Beyerdynamic MMX 300 PRO — Complete Specifications

The Beyerdynamic MMX 300 PRO is a closed-back wired gaming headset featuring 250Ω Tesla neodymium drivers, a detachable cardioid condenser microphone, velour ear pads, and a self-adjusting headband. Made in Germany. Compatible with PC, Mac, PlayStation, Xbox, and Nintendo Switch via 3.5mm or USB. This page covers the complete technical specifications.

Overall Rating

Beyerdynamic MMX 300 PRO — 9.2 / 10 — Best wired gaming headset for audiophile gamers at $380. Reference-grade sound quality, studio-class microphone, and velour + self-adjusting headband make it the top pick for glasses-wearing gamers who won’t compromise on audio or comfort during extended sessions.

Full Specifications

Audio

Driver Technology	Tesla neodymium — high-flux magnet, low-mass diaphragm
Driver Size	45mm
Frequency Response	5Hz – 35kHz
Impedance	250Ω
Sensitivity	102 dB SPL/mW
Sound Signature	Reference / neutral — wide soundstage, controlled bass
Active Noise Cancellation	No (passive closed-back isolation)
Virtual Surround	No (pure analog; use OS-level or platform surround if needed)

Microphone

Microphone Type	Condenser — detachable boom
Mic Pattern	Cardioid (directional — rejects off-axis noise)
Mic Frequency Response	30Hz – 18kHz
Mic Sensitivity	–40 dBV/Pa
Detachable	Yes — locks in place, 1/8″ locking connector

Connectivity

Connection Type	Wired only
Cable (PC)	Detachable — 1.5m cable with dual 3.5mm (headphone + mic split)
Cable (Console/Mobile)	Detachable — 3m cable with single 4-pole 3.5mm CTIA
Connector	Mini-XLR locking at headset, 3.5mm at device end

Platform Compatibility

PC / Mac	Yes — 3.5mm dual jack or USB via DAC (requires amp for full volume at 250Ω)
PlayStation 5 / 4	Yes — 3.5mm to DualSense controller jack (audio + mic)
Xbox Series X/S	Yes — 3.5mm to controller jack
Nintendo Switch	Yes — 3.5mm to Switch jack (handheld) or dock with USB DAC
Mobile / Tablet	Yes — 4-pole 3.5mm cable

Impedance Note

The 250Ω impedance requires a DAC/amplifier for full output volume on consoles and mobile devices. PC sound cards and USB DACs (Fosi Audio BT20A Pro, FiiO KA13, etc.) drive the MMX 300 PRO adequately. Running directly from a PS5 controller jack works but at reduced max volume.

Comfort & Design

Headband	Self-adjusting — no manual size setting required
Ear Cushions	Velour — breathable, glasses-friendly (non-rigid seal)
Fit Style	Over-ear circumaural (closed-back)
Construction	All-metal — aluminum + steel headband, metal ear cups
Weight	~370g
Colors	Black
Origin	Made in Germany (Beyerdynamic factory, Heilbronn)

In-Line Controls

PC Cable Controls	Volume wheel + mic mute button on the PC split cable
Mobile Cable Controls	Volume +/- and call answer/end on 4-pole cable

Warranty

Warranty	2 years (Beyerdynamic)
Spare Parts	Ear pads, cables, and mic boom available separately

Where to Buy

See Also

• Beyerdynamic MMX 300 PRO In-Depth Review
• Best Gaming Headsets for Glasses Wearers