Skip to specifications
versus.deals
Menu
Browse versus.deals
HEADPHONES

Sennheiser HD 650

titanium-silver · 300 ohm · standard 3 m unbalanced cable · Sennheiser part 508825

Acoustic design
Open-back
Wearing style
Over-ear (circumaural), open-back dynamic headphones
Nominal impedance
300 ohm

The HD 650 is an open-back, over-ear headphone with a 42 mm dynamic driver rated 10–41,000 Hz (−10 dB) at 300 ohms. It comes with a detachable 3 m 6.35 mm cable and a 3.5 mm adapter; balanced cables are optional extras.

Prices & buying options

UK
Search Amazon UKSearch eBay UK
US
Search Amazon USSearch eBay US

Search links open retailer results.

UK: no verified listing yet · checked daily

Price history · US
eBay USnew · USD

Item price · same listing and exact model

Latest check$330.00
Lowest shown$329.95

17 observed days · 1 Oct–17 Oct

eBay US observed item prices17 observed days. Last checked price per UTC day. Missing dates break the line. Use Explore dates or the table for exact values.
$330.0017 Oct, 12:02 UTC

Last recorded item price per UTC day. Delivery and tax are excluded. Gaps mean no recorded check. Past prices do not confirm current availability; this is not a market-wide price history.

View recorded prices
Exact listing · eBay US · USD
Checked (UTC)Item price
$579.95
$579.95
$579.95
$579.95
$579.95
$379.95
$329.95
$329.95
$379.95
$330.00
$330.00
$330.00
$330.00
$330.00
$330.00
$330.00
$330.00

As an eBay Partner, we may be compensated if you make a purchase.

Affiliate links

We may earn a commission. Search results can include other models; check the exact variant and final price with the retailer.

As an Amazon Associate I earn from qualifying purchases.

Price alert

Email me when the Sennheiser HD 650 gets cheaper on eBay. We check exact-model listings once a day at 12:00 UTC.

We'll send a link to confirm first.

THE ACTUAL PRODUCT
Sennheiser HD 650 headphones with the HD 650 badge, titanium-silver frame, black open grilles and detachable cable visible
Official product image · Image source detailsProduct imagery does not establish a retailer’s bundle or condition.
Compare with Sennheiser HD 600
Explore alternativesUpgrade from this product

Specifications checked 11 Sept 2026Manufacturer specifications, not a hands-on test.

Options worth comparing

Explore all alternatives

The nearest checked headphones by key specifications, with what differs from the Sennheiser HD 650. The first matches the Compare button above.

The useful part.

Key strengths

Its 42 mm dynamic driver has hand-paired transducers matched within ±1 dB, and the supplied 6.35 mm cable with 3.5 mm adapter fits both common socket sizes. The cable and velour ear pads are replaceable.

Manufacturer source Manufacturer source
The checks that matter.

Before you buy

At 300 ohms, check that your amplifier or audio source can drive the headphones properly. The documented connection uses the supplied analogue audio cable and 3.5 mm adapter.

Manufacturer source Manufacturer source

Sennheiser describes the intended use as listening at home with high-quality audio systems. The 4.4 mm balanced and XLR-4 cables are optional accessories.

Manufacturer source Manufacturer source
Every specification. With its source.

Full specifications

Suggest a correctionOur publishing standard

Exact configuration: 508825 · titanium-silver · 300 ohm · standard 3 m unbalanced cable

24 specifications in 6 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.

Design & fit

6 items
Acoustic design
Open-backSource
Wearing style
Over-ear (circumaural), open-back dynamic headphonesSource
Weight
260 g

Approximate, without the cable.

Source
Replaceable parts
Detachable cable and replaceable ear pads; headband padding via repair service

Replacement procedures are in the manual; spare-part availability varies.

Source
Ear pads
Velour ear pads; replaceable

Replacement procedure shown in the manual.

2 sources
Rated contact pressure
Approximately 6.0 N ±1.0 N

Nominal clamping force; individual fit and comfort can differ.

Source

Connections & battery

5 items
Wired / wireless connections
Wired analogue; detachable 6.35 mm unbalanced cable and included 3.5 mm adapter

Optional 4.4 mm and XLR-4 balanced cables are sold separately.

