In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC and RIG 400 PRO HC. 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 | RIG 400 PRO HC |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headset - wired - 3.5 mm jack | |
|---|---|---|---|
| Weight | 227 g | - | |
| Dimensions & Weight Details | - | 210 g | |
| Recommended Use | Portable electronics, computer | Game console, portable electronics | |
| Bluetooth Range (Operating Distance) | 25 m | - |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC | RIG 400 PRO HC |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Dynamic | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC 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), Device ID Profile (DIP) | - | |
| Bluetooth Audio Codec | SBC, aptX | - | |
| Active Noise Cancelling | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC are equipped with active noice cancellation. |
| Active Noise Cancelling Technology | NoiseGard active noise compensation | - | |
| Noise Isolating | - | Yes | RIG 400 PRO HC are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 17 - 23000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC offer a larger frequency range than RIG 400 PRO HC. |
| Max Input Power | - | 40 mW | |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 118 dB | 111 dB | EPOS I SENNHEISER IMPACT MB 660 UC have higher sensitivity than RIG 400 PRO HC. |
| Impedance | 46 Ohm | 32 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC | RIG 400 PRO HC |
|---|
| Form Factor | Built-in | Headset microphone | |
|---|---|---|---|
| Type | - | Boom | |
| Microphone Operation Mode | - | Uni-directional | |
| Frequency Response | 150 - 6800 Hz | 100 - 10000 Hz | RIG 400 PRO HC offer a larger microphone frequency range than EPOS I SENNHEISER IMPACT MB 660 UC. |
| Sensitivity | - | -45 dBV/Pascal | |
| Signal-To-Noise Ratio | - | 42 dB | |
| Microphones Included | 3 | - |
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC | RIG 400 PRO HC |
|---|
| Cable Type | Audio cable Micro-USB cable |
Headset cable - 1.5 cm | |
|---|---|---|---|
| Cable Length | - | 1.5 m |
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC | RIG 400 PRO HC |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | - | |
|---|---|---|---|
| Battery Capacity | 700 mAh | - | |
| Battery Life | 30 hours | - | |
| Standby Time | 360 hours | - | |
| Charging Time | 3 hours | - |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC | RIG 400 PRO HC |
|---|
| Transmission Range | 25 m | - |
|---|
| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC | RIG 400 PRO HC |
|---|
| Connector Type | - | Headset (mini-phone stereo 3.5 mm 4-pole) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC | RIG 400 PRO HC |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | - | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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