In depth comparison and review of EPOS I SENNHEISER IMPACT MB 660 UC and AKG K72. 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 K72 |
|---|
| Product Type | Headset - Bluetooth - wireless - NFC - USB, 3.5 mm jack | Headphones - wired - 3.5 mm jack | |
|---|---|---|---|
| Weight | 227 g | 200 g | AKG K72 are lighter than EPOS I SENNHEISER IMPACT MB 660 UC headphones. |
| Colour | - | Matte black | |
| Earpad Material | - | Leatherette | |
| Recommended Use | Portable electronics, computer | Professional audio | |
| Bluetooth Range (Operating Distance) | 25 m | - |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT MB 660 UC | AKG K72 |
|---|
| Headphones Form Factor | Full size | Full size | |
|---|---|---|---|
| Headphones Technology | Dynamic | - | |
| Ear Cups Type | Closed | 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 | AKG K72 are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 17 - 23000 Hz | 16 - 20000 Hz | EPOS I SENNHEISER IMPACT MB 660 UC offer a larger frequency range than AKG K72. |
| Max Input Power | - | 200 mW | |
| Total Harmonic Distortion (THD) | <0.5% | - | |
| Sensitivity | 118 dB | 112 dB | EPOS I SENNHEISER IMPACT MB 660 UC have higher sensitivity than AKG K72. |
| Impedance | 46 Ohm | 32 Ohm | |
| Diaphragm | - | 40 mm |
| MICROPHONE | EPOS I SENNHEISER IMPACT MB 660 UC | AKG K72 |
|---|
| Form Factor | Built-in | - | |
|---|---|---|---|
| Frequency Response | 150 - 6800 Hz | - | |
| Microphones Included | 3 | - |
| CABLE | EPOS I SENNHEISER IMPACT MB 660 UC | AKG K72 |
|---|
| Cable Type | Audio cable Micro-USB cable |
Headphones cable - 3 m |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT MB 660 UC | AKG K72 |
|---|
| 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 | AKG K72 |
|---|
| Transmission Range | 25 m | - |
|---|
| CONNECTIONS | EPOS I SENNHEISER IMPACT MB 660 UC | AKG K72 |
|---|
| Connector Type | - | Headphones (mini-phone stereo 3.5 mm) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT MB 660 UC | AKG K72 |
|---|
| Included Accessories | Carrying case, Bluetooth adapter, airplane adapter | 3.5 mm to 6.3 mm adapter | |
|---|---|---|---|
| Service & Support | Limited warranty - 2 years | - |
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