992Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026

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

19 March 20252Press releasecdn.uc.assets.prezly.com/125ff0a6-9592-4c48-be8d-28f7b3273ca5/-/inline/no/Press_Release_Sennheiser_HD_550_EN.pdfRead 23 October 2026

8 October 20257Press releasenewsroom.sennheiser.com/audiophile-sound-cut-loose-lyf8raRead 5 October 2026Maker dateline October 8, 2025 announcing HDB 630, with October 21 planned shipment. Newsroom header October 7 differs by publication timing, dateline used. Planned shipping not used alone as actual retail.

Status

Available3Maker product pageus.sennheiser-hearing.com/products/hd-550Read 23 October 2026

Available2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Exact public maker variants both available true. Current selling prices are not used as launch 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

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.

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.

$299.952Press releasecdn.uc.assets.prezly.com/125ff0a6-9592-4c48-be8d-28f7b3273ca5/-/inline/no/Press_Release_Sennheiser_HD_550_EN.pdfRead 23 October 2026Page 3 launch MSRP $299.95 USD before tax.

$499.959Press releasenewsroom.sennheiser.com/audiophile-sound-cut-looseRead 5 October 2026Original international maker launch release Availability explicitly states MSRP 499.95 USD. This is launch MSRP, not the current store amount or reviewer metadata. EUR tax scope unproved and omitted.

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.

€299.92Press releasecdn.uc.assets.prezly.com/125ff0a6-9592-4c48-be8d-28f7b3273ca5/-/inline/no/Press_Release_Sennheiser_HD_550_EN.pdfRead 23 October 2026Page 3 launch MSRP EUR 299.90, including VAT as published.

Not available

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

Not available

US5Reviewsoundguys.com/sennheiser-hdb-630-review-audiophile-anc-at-a-cost-146569Read 5 October 20269Press releasenewsroom.sennheiser.com/audiophile-sound-cut-looseRead 5 October 2026Maker explicitly publishes the US suggested retail price. Current exact US storefront independently confirms the marketed US configuration.

ColoursiThe maker's own colour names

Black7Reviewtechradar.com/gaming/sennheiser-hd-550-reviewRead 23 October 2026Design describes black finish.

Lunar Silver, Black2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026

Segment

Music3Maker product pageus.sennheiser-hearing.com/products/hd-550Read 23 October 2026Maker categorizes these as audiophile headphones for critical music listening.

Music7Press releasenewsroom.sennheiser.com/audiophile-sound-cut-loose-lyf8raRead 5 October 2026Maker launch describes audiophile music listening, consumer travel and voice calls.

Design

2 of 7 differ

Form factor

Over-ear4Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026Page 3 technical specifications: wired headband, over-ear circumaural, open-back.

Over-ear1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Open4Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

Closed1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

Wearing style

Headband4Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

Headband1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

None11Measurementdiyaudioheaven.wordpress.com/measurements/brands-s-se/hd550Read 23 October 2026Specifications explicitly says collapsible No.

Flat5Reviewsoundguys.com/sennheiser-hdb-630-review-audiophile-anc-at-a-cost-146569Read 5 October 2026Exact review says headphones fold flat into case, not inward into a compact headband. Current manual page 43 generic fold up wording interpreted with exact flat photograph and maker flat dimensions.

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

Yes11Measurementdiyaudioheaven.wordpress.com/measurements/brands-s-se/hd550Read 23 October 2026Build description distinguishes sideways swivel from limited vertical tilt.

Yes5Reviewsoundguys.com/sennheiser-hdb-630-review-audiophile-anc-at-a-cost-146569Read 5 October 2026Review flat-fold description with current manual storage diagram. RTINGS public Travel paragraph explicitly earcups swivel.

RGB lighting

Not available

Not available

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

Not available

Not available

Drivers and sound

10 of 20 differ

Driver type

Dynamic5Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

Dynamic1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

38mm6Press releasecdn.uc.assets.prezly.com/125ff0a6-9592-4c48-be8d-28f7b3273ca5/-/inline/no/Press_Release_Sennheiser_HD_550_EN.pdfRead 23 October 2026Page 1 custom 38 mm transducer.

42mm1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Not available

Not available

Diaphragm material

Laminate plastic foil7Reviewtechradar.com/gaming/sennheiser-hd-550-reviewRead 23 October 2026Design and features quotes maker on diaphragm construction.

Not available

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.

Min6 HzMax39.5 kHz5Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

Min6 HzMax40 kHz2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Exact current maker table and newer manual page 48: 6 Hz-40 kHz using Line-In, USB at 96 kHz, or Bluetooth aptX Adaptive at 96 kHz. Other settings 6 Hz-22 kHz. Older launch sheet limited analog/Bluetooth to 22 kHz, so current exact conditions take precedence.

