In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC and AKG Y400. 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 | AKG Y400 |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 227 g | 170 g | AKG Y400 are lighter than EPOS I SENNHEISER IMPACT MB 660 UC headphones. |
| Colour | - | Black | Blue | Rose gold | Green | |
| Recommended Use | Portable electronics, computer | - | |
| Bluetooth Range (Operating Distance) | 25 m | - |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC | AKG Y400 |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | - | |
| Foldable | Yes | - | EPOS I SENNHEISER IMPACT MB 660 UC can be folded. |
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | AKG Y400 have a more advanced version of Bluetooth than EPOS I SENNHEISER IMPACT MB 660 UC. |
| 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 | - | |
| Sound Output Mode | Stereo | - | |
| Frequency Response | 17 - 23000 Hz | 20 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC offer a larger frequency range than AKG Y400. |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 118 dB | 106 dB/mW | EPOS I SENNHEISER IMPACT MB 660 UC have higher sensitivity than AKG Y400. |
| Impedance | 46 Ohm | 32 Ohm |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC | AKG Y400 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Frequency Response | 150 - 6800 Hz | - | |
| Microphones Included | 3 | - |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT MB 660 UC | AKG Y400 |
|---|
| Controls | - | Power on/off, volume control |
|---|
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC | AKG Y400 |
|---|
| Cable Type | Audio cable Micro-USB cable |
USB-C charge cable - detachable |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC | AKG Y400 |
|---|
| Battery Type | Headset battery rechargeable - lithium polymer | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 700 mAh | - | |
| Battery Life | 30 hours | 20 hour(s) | EPOS I SENNHEISER IMPACT MB 660 UC lasts longer on a single charge than the AKG Y400. |
| Battery Life Details | - | Continuous playback: up to 20 hours Continuous talk: up to 20 hours |
|
| Standby Time | 360 hours | - | |
| Charging Time | 3 hours | - | |
| Included Qty | - | 1 |
| WIRELESS LINK | EPOS I SENNHEISER IMPACT MB 660 UC | AKG Y400 |
|---|
| Transmission Range | 25 m | - |
|---|
| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC | AKG Y400 |
|---|
| Connector Type | - | USB (power only) (USB Type-C) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC | AKG Y400 |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | - | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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