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HEADPHONES · YOUR NEXT FACE-OFF

Beyerdynamic MMX 300 PRO vs Beyerdynamic DJ 300 PRO X

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

Compared products

YOUR FIRST CHOICE

Beyerdynamic MMX 300 PRO

730670 · black · wired gaming headset

beyerdynamic MMX 300 PRO closed-back gaming headset in black with boom microphone, perspective view
Full product profile Official image
Exact model & source notes

The MMX 300 PRO (article 730670, black) is beyerdynamic's closed-back, around-ear wired gaming headset with a 48-ohm STELLAR.45 dynamic driver and a cardioid condenser boom microphone. It connects by a detachable cable with separate 3.5 mm headphone and microphone plugs, plus an adapter for single combination jacks.

Specifications checked 26 Sept 2026.

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

Manufacturer specifications
WHAT DIFFERS
MicrophoneYesNo
Driver constructionDynamic STELLAR.45 driver45 mm dynamic driver
2.5 mCable length1.5 m
3 of 12 verified differences, in the order listed below. Not a rating.
See the 12 verified differences
THE CONTENDER

Beyerdynamic DJ 300 PRO X

1001619 · DJ 300 PRO X (not CLUB) · wired

beyerdynamic DJ 300 PRO X closed-back DJ headphones with on-ear pads, three-quarter view
Full product profile Official image
Exact model & source notes

The DJ 300 PRO X (article 1001619) is beyerdynamic's closed-back, foldable wired DJ headphone with a 2-in-1 ear pad system: it ships with on-ear pads fitted and over-ear pads in the box. It has a 45 mm dynamic driver at 48 ohms, 20 dBA of rated passive attenuation, and a detachable locking cable that plugs into either ear cup. It weighs 288 g without the cable with the on-ear pads (315 g with over-ear pads).

Specifications checked 27 Sept 2026.

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

Manufacturer specifications

MMX 300 PRO UK & US retailers

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

UK & US price history: no verified listing yet

DJ 300 PRO X UK & US retailers

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

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 SIDE8 topics

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

SELECTED TOPIC
01 / 08

Cable length

Manufacturer-stated cable length. Check whether it is straight or coiled and whether the cable detaches; equal length does not mean an identical connection.

Beyerdynamic DJ 300 PRO X1.5 m

Manufacturer specification · Special cable with coiled and straight sections; beyerdynamic says it extends up to 2.5 m.

Source 1Source 2
Explore the full specifications

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 ↓

12 verified differences, most decision-relevant first. 2 are also drawn in Visual facts above. Missing information stays separate.

Wired / wireless connections

Beyerdynamic MMX 300 PROWired; detachable single-sided 2.5 m cable ending in two 3.5 mm plugs (headphone and microphone), plus a supplied adapter to a single 3.5 mm combination jack
Beyerdynamic DJ 300 PRO XWired; detachable 1.5 m special cable (coiled and straight sections) with locking bayonet connector at the headphone, angled gold-plated 3.5 mm stereo jack and screw-on 6.35 mm adapter
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · The cable connects to the headset with a 5-pole jack plug.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

Check the exact configuration and source conditions for your use.

Microphone

In Visual facts
Beyerdynamic MMX 300 PROYes
Beyerdynamic DJ 300 PRO XNo
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · Cardioid back-electret condenser boom microphone; boom approx. 190 mm.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · The page lists 'Without Remote'; no microphone is listed in the specifications or supplied accessories.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)

Check the exact configuration and source conditions for your use.

Driver construction

Beyerdynamic MMX 300 PRODynamic STELLAR.45 driver
Beyerdynamic DJ 300 PRO X45 mm dynamic driver
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · beyerdynamic's driver name; a diameter is not stated in the sources read.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

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

Cable length

In Visual facts
Beyerdynamic MMX 300 PRO2.5 m
Beyerdynamic DJ 300 PRO X1.5 m
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · Special cable with coiled and straight sections; beyerdynamic says it extends up to 2.5 m.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)

Check the exact configuration and source conditions for your use.

Rated total harmonic distortion

Beyerdynamic MMX 300 PRO<0.05% at 500 Hz
Beyerdynamic DJ 300 PRO XOn-ear: 0.05%; over-ear: 0.07% (at 500 Hz)
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)

These published limits can use different input voltages, loudness levels and standards. They cannot establish lower distortion in matched listening conditions.

Earpads

Beyerdynamic MMX 300 PROVelour, replaceable (spare part 1000502); headband pad also replaceable
Beyerdynamic DJ 300 PRO XSweat-resistant leatherette ('Softskin'); one on-ear and one over-ear pair supplied, replaceable
Sources

Check the exact configuration and source conditions for your use.