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.

150Ω5Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

480Ω1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Maker explicitly active 480 ohms. Headphones require power even on analog input. No passive impedance exists in the table.

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.

106.7dB5Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026Page 3: 106.7 dB SPL at 1 kHz / 1 Vrms.

105dB1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026105 dB SPL at 1 kHz / 0 dBFS. No per-1-mW or per-1-V sensitivity reference assigned.

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

Per 1 V5Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

Not available

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

0.2%5Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026Page 3: less than 0.2% at 1 kHz / 90 dB SPL. Stored upper bound.

0.2%1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Advertised strict upper bound below 0.2 percent at 1 kHz / 100 dB SPL. Stored 0.2 is the published ceiling, not a measured result.

Max input power

Not available

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

96kHz2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Maximum playback resolution 24-bit/96 kHz through USB-C or compatible aptX Adaptive source, including supplied BTD 700. Hi-res mode must be enabled in app. Not a claim that every codec supports this format.

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

Not available

24bits2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Maker explicit playback maximum 24 bits. No microphone recording format inferred.

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.

No12Maker product pageus.sennheiser-hearing.com/products/hd-550Read 23 October 2026Maker explicitly describes a direct analog signal path with no electronics. No powered noise cancellation, digital USB audio or stored electronic equalizer.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 40 expressly EQ effects stored in headphones and active without app on a different Bluetooth source.

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

Not available

56Reviewrtings.com/headphones/reviews/sennheiser/hdb-630Read 5 October 2026Public Office Work verdict explicitly five-band parametric EQ. Crossfeed is separate, not a virtual surround license or sixth EQ band.

EQ presets

Not available

Not available

Volume limit

Not available

Not available

Spatial audio

None of 3 known

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.

Not available

Not available

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

7 of 10 differ

Active noise cancelling

No12Maker product pageus.sennheiser-hearing.com/products/hd-550Read 23 October 2026Maker explicitly describes a direct analog signal path with no electronics. No powered noise cancellation, digital USB audio or stored electronic equalizer.

Yes1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Not available

Hybrid1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Not available

43Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 8 explicitly two outward and two inward ANC microphones, four physical capsules. Separate from four voice microphones on page 7.

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

Not available

Yes1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

Adjustable transparency

Not available

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 33 pinch gestures or app slider adjusts ANC and transparency intensity. No numeric level count inferred.

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

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 34 explicitly selectable Wind noise reduction Off, Auto or Max. These are wind-control modes, not ANC attenuation levels.

Measured

4 of 21 differ

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

Bass rolls off gently below 25 Hz. The response stays within 3 dB from 25 Hz to 2 kHz. Treble has a peak near 13 kHz.11Measurementdiyaudioheaven.wordpress.com/measurements/brands-s-se/hd550Read 23 October 2026Flatbed rig with good seal, no smoothing. Reviewer applies microphone and low-frequency correction. Measurements published July 11 2025. Actual fit can differ.

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.

ASennheiser HD 550

Not available

BSennheiser HDB 630

Connection	Hours (h)
Bluetooth	53.77

Source5Reviewsoundguys.com/sennheiser-hdb-630-review-audiophile-anc-at-a-cost-146569Read 5 October 2026Company-provided unit tested over two weeks. Battery result 53 h 46 min added November 6, 2025, stored 53.77 h rounded. Firmware/app version, codec and ANC state not reported for this run, left unknown. No partial-battery extrapolation from Tom Guide workday percentages.

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

Not available

53.77h=CalculatedFrom Measured battery life

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.

238g(8.4 oz)11Measurementdiyaudioheaven.wordpress.com/measurements/brands-s-se/hd550Read 23 October 2026Measured specimen 238 g excluding cable. Maker claim stays 237 g.

Not available

Microphone

9 of 16 differ

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

None7Reviewtechradar.com/gaming/sennheiser-hd-550-reviewRead 23 October 2026Base headphone has no microphone. Optional boom arm is excluded.

Built-in1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

Microphone element

Not available

MEMS1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Not available

Omnidirectional3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 48 explicitly four omnidirectional speech microphones in 2x2 beamforming array. Capsule pattern is not the processed beamforming output pattern.

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

Not available

41Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Exact maker table says two speech microphones per side, total four. Current manual device diagram page 7 and specifications page 48 also explicitly four. ANC microphones counted separately.

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.

Not available

Min50 HzMax10 kHz1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Manual page 48 adds -3 dB condition to same 50 Hz-10 kHz maker speech range.

