Audio-Technica ATH-M40x vs Beyerdynamic DT 900 Pro X
A side-by-side look at Audio-Technica ATH-M40x and Beyerdynamic DT 900 Pro X for podcasters: pricing, features, and where each one wins.
Audio-Technica ATH-M40x
Flat-response studio closed-back that detachable cables actually make practical
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Beyerdynamic DT 900 Pro X
Modern open-back with the STELLAR.45 driver and detachable cable - built for the next decade
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Check price on AmazonAt a glance
| Audio-Technica ATH-M40x | Beyerdynamic DT 900 Pro X | |
|---|---|---|
| Starting price | See site | See site |
| Free plan | No | No |
| Free trial | No | No |
| Best for | Podcasters and home studio producers who need accurate closed-back monitoring for tracking and playback | Studio producers who want a modern open-back reference headphone that works without a dedicated amp |
Key features
Audio-Technica ATH-M40x
- Closed-back, over-ear design
- 40mm neodymium dynamic drivers
- 15 Hz - 24 kHz frequency response
- 35 ohm impedance - no amp needed
- Two detachable cables: coiled and straight
- 90-degree swiveling earcups
Beyerdynamic DT 900 Pro X
- 5 Hz - 40 kHz frequency response
- Open-back, over-ear design - NOT for recording
- 45mm STELLAR.45 three-layer driver
- 48 ohm impedance - works without a dedicated amp
- Two detachable cables with locking mini-XLR: 1.8m and 3m
- Handcrafted in Germany with replaceable components
Pros and cons
Audio-Technica ATH-M40x
Pros
- Flatter, more accurate response than the M50x
- Detachable cables extend the headphone's lifespan
- Easy to drive from any interface or laptop
- Durable build with replaceable earpads
Cons
- Earpads run warm during extended sessions
- Non-folding design makes transport bulkier
- Bass extension is limited versus open-back alternatives
Beyerdynamic DT 900 Pro X
Pros
- More neutral tuning than the classic DT 990 Pro
- Low 48-ohm impedance - no amp required
- Detachable cables via locking mini-XLR connector
- Wide, accurate soundstage for mixing and referencing
Cons
- Open-back - bleeds sound, cannot be used for recording
- Heavier than some alternatives at 345g
- Premium price tier versus the DT 990 Pro
The verdict
Choose Audio-Technica ATH-M40x if
Podcasters and home studio producers who need accurate closed-back monitoring for tracking and playback.
The M40x sits in a sweet spot where the price is low enough for beginners and the sonic accuracy is high enough that professionals actually use it for tracking. The flat tuning is genuinely flatter than the more popular M50x,…
Choose Beyerdynamic DT 900 Pro X if
Studio producers who want a modern open-back reference headphone that works without a dedicated amp.
The DT 900 Pro X is what beyerdynamic built when they looked at the DT 990 Pro and said 'same concept, but fix the amp dependency and add a detachable cable.' The STELLAR.45 driver delivers a more controlled, neutral tuning…