Show 6 more verified differences

Rated frequency range

Beyerdynamic MMX 300 PRO5–40,000 Hz
Beyerdynamic DJ 300 PRO X5–35,000 Hz
Sources

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

Ambient noise attenuation

Beyerdynamic MMX 300 PRO18 dBA
Beyerdynamic DJ 300 PRO X20 dBA (passive)
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · Passive attenuation rated by beyerdynamic.

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · Not active noise cancellation or hearing protection.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)

Check the exact configuration and source conditions for your use.

Rated sensitivity

Beyerdynamic MMX 300 PRO96 dB SPL at 1 mW / 500 Hz
Beyerdynamic DJ 300 PRO XOn-ear: 115 dB SPL (1 mW / 500 Hz), 122 dB SPL (1 V / 500 Hz); over-ear: 109 dB SPL (1 mW / 500 Hz), 117 dB SPL (1 V / 500 Hz)
Sources

Keep the frequency and voltage or power reference attached. Sensitivity describes output for an input, not sound quality; dB/V and dB/mW are different measures.

Weight without cable

Beyerdynamic MMX 300 PRO314 g
Beyerdynamic DJ 300 PRO X288 g
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · The product pages state 314 g without cable; the spec sheet gives 314 g without stating the basis.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — official North America store page and technical databeyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · Without cable, with the factory-fitted on-ear pads; 315 g with the supplied over-ear pads.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)

A size or weight trade-off; it does not establish the better product.

Configuration & compatibility details (1)

Wearing style

Beyerdynamic MMX 300 PROOver-ear (circumaural), closed-back wired gaming headset with boom microphone
Beyerdynamic DJ 300 PRO XOn-ear as delivered, convertible to over-ear with the supplied pads (2-in-1); closed-back wired DJ headphones
Sources
Beyerdynamic DJ 300 PRO X

Manufacturer specification · The on-ear pads are fitted in the factory default state; the over-ear pads are included in the package.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)

Both sources describe the same wearing style and acoustic design in different words. The extra wording does not establish a different fit; compare the separately listed fields.

Missing or non-comparable evidence (11)

Active noise cancellation

Beyerdynamic MMX 300 PRONot verified
Beyerdynamic DJ 300 PRO XNo
Sources
Beyerdynamic MMX 300 PRO

The reviewed exact sources do not explicitly establish active noise cancellation absence. Preserve separately sourced acoustic design and passive attenuation; they cannot turn omitted ANC into a false capability. · Manufacturer specification

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · Isolation is passive (rated 20 dBA); no active noise cancellation is listed.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)

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

Battery life

Beyerdynamic MMX 300 PRONot verified
Beyerdynamic DJ 300 PRO XNot required: passive wired headphones powered by the audio source
Sources
Beyerdynamic MMX 300 PRO

The reviewed exact sources do not explicitly establish battery life or that no battery is required for operation. A wired/dynamic audio path, omitted charger or Battery included N is not an explicit operating-power requirement. The microphone’s separately documented AB supply of 2–9 V/0.6 mA remains known; it does not establish every power requirement of the whole headset. · Manufacturer specification

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · Passive headphones with no battery or charging.

beyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)

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

Cable arrangement

Beyerdynamic MMX 300 PRONot verified
Beyerdynamic DJ 300 PRO XDetachable, locking cable that can be connected to the left or right ear cup
Sources
Beyerdynamic MMX 300 PRO

No source recorded for this side.

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

Supplied plug and adapter

Beyerdynamic MMX 300 PRONot verified
Beyerdynamic DJ 300 PRO XGold-plated 3.5 mm stereo jack (angled) with screw-on 6.35 mm (1/4-inch) adapter; locking bayonet connector at the headphone end
Sources
Beyerdynamic MMX 300 PRO

No source recorded for this side.

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

In the box

Beyerdynamic MMX 300 PRONot verified
Beyerdynamic DJ 300 PRO XHeadphones, 1 pair of on-ear and 1 pair of over-ear pads, 1.5 m special cable (coiled and straight), 6.35 mm (1/4-inch) jack adapter, drawstring bag, quick start guide
Sources
Beyerdynamic MMX 300 PRO

No source recorded for this side.

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

Construction

Beyerdynamic MMX 300 PRONot verified
Beyerdynamic DJ 300 PRO XFoldable design; ear-cup cover caps customisable in selected countries
Sources
Beyerdynamic MMX 300 PRO

No source recorded for this side.