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

Not available

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

Not available

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

Not available

Not available

Flip to mute

Not available

Not available

Mute button

Not available

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 36 multifunction button once toggles microphone while in call. Shared context-sensitive button, not dedicated mute hardware. BTD 700 also has its own separate mute control.

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

Voice prompt3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Headphone Mute on / Mute off voice prompts page 36. Adapter red LED page 37 is not classified as a headphone cup or microphone LED.

Sidetone

Not available

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

Adjustable sidetone

Not available

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Comfort Call page 37 own-voice playback can be enabled/disabled in app. No continuous intensity slider asserted.

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

Not available

Not available

Connectivity

13 of 20 differ

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

Analog8Reviewsoundguys.com/sennheiser-hd-550-review-134419Read 23 October 2026

Analog, USB, Bluetooth3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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

3.5 mm TRS, 6.35 mm8Reviewsoundguys.com/sennheiser-hd-550-review-134419Read 23 October 2026

3.5 mm TRS3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 5 stereo 3.5 mm source and 2.5 mm headphone plugs. Analog mode disables Bluetooth, call controls and headphone microphone functions, page 41. No TRRS microphone cable asserted.

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

2.5 mm8Reviewsoundguys.com/sennheiser-hd-550-review-134419Read 23 October 2026Connectivity section explicitly identifies 2.5 mm locking headset end and 3.5 mm TRS source end.

2.5 mm3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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

1.8m9Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

1.2m3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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-C3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 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.

No12Maker product pageus.sennheiser-hearing.com/products/hd-550Read 23 October 2026Maker explicitly describes a direct analog signal path with no electronics. No powered noise cancellation, digital USB audio or stored electronic equalizer.

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 42 explicitly USB playback plus microphone recording on Mac/PC/mobile device, with simultaneous charging. Bluetooth should be disconnected first.

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.

Yes3Maker product pageus.sennheiser-hearing.com/products/hd-550Read 23 October 2026Direct analog signal path with no electronics and no charging or pairing.

No6Reviewrtings.com/headphones/reviews/sennheiser/hdb-630Read 5 October 2026Public Wired Gaming verdict explicitly headphones must be powered on even via analog cable. Active analog converter requires battery. No gated measurements accessed.

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

Not available

Included3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 5 exact BTD 700 USB-C Bluetooth transmitter included. It is not a proprietary 2.4 GHz headset connection. No USB-A adapter in this exact box list.

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-C3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 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

Not available

Bluetooth

Not available

5.21Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Headphones Bluetooth 5.2. Included BTD 700 adapter Bluetooth 5.4 is different hardware and is not the headphones version.

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

Not available

SBC, AAC, aptX, aptX HD, aptX Adaptive1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Headphone codecs SBC/AAC/aptX/aptX HD/aptX Adaptive. BTD 700 supports additional LC3 and aptX Lossless with other compatible devices, but these are not asserted for HDB 630.

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

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 19 two active Bluetooth sources, one audio stream at a time, six stored pairing profiles. BTD 700 itself stores one headset and should not be confused with headset pairing memory.

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

Not available

23Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

Paired devices remembered

Not available

63Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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

2 of 2 differ

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

Not available

Yes4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026Exact HDB 630 FAQ troubleshooting says triple-press supplied BTD 700 button triggers gaming/low-latency mode and scales 96 kHz down to 48 kHz. This is the matched adapter route, not native proprietary 2.4 GHz. No generic dongle 30 ms claim borrowed.

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

ASennheiser HD 550

Not available

BSennheiser HDB 630

Connection	Mode	Latency (ms)
Bluetooth	aptX Adaptive	80
USB	Audio playback maximum	40
Analog	Aux without microphone	30

Source4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026Exact HDB 630 gaming FAQ states aptX Adaptive 80 ms from Qualcomm, USB audio max 40 ms and aux 30 ms without microphone. USB microphone separate max 40 ms excluded from playback rows. Host/test method unspecified, these are manufacturer claims, not lab measurements.

Compatibility

2 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.

PS5, PS4, Xbox Series X|S, Xbox One, Nintendo Switch7Reviewtechradar.com/gaming/sennheiser-hd-550-reviewRead 23 October 2026Comparison table explicitly lists these platforms. PC stored as Windows, corroborated by wired PC review. Mobile lacks named OS and is omitted.

Windows, macOS, Android, iOS3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 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.

ASennheiser HD 550

Not available

BSennheiser HDB 630

Platform	Connection
Windows	USB
macOS	USB
Windows	Bluetooth
macOS	Bluetooth
Android	Bluetooth
iOS	Bluetooth

Source3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Mac/PC USB digital playback and recording page 42, Bluetooth smartphone and PC/Mac call sections, and included BTD 700 host compatibility page 49 (Windows 10+, macOS 11/12, Android 13+, USB-C iPhone/iPad). Generic mobile USB does not establish all headphone USB routes on every phone.

