In depth comparison and review of EPOS I SENNHEISER IMPACT SC 660 TC and Sennheiser HD 458BT. 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 SC 660 TC | Sennheiser HD 458BT |
|---|
| Product Type | Headset - wired - Easy Disconnect | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Weight | 113 g | 238 g | EPOS I SENNHEISER IMPACT SC 660 TC are lighter than EPOS I SENNHEISER IMPACT SC 660 TC headphones. |
| Colour | Black with silver | Black | |
| Earpad Material | Leatherette | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser HD 458BT |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Ear Cups Type | - | Closed | |
| Foldable | - | Yes | Sennheiser HD 458BT can be folded. |
| Connectivity Technology | Wired | Wireless | |
| Wireless Technology | - | Bluetooth | |
| Bluetooth Version | - | Bluetooth 5.0 | |
| Bluetooth Profiles | - | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | |
| Bluetooth Audio Codec | - | SBC, AAC, aptX, apt-X LL | |
| Active Noise Cancelling | - | Yes | Sennheiser HD 458BT are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 50 - 18000 Hz | 18 - 22000 Hz | Sennheiser HD 458BT offer a larger frequency range than EPOS I SENNHEISER IMPACT SC 660 TC. |
| Total Harmonic Distortion (THD) | - | <0.3% | |
| Sensitivity | 103 dB | - | |
| Impedance | 200 Ohm | - | |
| Max Sound Pressure | - | 108 dB | |
| Magnet Material | Neodymium | - | |
| Features | - | Voice control |
| MICROPHONE | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser HD 458BT |
|---|
| Form Factor | Headset microphone | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Frequency Response | 150 - 6800 Hz | 80 - 6000 Hz | EPOS I SENNHEISER IMPACT SC 660 TC offer a larger microphone frequency range than Sennheiser HD 458BT. |
| CABLE | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser HD 458BT |
|---|
| Cable Type | Headset cable - 1 m | Audio cable - detachable USB-C charge cable - detachable |
|---|
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser HD 458BT |
|---|
| Battery Type | - | Headphone battery rechargeable - lithium polymer | |
|---|---|---|---|
| Battery Capacity | - | 600 mAh | |
| Battery Life | - | 30 hours | |
| Charging Time | - | 2 hours |
| CONNECTIONS | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser HD 458BT |
|---|
| Connector Type | Headset (EasyDisconnect) | - |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser HD 458BT |
|---|
| Included Accessories | Carrying pouch, leatherette ear pads, cable clip | Carrying case | |
|---|---|---|---|
| Service & Support | Limited warranty - 3 years | - |
cs
sk
de
it
es
fr
hu
pt
ru
pl
br
ro
