In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC and Audeze LCD-4. 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 | Audeze LCD-4 |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headphones - wired - 6.35 mm jack | |
|---|---|---|---|
| Weight | 227 g | - | |
| Body Material | - | Wood | |
| Recommended Use | Portable electronics, computer | - | |
| Bluetooth Range (Operating Distance) | 25 m | - |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC | Audeze LCD-4 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | Planar magnetic | |
| Ear Cups Type | Closed | Open | |
| 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 | - | |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 17 - 23000 Hz | 5 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC offer a larger frequency range than Audeze LCD-4. |
| Total Harmonic Distortion (THD) | <0.5% | 1.0% | EPOS I SENNHEISER IMPACT MB 660 UC have lower total harmonic distortion than EPOS I SENNHEISER IMPACT MB 660 UC. |
| Sensitivity | 118 dB | 97 dB/mW | EPOS I SENNHEISER IMPACT MB 660 UC have higher sensitivity than Audeze LCD-4. |
| Impedance | 46 Ohm | 200 Ohm | |
| Max Sound Pressure | - | 130 dB | |
| Diaphragm | - | 106 mm | |
| Magnet Material | - | Neodymium |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC | Audeze LCD-4 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Frequency Response | 150 - 6800 Hz | - | |
| Microphones Included | 3 | - |
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC | Audeze LCD-4 |
|---|
| Cable Type | Audio cable Micro-USB cable |
Headphones cable - detachable |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC | Audeze LCD-4 |
|---|
| 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 | Audeze LCD-4 |
|---|
| Transmission Range | 25 m | - |
|---|
| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC | Audeze LCD-4 |
|---|
| Connector Type | - | Headphones (phone stereo 6.3 mm) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC | Audeze LCD-4 |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | Travel bag | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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