Beyerdynamic DJ 300 PRO X

Manufacturer specification · Cover-cap personalisation via beyerdynamic's MANUFAKTUR online configurator is only available in selected countries.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)

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

Microphone specifications

Beyerdynamic MMX 300 PROCardioid back-electret condenser; 20–20,000 Hz; 21.6 mV/Pa at 1 kHz; max. SPL 121 dB; 13 mm capsule; boom approx. 190 mm
Beyerdynamic DJ 300 PRO XNot verified
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

No source recorded for this side.

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

Platform compatibility

Beyerdynamic MMX 300 PROPlayStation, Xbox, Nintendo Switch and smartphones via cable; PC via separate headphone and microphone plugs
Beyerdynamic DJ 300 PRO XNot verified
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · Analogue 3.5 mm connection only; no USB or wireless connection is listed.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

No source recorded for this side.

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

Serviceability

Beyerdynamic MMX 300 PRONot verified
Beyerdynamic DJ 300 PRO XModular: ear pads, cable, ear caps and headband can be replaced individually; ear-cup cover caps can be customised in selected countries
Sources
Beyerdynamic MMX 300 PRO

No source recorded for this side.

Beyerdynamic DJ 300 PRO X

Manufacturer specification · Cover-cap personalisation via beyerdynamic's MANUFAKTUR online configurator is only available in selected countries.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)

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

2 shared fields have 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.

YOUR CHOICE

Beyerdynamic MMX 300 PRO

Select a feature to check your fit.

YOUR CHOICE

Beyerdynamic DJ 300 PRO X

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 MMX 300 PRO

What it brings

  • The analogue connection with a supplied combination-jack adapter lets the same headset plug into a PC's separate audio jacks or the combination jack of a console, tablet or phone.
    Manufacturer source Manufacturer source
  • The boom microphone is a cardioid condenser with a published 20–20,000 Hz range and sensitivity, so its pickup can be checked against other headsets' specifications.
    Manufacturer source

What to check

  • Ambient noise attenuation is rated at 18 dBA. The supplied audio cable uses separate 3.5 mm headphone and microphone plugs, plus a combination-jack adapter.
    Manufacturer source Manufacturer source
  • Official sources disagree on the inline remote: the spec sheet mentions a cable with an integrated remote control, while the product page lists the headset as without remote.
    Manufacturer source Manufacturer source

Beyerdynamic DJ 300 PRO X

What it brings

What to check

COMPARE THE DETAILS

Full specifications

How we verify
26 of 26 specifications Sources in each row
Source-backed specifications for Beyerdynamic MMX 300 PRO and Beyerdynamic DJ 300 PRO X
SpecificationBeyerdynamic MMX 300 PROBeyerdynamic DJ 300 PRO X
Wearing styleDifferent
Sources
Beyerdynamic DJ 300 PRO X

Manufacturer specification · The on-ear pads are fitted in the factory default state; the over-ear pads are included in the package.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)
Over-ear (circumaural), closed-back wired gaming headset with boom microphoneOn-ear as delivered, convertible to over-ear with the supplied pads (2-in-1); closed-back wired DJ headphones
Weight without cableDifferent
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · The product pages state 314 g without cable; the spec sheet gives 314 g without stating the basis.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — official North America store page and technical databeyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · Without cable, with the factory-fitted on-ear pads; 315 g with the supplied over-ear pads.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)
314 g288 g
Acoustic design
Sources
Closed-backClosed-back
Headband pressureDifferent
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
5.5 NOn-ear: 6 N; over-ear: 7 N
EarpadsDifferent
Sources
Velour, replaceable (spare part 1000502); headband pad also replaceableSweat-resistant leatherette ('Softskin'); one on-ear and one over-ear pair supplied, replaceable
Serviceability
Sources
Beyerdynamic MMX 300 PRO

No source recorded.

Beyerdynamic DJ 300 PRO X

Manufacturer specification · Cover-cap personalisation via beyerdynamic's MANUFAKTUR online configurator is only available in selected countries.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)
Not providedModular: ear pads, cable, ear caps and headband can be replaced individually; ear-cup cover caps can be customised in selected countries
Construction
Sources
Beyerdynamic MMX 300 PRO

No source recorded.

Beyerdynamic DJ 300 PRO X

Manufacturer specification · Cover-cap personalisation via beyerdynamic's MANUFAKTUR online configurator is only available in selected countries.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)
Not providedFoldable design; ear-cup cover caps customisable in selected countries
Wired / wireless connectionsDifferent
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · The cable connects to the headset with a 5-pole jack plug.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Wired; detachable single-sided 2.5 m cable ending in two 3.5 mm plugs (headphone and microphone), plus a supplied adapter to a single 3.5 mm combination jackWired; detachable 1.5 m special cable (coiled and straight sections) with locking bayonet connector at the headphone, angled gold-plated 3.5 mm stereo jack and screw-on 6.35 mm adapter
Battery life
Sources
Beyerdynamic MMX 300 PRO

