HEADPHONES · YOUR NEXT FACE-OFF

Beyerdynamic AVENTHO Y vs Sennheiser HD 300 PROtect

Real specs. Clear sources.Exact models · UK & US buying links

Compared products

YOUR FIRST CHOICE

Beyerdynamic AVENTHO Y

1002671 · Liquid Black · wireless ANC over-ear

Full product profile Official image

Exact model & source notes

The AVENTHO Y (article 1002671, Liquid Black) is beyerdynamic's foldable, closed-back wireless over-ear headphone with active noise cancellation and a transparency mode. It has a 45 mm dynamic driver, Bluetooth 6.0 with multipoint (SBC and AAC), two integrated ENC call microphones, a 5-band app equaliser and a user-replaceable battery rated at up to 90 hours without ANC and 60 hours with it. It weighs 316 g.

Specifications checked 27 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

WHAT DIFFERS

Active noise cancellationYesNo

Rated frequency range20–20,000 Hz6–25,000 Hz

Operating temperature−10 to +50 °C−15 °C to +55 °C

3 of 11 verified differences, in the order listed below. Not a rating.

See the 11 verified differences

THE CONTENDER

Sennheiser HD 300 PROtect

506898 · HD 300 PROtect (with ActiveGard) · wired

Full product profile Official image

Exact model & source notes

The HD 300 PROtect (article 506898) is the HD 300 PRO closed-back, around-ear monitoring headphone with Sennheiser's switchable ActiveGard limiter, which limits peaks above 110 dB. It shares the HD 300 PRO's passive attenuation (rated up to 32 dB), 64 Ω impedance, approx. 297 g weight without cable and replaceable pads, headband padding and cable. It is passive, with no microphone or active noise cancellation. Sennheiser lists a two-year warranty.

Specifications checked 27 Sept 2026.

Amazon links open search results. Check the exact variant, current price and availability with the retailer.

Manufacturer specifications

Beyerdynamic AVENTHO Y UK & US retailers

UK & US price history: no verified listing yet

Sennheiser HD 300 PROtect UK & US retailers

UK & US price history: no verified listing yet

Search links open retailer results, not a matched listing; eBay listings are checked daily. As an Amazon Associate I earn from qualifying purchases. As an eBay Partner, we may be compensated if you make a purchase.

THE DIFFERENCES, MADE VISIBLE

Visual facts

Differences first. Select a topic for its graphic, sources and conditions.

How to read this comparison

Manufacturer facts for the exact models shown. Not a quality rating or a test result.
“Different” means the known values differ, not that one is better.
Missing or conflicting evidence is marked and never counts as a difference. Source chips hold each fact’s sources and conditions.

FEATURES SIDE BY SIDE6 topics

Yes and No describe the listed feature. Missing evidence stays unverified.

SELECTED TOPIC

01 / 06

Microphone

A built-in microphone matters for calls and voice chat. An audio-only headphone connection does not supply a microphone channel.

Beyerdynamic AVENTHO YYes

Manufacturer specification · Two integrated microphones with ENC; a META VOICE boom microphone is an optional accessory.

Source 1

Sennheiser HD 300 PROtectNo

Manufacturer specification · Monitoring headphones; no microphone is listed in the specifications or package contents.

Source 1 Source 2

Choose your must-haves

Start with your listening environment. Open and closed earcups suit different surroundings. A closed back is not the same as active noise cancellation. Check the exact cable and headphone output. We do not turn impedance, driver size or unpaired lab results into a sound-quality score.

WHAT CHANGES BETWEEN THEM?

Key differences

Full specifications ↓

11 verified differences, most decision-relevant first. 1 is also drawn in Visual facts above. Missing information stays separate.

Wired / wireless connections

Beyerdynamic AVENTHO YBluetooth 6.0 with multipoint; USB-C port (beyerdynamic lists the supplied USB-C to USB-C cable type as 'USB-C / audio cable')

Sennheiser HD 300 PROtectWired; exchangeable 1.5 m cable with 3.5 mm jack on Sennheiser's system connector, and supplied 6.3 mm (1/4") stereo jack adapter

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification · An optional upgrade package adds a USB-C dongle and boom microphone; it is not in the standard box.