2 sources
Battery life
Not listed by the manufacturer

The reviewed exact manufacturer sources do not explicitly give battery life or state that no battery is required for operation. A wired analogue connection is known; the generic disposal wording “battery/rechargeable battery (if applicable)” establishes neither presence nor absence.

2 sources
Supplied plug configuration
6.35 mm unbalanced plug with included 6.35 mm-to-3.5 mm adapter

Needs a matching headphone output.

2 sources
Included and optional cables
Detachable 3 m unbalanced cable included; 4.4 mm and XLR-4 cables optional

Optional cables are sold separately; balanced cables need a balanced headphone output.

2 sources

Audio specifications

8 items
Nominal impedance
300 ohm

Nominal impedance; check that your amplifier or audio source can drive this load.

Source
Rated sensitivity
103 dB SPL at 1 kHz, 1 V rms

Rated at 1 kHz with 1 V rms; not directly comparable with dB/mW ratings.

Source
Rated frequency range
10–41,000 Hz (−10 dB)

The manual rates 10–41,000 Hz at −10 dB; Sennheiser's UK feature list quotes 12–41,000 Hz without a threshold.

2 sources
Rated long-term input power
Maximum 500 mW under EN 60-268-7

Maximum input the headphones can handle, not the amplifier power they need.

Source
Driver construction
42 mm dynamic transducer with 38 mm diaphragm and aluminium voice coil; acoustic mesh and hand-paired transducers within stated ±1 dB tolerance

The driver, diaphragm and voice-coil sizes describe different parts.

2 sources
Frequency equalisation
Diffuse-field equalisedSource
Driver diameter
42 mm

Complete transducer diameter; the diaphragm is 38 mm.

Source

Calls & noise control

2 items
Active noise cancellation
Not listed by the manufacturer

The reviewed exact manufacturer sources establish open-back dynamic construction but do not explicitly state whether active noise cancellation is present or absent. Acoustic mesh, an absorber or an omitted ANC control does not establish ANC=false.

2 sources
Microphone
Not listed by the manufacturer

The reviewed exact manufacturer sources do not explicitly establish microphone presence or absence for the supplied configuration. Stereo audio conductors and omitted controls are not proof that no microphone exists.

2 sources

In the box

1 item
Supplied 3.5 mm adapter
Yes

Manual package contents explicitly includes a 6.35 mm-to-3.5 mm stereo adapter.

2 sources

Operating limits

2 items
Static magnetic field at the surface
1.8 mT

Static magnetic field at the headphone surface.

2 sources
Operating temperature
−10 °C to +55 °CSource
Similar products.

Compare with other headphones

More of the nearest checked headphones by key specifications, for a side-by-side comparison.

Sennheiser HD 505 open-back over-ear headphones in black with copper accents, three-quarter viewSennheiser HD 505700453 · Copper Edition (black with copper/bronze accents) · wiredCompare the two beyerdynamic DT 990 PRO 250 ohm open-back studio headphones with grey velour ear pads, perspective viewBeyerdynamic DT 990 PRO 250 ohm459038 · 250 ohm · coiled cableCompare the two Sennheiser HD 490 PRO open-back studio headphones, front viewSennheiser HD 490 PRO700286 · HD 490 PRO (standard, not PRO Plus) · wiredCompare the two Sennheiser HD 599 open-back over-ear headphones in ivory with brown headband, three-quarter viewSennheiser HD 599506831 · Ivory · wired (not HD 599 SE)Compare the two Sennheiser HD 560S open-back over-ear headphones in black, three-quarter viewSennheiser HD 560S509144 · Black · wiredCompare the two Sennheiser HD 400 PRO open-back studio headphones in black lying on their side, showing the whole padded headband and attached coiled cableSennheiser HD 400 PRO700047 · HD 400 PRO · wiredCompare the two Sennheiser HD 550 open-back over-ear headphones in black, three-quarter viewSennheiser HD 550700455 · Black · wiredCompare the two beyerdynamic TYGR 300 R open-back gaming headphones in black with velour padsBeyerdynamic TYGR 300 R733016 · 32 ohm · wired gaming headphones (no microphone)Compare the two
See all 213 headphones Product image sources

Chosen by similarity in our catalogue, not by popularity.

Compare more headphones Browse headphones