 | 1.18 in 0.63 in  | |
| Available colors | ||
| Editiorial reviews | ||
| User rating |
 Beyerdynamic DT990 |  Beyerdynamic MMX 300 | |
|---|---|---|
| Sound output | Stereo | Stereo |
| Style | Over-Ear | Over-Ear |
| Connectivity technology | Wired | Wired |
| Headset (integrated/enclosed microphone) | no | yes |
| Beyerdynamic DT990 | Beyerdynamic MMX 300 | |
|---|---|---|
| Colour of product |
|
|
| Acoustic design | Open | Closed |
| Attachment type | Headband | Headband |
| Body material | Plastic |
|
| Foldable | no | yes |
| Noise isolating | no | yes |
| Beyerdynamic DT990 | Beyerdynamic MMX 300 | |
|---|---|---|
| Weight | 10.23 oz | 1.59 oz |
| Beyerdynamic DT990 | Beyerdynamic MMX 300 | |
|---|---|---|
| Channels | 2 | 2 |
| Impedance | 250.0 Ω | 32.0 Ω |
| Sensitivity | < 96 | < 96 |
| Frequency range | 5 - 35000 | 5 - 30000 |
| Total harmonic distortion (THD) | 0.2 % | 0.2 % |
| Maximum input power | 100.0 mW | 100.0 mW |
| Beyerdynamic DT990 | Beyerdynamic MMX 300 | |
|---|---|---|
| Inputs supported |
|
|
| Cable length | 3 | 2.5 |
| 3.5 mm/6.3 mm adapter included | yes | yes |
| Type of connector | 3.5mm | 3.5mm |
| USB | no | yes |
| Beyerdynamic DT990 | Beyerdynamic MMX 300 | |
|---|---|---|
| Noise-canceling | no | yes |
| Beyerdynamic DT990 | Beyerdynamic MMX 300 | |
|---|---|---|
| Battery operated | no | no |
| Pros | ||
|---|---|---|
| Cons |
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