In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC MS and Audio-Technica ATH-DSR9BT. 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 | EPOS I SENNHEISER IMPACT MB 660 UC MS | Audio-Technica ATH-DSR9BT |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC | Headphones - Bluetooth - wireless - NFC | |
|---|---|---|---|
| Weight | 227 g | 310 g | EPOS I SENNHEISER IMPACT MB 660 UC MS are lighter than EPOS I SENNHEISER IMPACT MB 660 UC MS headphones. |
| Earpad Material | - | Foam | |
| Headband Material | - | Leather | |
| Recommended Use | Portable electronics, computer | - | |
| Bluetooth Range (Operating Distance) | 25 m | 10 m | EPOS I SENNHEISER IMPACT MB 660 UC MS have a greater operating distance than Audio-Technica ATH-DSR9BT. |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC MS | Audio-Technica ATH-DSR9BT |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | - | |
| Adjustable Headband | - | Yes | |
| Foldable | Yes | Yes | Both headphones can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 4.2 | Both headphones have the same Bluetooth version. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP), Device ID Profile (DIP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Active Noise Cancelling | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC MS are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | Adaptive Noise Control | - | |
| Sound Output Mode | Stereo | Stereo | |
| Built-in Decoders | - | Pure Digital Drive | |
| Frequency Response | 17 - 23000 Hz | 5 - 45000 Hz | Audio-Technica ATH-DSR9BT offer a larger frequency range than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| Total Harmonic Distortion (THD) | 0.5% | - | |
| Sensitivity | 118 dB | 97 dB/mW | EPOS I SENNHEISER IMPACT MB 660 UC MS have higher sensitivity than Audio-Technica ATH-DSR9BT. |
| Impedance | 46 Ohm | 38 Ohm | |
| Diaphragm | - | 45 mm | |
| Features | - | Bluetooth aptX technology |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC MS | Audio-Technica ATH-DSR9BT |
|---|
| Form Factor | - | Built-in | |
|---|---|---|---|
| Microphone Technology | - | Condenser | |
| Microphone Operation Mode | - | Omni-directional | |
| Frequency Response | 150 - 6800 Hz | 50 - 4000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC MS offer a larger microphone frequency range than Audio-Technica ATH-DSR9BT. |
| Sensitivity | - | -44 dB |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT MB 660 UC MS | Audio-Technica ATH-DSR9BT |
|---|
| Controls | - | Volume, microphone on/off |
|---|
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC MS | Audio-Technica ATH-DSR9BT |
|---|
| Cable Type | Audio cable Micro-USB cable |
USB charge cable - 2 m |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC MS | Audio-Technica ATH-DSR9BT |
|---|
| Battery Type | Headset battery rechargeable | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Life | 30 hours | 15 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC MS lasts longer on a single charge than the Audio-Technica ATH-DSR9BT. |
| Standby Time | 360 hours | 1000 hours | Audio-Technica ATH-DSR9BT have longer standby time than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| Charging Time | 3 hours | 5 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC MS recharge faster than EPOS I SENNHEISER IMPACT MB 660 UC MS. |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC MS | Audio-Technica ATH-DSR9BT |
|---|
| Transmission Range | 25 m | 10 m | EPOS I SENNHEISER IMPACT MB 660 UC MS have greater transmission range than Audio-Technica ATH-DSR9BT. |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC MS | Audio-Technica ATH-DSR9BT |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | Hard case | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | Limited warranty - 2 years |
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