In depth comparison and review of Audio-Technica ATH-DSR9BT 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 | Audio-Technica ATH-DSR9BT | Sennheiser HMDC 27 |
|---|
| Product Type | Headphones - Bluetooth - wireless - NFC | Headset - wired | |
|---|---|---|---|
| Weight | 310 g | 240 g | Sennheiser HMDC 27 are lighter than Audio-Technica ATH-DSR9BT headphones. |
| Earpad Material | Foam | - | |
| Headband Material | Leather | - | |
| Recommended Use | - | Professional audio | |
| Bluetooth Range (Operating Distance) | 10 m | - |
| SOUND QUALITY | Audio-Technica ATH-DSR9BT | Sennheiser HMDC 27 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | - | Closed | |
| Adjustable Headband | Yes | - | |
| Foldable | Yes | - | Audio-Technica ATH-DSR9BT can be folded. |
| Connectivity Technology | Wireless | Wired | |
| Wireless Technology | Bluetooth | - | |
| Bluetooth Version | Bluetooth 4.2 | - | |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Active Noise Cancelling | - | Yes | Sennheiser HMDC 27 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Built-in Decoders | Pure Digital Drive | - | |
| Frequency Response | 5 - 45000 Hz | 8 - 18000 Hz | Audio-Technica ATH-DSR9BT offer a larger frequency range than Sennheiser HMDC 27. |
| Total Harmonic Distortion (THD) | - | <0.1% | |
| Sensitivity | 97 dB/mW | - | |
| Impedance | 38 Ohm | - | |
| Max Sound Pressure | - | 128 dB | |
| Diaphragm | 45 mm | - | |
| Features | Bluetooth aptX technology | - |
| MICROPHONE | Audio-Technica ATH-DSR9BT | Sennheiser HMDC 27 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Technology | Condenser | Dynamic | |
| Microphone Operation Mode | Omni-directional | Hypercardioid | |
| Frequency Response | 50 - 4000 Hz | 40 - 18000 Hz | Sennheiser HMDC 27 offer a larger microphone frequency range than Audio-Technica ATH-DSR9BT. |
| Sensitivity | -44 dB | - |
| REMOTE CONTROL | Audio-Technica ATH-DSR9BT | Sennheiser HMDC 27 |
|---|
| Controls | Volume, microphone on/off | - |
|---|
| CABLE | Audio-Technica ATH-DSR9BT | Sennheiser HMDC 27 |
|---|
| Cable Type | USB charge cable - 2 m | - |
|---|
| FEATURES | Audio-Technica ATH-DSR9BT | Sennheiser HMDC 27 |
|---|
| Features | - | EPOS ActiveGard |
|---|
| BATTERY AND CHARGING | Audio-Technica ATH-DSR9BT | Sennheiser HMDC 27 |
|---|
| Battery Type | Headphone battery rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Life | 15 hour(s) | - | |
| Standby Time | 1000 hours | - | |
| Charging Time | 5 hour(s) | - |
| WIRELESS LINK | Audio-Technica ATH-DSR9BT | Sennheiser HMDC 27 |
|---|
| Transmission Range | 10 m | - |
|---|
| OTHERS | Audio-Technica ATH-DSR9BT | Sennheiser HMDC 27 |
|---|
| Included Accessories | Hard case | Wind screen, cable clip, headband padding | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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