Official licence

Not available

Not available

Battery and charging

11 of 13 differ

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

Not available

700mAh1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026700 mAh at 3.7 V in sheet and manual, which coherently equals 2.59 Wh. Sheet rounded energy 2.7 Wh differs, so no energy field inferred.

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

Not available

No4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026Exact FAQ explicitly batteries cannot be exchanged, sealed embedded pack. Professional service is separate from user swapping.

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

Not available

11Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Page 3 battery table one single physical cell installed, none outside product.

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.

ASennheiser HD 550

Not available

BSennheiser HDB 630

Connection	ANC	Hours (h)
Bluetooth	Yes	60

Source1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Up to 60 h music via Bluetooth with ANC, iPhone at mid volume, standard resolution. Exact FAQ separately claims up to 45 h using aptX Adaptive 24-bit/96 kHz with BTD 700. Codec-less table avoids duplicate indistinguishable rows.

Battery life (claimed, max)

Not available

60h=CalculatedFrom Claimed battery life

Battery life with ANC (claimed)

Not available

60h=CalculatedFrom Claimed battery life

Battery life without ANC (claimed)

Not available

Not available

Charging port

Not available

USB-C1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Not available

120min1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Maker full-charge claim about two hours. Manual page 16 explicitly complete charge cycle. Ambient above 30 C can extend duration.

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

Not available

10min1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

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

Not available

7h1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 202610-minute charge for up to seven hours playback, corroborated current manual page 16 and exact FAQ near-empty battery. Current maker comparison table says six hours, contradicted by those three more exact sources. ANC state and codec for quick charge unstated.

Use while charging

Not available

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 16 explicitly music/calls while charging, potentially extending recharge time.

Charging dock or stand

Not available

Not available

Controls

4 of 6 differ

Controls

Not available

Buttons, Touch3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

Volume control

None7Reviewtechradar.com/gaming/sennheiser-hd-550-reviewRead 23 October 2026No onboard controls or volume dial.

Touch3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 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.

Not available

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

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Pages 8 and 39 automatic lifting/on-head switch-on, pause/resume and call mute on removal.

Voice assistant

Not available

Siri, Google Assistant3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 38 host Siri or Google Assistant via multifunction button, Bluetooth or USB, conditional on device/app support. No always-listening assistant inferred.

Comfort and build

7 of 11 differ

Headband type

Padded7Reviewtechradar.com/gaming/sennheiser-hd-550-reviewRead 23 October 2026

Padded4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026

Headband material

Synthetic leather3Maker product pageus.sennheiser-hearing.com/products/hd-550Read 23 October 2026

Japanese protein leatherette4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026Exact FAQ specifically Japanese leatherette headband, maker press names protein leatherette from IDEATEX. Does not identify frame/yoke material.7Press releasenewsroom.sennheiser.com/audiophile-sound-cut-loose-lyf8raRead 5 October 2026Exact maker launch explicitly Japanese protein leatherette headband from IDEATEX.

Frame material

Plastic8Reviewsoundguys.com/sennheiser-hd-550-review-134419Read 23 October 2026Design describes plastic exterior and chassis.

Not available

Ear cup material

Steel mesh covers3Maker product pageus.sennheiser-hearing.com/products/hd-550Read 23 October 2026Maker names steel covers. Entire cup construction is not claimed to be steel.

Not available

Ear pad material

Synthetic velour9Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

Leatherette (synthetic)2Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Exact current product ear-pad material field explicitly synthetic leatherette, separate from headband lining.

Replaceable ear pads

Yes9Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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

Clip3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 44 fastening ring pulls off and replacements click audibly into place around earcup, clip fit.

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

Width42Height71mm(1.7 × 2.8 in)11Measurementdiyaudioheaven.wordpress.com/measurements/brands-s-se/hd550Read 23 October 2026Specifications explicitly names inner pad width 42 mm and height 71 mm. Front/rear depth differs, so a single depth is omitted. SoundGuys labels 43 x 75 mm as ear cup dimensions without saying usable opening.

Not available

Ear tips included

Not available

Not available

Dust and water rating

Not available

Not available

User-replaceable parts

Ear pads, Audio cable9Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026Page 3 lists replacement cable and ear pads.

Ear pads, Analog audio cable3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 44 ear-pad replacement. Exact FAQ also offers aux cable as spare. Sealed battery is not user exchangeable.

