Evidence-backed cases for Beyerdynamic MMX 300

Looking for a case for Beyerdynamic MMX 300? Headcase shows 8 evidence-backed options. Most-recorded evidence: Geekria Shield Case for Large-Sized Over-Ear Headphones, Replacement Hard Shell Travel Carrying Bag with Cable Storage, Compatible with HiFiMAN HE 6se, HE 1000 Headsets (Dark Grey) (Listed fit). 8 cases are seller-listed by name.

Evidence refreshed July 2026

Beyerdynamic MMX 300

At a glance

314 g

Buy Beyerdynamic MMX 300

Measured dimensions

Folded footprint: 220 mm wide × 112 mm tall × 150 mm deep; 314 g. Use against seller-stated case internal sizes before buying.

Source: SoundGuys measured dimensions

Most-recorded case

Geekria Shield Case — HiFiMAN HE 6se

Listed fit

Seller-listed

8

Named by a case seller

Evidence-backed

8

Recorded fit sources

Compatible cases

Evidence-backed carrying cases for Beyerdynamic MMX 300

8 results

Geekria Shield Case — HiFiMAN HE 6se

Listed fit

Listed by Geekria as compatible with this headphone.

Geekria Shield Case — HiFiMAN Edition XS

Listed fit

Listed by Geekria as compatible with this headphone.

Geekria Shield Headphones Case — Audio-Technica ATH-R30x

Listed fit

Listed by Geekria as compatible with this headphone.

Geekria Shield Headphones Case — Sennheiser HD 550/505/599/598/560S/559/558/555/400 Pro

Listed fit

Listed by Geekria as compatible with this headphone.

Geekria Shield Headphones Case — Sony WH-1000XM4

Listed fit

Listed by Geekria as compatible with this headphone.

Geekria Shield Case

Listed fit

Listed by seller as compatible with this headphone.

Geekria Shield Case

Listed fit

Listed by seller as compatible with this headphone.

Geekria Shield Case

Listed fit

Listed by seller as compatible with this headphone.

Beyerdynamic MMX 300 case questions

Which case has the most recorded evidence for Beyerdynamic MMX 300?

Geekria Shield Case — HiFiMAN HE 6se has the most recorded evidence on Headcase (seller-listed) (Listed fit). Listed by Geekria as compatible with this headphone.

How many cases fit Beyerdynamic MMX 300?

Headcase lists 8 evidence-backed carrying cases for Beyerdynamic MMX 300. 8 are seller-listed by name.

What does the evidence on Headcase mean?

Each case shown here has traceable fit evidence — for example a seller naming Beyerdynamic MMX 300 on a case listing. Headcase does not publish dimensional guesses or unverified rows. Read the fitment methodology.

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