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

Manufacturer specification · The box list names a 1.5 m cable; the specification sheet and quick guide give approx. 1.55 m.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check the exact configuration and source conditions for your use.

Active noise cancellation

Beyerdynamic AVENTHO YYes

Sennheiser HD 300 PROtectNo

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification · No attenuation figure is published.

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

Manufacturer specification · Attenuation is passive: the page lists 'Noise cancellation (db) Max 32 dB (passive)' and no battery. ActiveGard is a peak limiter, not noise cancellation.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check the exact configuration and source conditions for your use.

Microphone

In Visual facts

Beyerdynamic AVENTHO YYes

Sennheiser HD 300 PROtectNo

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification · Two integrated microphones with ENC; a META VOICE boom microphone is an optional accessory.

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

Manufacturer specification · Monitoring headphones; no microphone is listed in the specifications or package contents.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check the exact configuration and source conditions for your use.

Battery life

Beyerdynamic AVENTHO YUp to 90 hours without ANC; up to 60 hours with ANC

Sennheiser HD 300 PROtectNot required: passive wired headphones powered by the audio source

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification · The specification sheet says 'up to'; the product page's technical data says 'More than 90 hours' and 'More than 60 hours' with ANC. The battery is user-replaceable.

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

Manufacturer specification · The product page lists 'Battery included: N'.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data

Manufacturer claims for the stated mode and equipment. Read each test condition; this is not measured everyday battery life.

Driver construction

Beyerdynamic AVENTHO Y45 mm dynamic driver

Sennheiser HD 300 PROtectDynamic transducers with precision diaphragms

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

Manufacturer specification · Sennheiser does not state the transducer diameter on the pages and documents read.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check whether the diameter describes the complete transducer or only its diaphragm. Different labels and driver sizes do not establish better sound.

Earpads

Beyerdynamic AVENTHO YInterchangeable, magnetically attached; optional velour ear pads in black/grey

Sennheiser HD 300 PROtectViscoelastic; replaceable

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check the exact configuration and source conditions for your use.

Show 5 more verified differences

Rated frequency range

Beyerdynamic AVENTHO Y20–20,000 Hz

Sennheiser HD 300 PROtect6–25,000 Hz

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

Manufacturer specification · No level tolerance is stated.

Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)

Range endpoints need their stated threshold. They do not describe response flatness or prove better bass, detail or sound quality.

In the box

Beyerdynamic AVENTHO YAVENTHO Y headphones, USB-C to USB-C charging cable, soft bag, quick start guide, compliance booklet

Sennheiser HD 300 PROtectHD 300 PROtect headphones, 1.5 m cable with 3.5 mm jack, 6.3 mm (1/4") stereo jack adapter, quick guide

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data

Check the exact configuration and source conditions for your use.

Operating temperature

Beyerdynamic AVENTHO Y−10 to +50 °C

Sennheiser HD 300 PROtect−15 °C to +55 °C

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

Manufacturer specification · Relative humidity up to 90%.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Check the exact configuration and source conditions for your use.

Beyerdynamic AVENTHO YNot verified

Sennheiser HD 300 PROtect64 ohm

Sources

Beyerdynamic AVENTHO Y

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

App features

Beyerdynamic AVENTHO Ybeyerdynamic app: customise music playback and device controls, 5-band equaliser, over-the-air firmware updates

Sennheiser HD 300 PROtectNot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Bluetooth codecs

Beyerdynamic AVENTHO YSBC, AAC

Sennheiser HD 300 PROtectNot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Bluetooth version and profiles

Beyerdynamic AVENTHO YBluetooth 6.0; HFP, A2DP, AVRCP

Sennheiser HD 300 PROtectNot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Cable arrangement

Beyerdynamic AVENTHO YNot verified

Sennheiser HD 300 PROtectExchangeable cable on Sennheiser's system connector; Sennheiser describes a coiled cable that filters structure-borne noise at the earpiece

Sources

Beyerdynamic AVENTHO Y

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Cable length

Beyerdynamic AVENTHO YNot verified

Sennheiser HD 300 PROtect1.55 m

Sources

Beyerdynamic AVENTHO Y

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification · Approximate; the box list names the cable as 1.5 m.

Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Charge time

Beyerdynamic AVENTHO Y1 hour full charge; 5 minutes gives 6 hours of playtime

Sennheiser HD 300 PROtectNot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Charging

Beyerdynamic AVENTHO YUSB-C

Sennheiser HD 300 PROtectNot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification · Charging temperature range 0 to +45 °C.

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Contact pressure

Beyerdynamic AVENTHO YNot verified

Sennheiser HD 300 PROtectApprox. 6 N

Sources

Beyerdynamic AVENTHO Y

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated total harmonic distortion

Beyerdynamic AVENTHO YNot verified

Sennheiser HD 300 PROtect<0.1% at 1 kHz, 94 dB SPL

Sources

Beyerdynamic AVENTHO Y

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification

Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Driver diameter

Beyerdynamic AVENTHO Y45 mm

Sennheiser HD 300 PROtectNot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Rated power

Beyerdynamic AVENTHO YNot verified

Sennheiser HD 300 PROtect500 mW

Sources

Beyerdynamic AVENTHO Y

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification · The datasheet labels this 'Power rating'; the product page lists the same figure as 'Power consumption (Amp)'.

Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO | HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Construction

Beyerdynamic AVENTHO YFoldable, with aluminium yoke and round ear cups

Sennheiser HD 300 PROtectNot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Beyerdynamic AVENTHO YNot verified

Sennheiser HD 300 PROtectSwitchable ActiveGard limiter that limits peaks above 110 dB; recess for the fontanelle for pressure distribution and wearing comfort

Sources

Beyerdynamic AVENTHO Y

No source recorded for this side.

Sennheiser HD 300 PROtect

Manufacturer specification · Sennheiser states that the HD 300 PROtect's switchable ActiveGard hearing protection satisfies international directives on industrial safety and noise control.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Transparency mode

Beyerdynamic AVENTHO YYes

Sennheiser HD 300 PROtectNot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

Wireless range

Beyerdynamic AVENTHO YUp to 20 m

Sennheiser HD 300 PROtectNot verified

Sources

Beyerdynamic AVENTHO Y

Manufacturer specification

beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26)

Sennheiser HD 300 PROtect

No source recorded for this side.

Evidence is missing or conflicting on at least one side. This is not a verified difference.

1 shared field has the same recorded value.

YOUR HEADPHONES. YOUR RULES.

Check against your must-haves

Feature matching for the features you select. It doesn’t rate sound or comfort.

Start with your listening setup.

Choose a starting point, then fine-tune your must-haves.

FINE-TUNE THE DETAILS

Your essentials.

These shortcuts select the features shown above. Check the fit against your own equipment and listening space.

A feature match describes the selected requirements. It doesn’t rate sound or comfort.

Open-back designFor a quiet listening spaceClosed-back designAn enclosed outer earcupDetachable cableUnplug the cable at the headphonesBuilt-in microphoneFor calls and voice chatActive noise cancellationNot the same as a closed back

YOUR CHOICE

Beyerdynamic AVENTHO Y

Select a feature to check your fit.

YOUR CHOICE

Sennheiser HD 300 PROtect

Select a feature to check your fit.

Feature matching, not a sound-quality score. The specification table links to the evidence for each feature.

WHAT EACH CHOICE ASKS OF YOU

What it brings and what to check

Beyerdynamic AVENTHO Y

What it brings

The battery can be replaced by the user — it sits in the left ear cup behind the magnetic ear cushion — and the ear pads are interchangeable.
Manufacturer source Manufacturer source
beyerdynamic rates up to 60 hours with ANC on, and a 5-minute charge gives 6 hours of playtime.
Manufacturer source Manufacturer source
A USB-C dongle and boom microphone can be added later as an optional upgrade package.
Manufacturer source

What to check

The codec list is SBC and AAC only, and the boom microphone and dongle are not in the standard box.
Manufacturer source Manufacturer source
beyerdynamic publishes no ANC attenuation figure, and its battery wording differs between 'up to' (specification sheet) and 'more than' (product page).
Manufacturer source Manufacturer source