The reviewed exact sources do not explicitly establish battery life or that no battery is required for operation. A wired/dynamic audio path, omitted charger or Battery included N is not an explicit operating-power requirement. The microphone’s separately documented AB supply of 2–9 V/0.6 mA remains known; it does not establish every power requirement of the whole headset. · Manufacturer specification

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · Passive headphones with no battery or charging.

beyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)
Not listed by the manufacturerNot required: passive wired headphones powered by the audio source
Cable lengthDifferent
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · Special cable with coiled and straight sections; beyerdynamic says it extends up to 2.5 m.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)
2.5 m1.5 m
Platform compatibility
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · Analogue 3.5 mm connection only; no USB or wireless connection is listed.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

No source recorded.

PlayStation, Xbox, Nintendo Switch and smartphones via cable; PC via separate headphone and microphone plugsNot provided
Supplied plug and adapter
Sources
Beyerdynamic MMX 300 PRO

No source recorded.

Not providedGold-plated 3.5 mm stereo jack (angled) with screw-on 6.35 mm (1/4-inch) adapter; locking bayonet connector at the headphone end
Cable arrangement
Sources
Beyerdynamic MMX 300 PRO

No source recorded.

Not providedDetachable, locking cable that can be connected to the left or right ear cup
Driver constructionDifferent
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · beyerdynamic's driver name; a diameter is not stated in the sources read.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Dynamic STELLAR.45 driver45 mm dynamic driver
Nominal impedance
Sources
48 ohm48 ohm
Rated frequency rangeDifferent
Sources
5–40,000 Hz5–35,000 Hz
Rated sensitivityDifferent
Sources
96 dB SPL at 1 mW / 500 HzOn-ear: 115 dB SPL (1 mW / 500 Hz), 122 dB SPL (1 V / 500 Hz); over-ear: 109 dB SPL (1 mW / 500 Hz), 117 dB SPL (1 V / 500 Hz)
Rated total harmonic distortionDifferent
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
<0.05% at 500 HzOn-ear: 0.05%; over-ear: 0.07% (at 500 Hz)
Power handlingDifferent
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · As printed in the specification sheet (EN 60 268-7).

beyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)
30 mW10 mW
Driver diameter
Sources
Beyerdynamic MMX 300 PRO

No source recorded.

Not provided45 mm
Maximum sound pressure level
Sources
Beyerdynamic MMX 300 PRO

No source recorded.

Not providedOn-ear: 122 dB SPL; over-ear: 117 dB SPL
MicrophoneDifferent
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · Cardioid back-electret condenser boom microphone; boom approx. 190 mm.

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · The page lists 'Without Remote'; no microphone is listed in the specifications or supplied accessories.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)
YesNo
Active noise cancellation
Sources
Beyerdynamic MMX 300 PRO

The reviewed exact sources do not explicitly establish active noise cancellation absence. Preserve separately sourced acoustic design and passive attenuation; they cannot turn omitted ANC into a false capability. · Manufacturer specification

beyerdynamic MMX 300 PRO — official product page and technical data (global store)beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · Isolation is passive (rated 20 dBA); no active noise cancellation is listed.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)
Not listed by the manufacturerNo
Ambient noise attenuationDifferent
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification · Passive attenuation rated by beyerdynamic.

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

Manufacturer specification · Not active noise cancellation or hearing protection.

beyerdynamic DJ 300 PRO X — global product page and technical databeyerdynamic DJ 300 PRO X / DJ 300 PRO X CLUB — English specification sheet (E2, 10.25)
18 dBA20 dBA (passive)
Microphone specifications
Sources
Beyerdynamic MMX 300 PRO

Manufacturer specification

beyerdynamic MMX 300 PRO — spec sheet E2/MMX 300 PRO (06.24)
Beyerdynamic DJ 300 PRO X

No source recorded.

Cardioid back-electret condenser; 20–20,000 Hz; 21.6 mV/Pa at 1 kHz; max. SPL 121 dB; 13 mm capsule; boom approx. 190 mmNot provided
In the box
Sources
Beyerdynamic MMX 300 PRO

No source recorded.

Not providedHeadphones, 1 pair of on-ear and 1 pair of over-ear pads, 1.5 m special cable (coiled and straight), 6.35 mm (1/4-inch) jack adapter, drawstring bag, quick start guide
First product manufacturer sourceSecond product manufacturer source
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Impedance
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Cable length
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Prices & product profile
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Impedance
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Cable length
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Prices & product profile
beyerdynamic MMX 330 PRO open-back gaming headset in black with boom microphone

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Impedance
48 Ω
Cable length
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Wearing style
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Prices & product profile

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.