Software

3 of 3 differ

Companion app

Not available

Sennheiser Smart Control Plus1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

App platforms

Not available

Android, iOS1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026

User firmware updates

Not available

Yes3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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.

237g(8.4 oz)9Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026Page 3 explicitly excludes cable.

Not available

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

Width180Height195Depth51mm(7.1 × 7.7 × 2 in)1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026180 x 195 x 51 mm explicitly folded flat. No packaging, case or unfolded reviewer dimensions substituted.

Certifications

1 of 3 differ

Hi-Res Audio

Not available

Hi-Res Audio4Maker product pageus.sennheiser-hearing.com/pages/hdb-630-faqRead 5 October 2026Exact FAQ transducer answer explicitly Hi-Res Audio certification. Wireless Hi-Res logo certification not expressly identified and omitted.

Communication certifications

Not available

Not available

FCC ID

Not available

Not available

Other certifications

Not available

Not available

In the box

3 of 3 differ

In the box

HD 550 headphones, 1.80 m cable with 3.5 mm jack plug, 3.5 to 6.35 mm screw-on jack adapter, Drawstring bag, Safety guide9Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026Page 3 complete box contents.

Sennheiser HDB 630 headphones, BTD 700 USB-C Bluetooth dongle, USB-C to USB-C cable, 3.5 mm to 2.5 mm analog audio cable, In-flight adapter, Carry case, Quick guide, Safety guide, Compliance sheet3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 5 full exact bundle includes BTD 700, both 1.2 m cables, in-flight adapter, case and three documents. Older sheet omits dongle from box list, newer exact manual/current product agree it is included.

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

ASennheiser HD 550

Type	Length (m)	Count
2.5 mm locking headset plug to 3.5 mm stereo plug	1.8	1

Source9Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

BSennheiser HDB 630

Type	Length (m)	Count
USB-C to USB-C audio and charging cable	1.2	1
3.5 mm to 2.5 mm stereo audio cable	1.2	1

Source3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026

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

Soft9Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

Hard5Reviewsoundguys.com/sennheiser-hdb-630-review-audiophile-anc-at-a-cost-146569Read 5 October 2026Exact review explicitly fabric-covered hardshell case. Maker packaging Hard box not substituted for carry case.

Links

Not compared

Product page

us.sennheiser-hearing.com/products/hd-5503Maker product pageus.sennheiser-hearing.com/products/hd-550Read 23 October 2026

us.sennheiser-hearing.com/products/hdb-6302Maker product pageus.sennheiser-hearing.com/products/hdb-630Read 5 October 2026Full current maker product HTML and public /products/hdb-630.js directly opened. Current model specification and exact initial product swatches are separated from comparison products.

Spec sheet

gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdf1Maker spec sheet (PDF)gzhls.at/blob/ldb/2/9/c/b/88e1c5f7d6f57d4eddbdef407b2427546a53.pdfRead 23 October 2026

cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdf1Maker spec sheet (PDF)cdn.uc.assets.prezly.com/366a6e36-55f2-48e2-a1a2-9a22870de4a1/-/inline/no/Senn_HDB%2520630_Spec_Sheet_EN.pdfRead 5 October 2026Full three-page maker spec sheet dated 08/25 directly opened and technical/battery tables visually checked. Original article 700445 / EAN 4260752333450 / UPC 810091273548 is documented. Current maker storefront replaces commercial SKUs without a new model name. Only current exact SKU/UPC pairs are listed below. Device weight 311 g conflicts with newer 12/25 manual page 48 at 293 g. No maker correction establishes either figure, so weight is omitted.

Manual

www.richersounds.com/content/product_files/HD550.pdf10Owner's manualrichersounds.com/content/product_files/HD550.pdfRead 23 October 2026Maker safety guide HD 505 / HD 550 with connection, headband adjustment and ear pad replacement illustrations. Retailer mirror because current maker Download article is empty.

cdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdf3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Full 51-page official English manual, version 12/25 A02, directly opened. Headphone and included Bluetooth adapter sections reviewed separately.

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

0 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.

2years3Maker product pageus.sennheiser-hearing.com/products/hd-550Read 23 October 2026US maker page includes a 2-year manufacturer warranty.

2years3Owner's manualcdn.sennheiser-hearing.com/product-documents/product-downloads/hdb-630/Instruction%20manual%20HDB%20630/Instruction_manual_HDB_630.pdfRead 5 October 2026Page 50 HDB 630 warranty 24 months in named North America, Latin America/Caribbean, Asia-Pacific, Europe and Middle East. Included BTD 700 separately 12 months in first region group, 24 months Europe/Middle East. Headphone field reflects HDB 630, not accessory warranty.

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