Sennheiser HD 300 PROtect

What it brings

The switchable ActiveGard limiter caps the maximum level at 110 dB SPL when on (123 dB SPL when off), for live, broadcast and high-SPL work.
Manufacturer source Manufacturer source Manufacturer source
Sennheiser rates up to 32 dB of passive ambient-noise attenuation, and the pads, headband padding and cable are replaceable.
Manufacturer source Manufacturer source

What to check

Sennheiser's product page lists an unexplained 550 g 'product weight', while its specification sheet and quick guide give approx. 297 g without cable.
Manufacturer source Manufacturer source Manufacturer source
There is no microphone, wireless connection or active noise cancellation; the ActiveGard limiter is hearing protection against peaks, not noise cancellation.
Manufacturer source Manufacturer source

COMPARE THE DETAILS

Full specifications

How we verify

Differences only

35 of 35 specifications Sources in each row

Source-backed specifications for Beyerdynamic AVENTHO Y and Sennheiser HD 300 PROtect
Specification	Beyerdynamic AVENTHO Y	Sennheiser HD 300 PROtect

Wearing styleDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Over-ear, closed-back foldable wireless headphones	Over-ear (circumaural), closed-back wired monitoring headphones
Acoustic design Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Closed-back	Closed-back
Weight without cableDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification · The product pages state 316 g without cable; the specification sheet gives 316 g without stating the basis. beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification · Approximate, without cable, per the specification sheet and quick guide covering both HD 300 PRO and HD 300 PROtect. The product page separately lists 'Product weight (g) 550' without a basis. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	316 g	297 g
EarpadsDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Interchangeable, magnetically attached; optional velour ear pads in black/grey	Viscoelastic; replaceable
ServiceabilityDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	User-replaceable battery in the left ear cup, behind the magnetically attached ear cushion	Modular: ear pads, headband padding and cable are replaceable
Construction Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect No source recorded.	Foldable, with aluminium yoke and round ear cups	Not provided
Contact pressure Sources Beyerdynamic AVENTHO Y No source recorded. Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	Not provided	Approx. 6 N

Wired / wireless connectionsDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification · An optional upgrade package adds a USB-C dongle and boom microphone; it is not in the standard box. beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification · The box list names a 1.5 m cable; the specification sheet and quick guide give approx. 1.55 m. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Bluetooth 6.0 with multipoint; USB-C port (beyerdynamic lists the supplied USB-C to USB-C cable type as 'USB-C / audio cable')	Wired; exchangeable 1.5 m cable with 3.5 mm jack on Sennheiser's system connector, and supplied 6.3 mm (1/4") stereo jack adapter
Bluetooth version and profiles Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect No source recorded.	Bluetooth 6.0; HFP, A2DP, AVRCP	Not provided
Bluetooth codecs Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect No source recorded.	SBC, AAC	Not provided
Multipoint Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect No source recorded.	Yes — Multipoint Bluetooth 6.0	Not provided
Wireless range Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect No source recorded.	Up to 20 m	Not provided
Battery lifeDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification · The specification sheet says 'up to'; the product page's technical data says 'More than 90 hours' and 'More than 60 hours' with ANC. The battery is user-replaceable. beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification · The product page lists 'Battery included: N'. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data	Up to 90 hours without ANC; up to 60 hours with ANC	Not required: passive wired headphones powered by the audio source
Charge time Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect No source recorded.	1 hour full charge; 5 minutes gives 6 hours of playtime	Not provided
Charging Sources Beyerdynamic AVENTHO Y Manufacturer specification · Charging temperature range 0 to +45 °C. beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect No source recorded.	USB-C	Not provided
Device compatibility Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data Sennheiser HD 300 PROtect No source recorded.	Smartphones, tablets, laptops and desktop computers with Bluetooth; iOS, Android, Windows and macOS	Not provided
Cable arrangement Sources Beyerdynamic AVENTHO Y No source recorded. Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Not provided	Exchangeable cable on Sennheiser's system connector; Sennheiser describes a coiled cable that filters structure-borne noise at the earpiece
Cable length Sources Beyerdynamic AVENTHO Y No source recorded. Sennheiser HD 300 PROtect Manufacturer specification · Approximate; the box list names the cable as 1.5 m. Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	Not provided	1.55 m

