In depth comparison and review of beyerdynamic DT 990 PRO and Sennheiser HMDC 27. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | beyerdynamic DT 990 PRO | Sennheiser HMDC 27 |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - wired | |
|---|---|---|---|
| Weight | 250 g | 240 g | Sennheiser HMDC 27 are lighter than beyerdynamic DT 990 PRO headphones. |
| Colour | Black | - | |
| Recommended Use | - | Professional audio |
| SOUND QUALITY | beyerdynamic DT 990 PRO | Sennheiser HMDC 27 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Open | Closed | |
| Connectivity Technology | Wired | Wired | |
| Active Noise Cancelling | - | Yes | Sennheiser HMDC 27 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 5 - 35000 Hz | 8 - 18000 Hz | beyerdynamic DT 990 PRO offer a larger frequency range than Sennheiser HMDC 27. |
| Max Input Power | 100 mW | - | |
| Total Harmonic Distortion (THD) | 0.2% | <0.1% | Sennheiser HMDC 27 have lower total harmonic distortion than beyerdynamic DT 990 PRO. |
| Sensitivity | 96 dB | - | |
| Impedance | 250 Ohm | - | |
| Max Sound Pressure | - | 128 dB |
| MICROPHONE | beyerdynamic DT 990 PRO | Sennheiser HMDC 27 |
|---|
| Type | - | Boom | |
|---|---|---|---|
| Microphone Technology | - | Dynamic | |
| Microphone Operation Mode | - | Hypercardioid | |
| Frequency Response | - | 40 - 18000 Hz |
| CABLE | beyerdynamic DT 990 PRO | Sennheiser HMDC 27 |
|---|
| Cable Type | Headphones cable - 3 m | - | |
|---|---|---|---|
| Cable Length | 3 m | - | |
| Plated Connector | Gold | - |
| FEATURES | beyerdynamic DT 990 PRO | Sennheiser HMDC 27 |
|---|
| Features | - | EPOS ActiveGard |
|---|
| CONNECTIONS | beyerdynamic DT 990 PRO | Sennheiser HMDC 27 |
|---|
| Connector Type | Headphones (mini-phone 3.5mm) | - |
|---|
| OTHERS | beyerdynamic DT 990 PRO | Sennheiser HMDC 27 |
|---|
| Included Accessories | 6.3 mm (1/4") stereo adapter | Wind screen, cable clip, headband padding |
|---|
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