Driver constructionDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification · Sennheiser does not state the transducer diameter on the pages and documents read. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	45 mm dynamic driver	Dynamic transducers with precision diaphragms
Driver diameter Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect No source recorded.	45 mm	Not provided
Rated frequency rangeDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification · No level tolerance is stated. Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	20–20,000 Hz	6–25,000 Hz
Hearing protection and comfort Sources Beyerdynamic AVENTHO Y No source recorded. Sennheiser HD 300 PROtect Manufacturer specification · Sennheiser states that the HD 300 PROtect's switchable ActiveGard hearing protection satisfies international directives on industrial safety and noise control. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	Not provided	Switchable ActiveGard limiter that limits peaks above 110 dB; recess for the fontanelle for pressure distribution and wearing comfort
Nominal impedance Sources Beyerdynamic AVENTHO Y No source recorded. Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Not provided	64 ohm
Rated sensitivity Sources Beyerdynamic AVENTHO Y No source recorded. Sennheiser HD 300 PROtect Manufacturer specification · Voltage reference (dB/V), not dB/mW. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Not provided	108 ±3 dB SPL (1 kHz, 1 Vrms)
Maximum sound pressure level Sources Beyerdynamic AVENTHO Y No source recorded. Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	Not provided	123 dB SPL at 1 kHz (ActiveGard off); 110 dB SPL at 1 kHz (ActiveGard on)
Rated total harmonic distortion Sources Beyerdynamic AVENTHO Y No source recorded. Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)Sennheiser HD 300 PRO / PROtect — quick guide (Publ. 07/18)	Not provided	<0.1% at 1 kHz, 94 dB SPL
Rated power Sources Beyerdynamic AVENTHO Y No source recorded. Sennheiser HD 300 PROtect Manufacturer specification · The datasheet labels this 'Power rating'; the product page lists the same figure as 'Power consumption (Amp)'. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Not provided	500 mW

MicrophoneDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification · Two integrated microphones with ENC; a META VOICE boom microphone is an optional accessory. beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification · Monitoring headphones; no microphone is listed in the specifications or package contents. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Yes	No
Microphone type Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect No source recorded.	2 integrated microphones with ENC (environmental noise cancellation); META VOICE boom mic available as an optional accessory	Not provided
Active noise cancellationDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification · No attenuation figure is published. beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification · Attenuation is passive: the page lists 'Noise cancellation (db) Max 32 dB (passive)' and no battery. ActiveGard is a peak limiter, not noise cancellation. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Yes	No
Transparency mode Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect No source recorded.	Yes	Not provided
Ambient noise attenuation Sources Beyerdynamic AVENTHO Y No source recorded. Sennheiser HD 300 PROtect Manufacturer specification · Passive attenuation; not active noise cancellation. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	Not provided	Up to 32 dB (passive)

App features Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — global product page and technical data beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect No source recorded.	beyerdynamic app: customise music playback and device controls, 5-band equaliser, over-the-air firmware updates	Not provided

In the boxDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data	AVENTHO Y headphones, USB-C to USB-C charging cable, soft bag, quick start guide, compliance booklet	HD 300 PROtect headphones, 1.5 m cable with 3.5 mm jack, 6.3 mm (1/4") stereo jack adapter, quick guide

Operating temperatureDifferent Sources Beyerdynamic AVENTHO Y Manufacturer specification beyerdynamic AVENTHO Y — English specification sheet (E1, 07.26) Sennheiser HD 300 PROtect Manufacturer specification · Relative humidity up to 90%. Sennheiser HD 300 PROtect (article 506898) — official UK product page and technical data Sennheiser HD 300 PRO \| HD 300 PROtect — product specification sheet (EN, SP 1184 v1.0)	−10 to +50 °C	−15 °C to +55 °C

First product manufacturer source Second product manufacturer source

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Each record represents an explicitly checked model and configuration. Original import: 5 Sept 2026; this is not its verification date. This is not a list of current offers or a popularity ranking.