Detailed comparison and review of EPOS I SENNHEISER IMPACT SC 660 TC and Sennheiser PXC 550-II. With our comprehensive overview, you can simply compare design, sound quality, but also other key features of both headphones and easily decide which ones are the right choice for you. Our goal is to help you identify the main differences between products and find the headphones that best fit your needs and expectations.
| DESIGN AND DIMENSIONS | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser PXC 550-II |
|---|
| Product Type | Headset - wired - Easy Disconnect | Headphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | - | 17.4 cm | |
| Width | - | 13.6 cm | |
| Depth | - | 6.3 cm | |
| Weight | 113 g | 227 g | EPOS I SENNHEISER IMPACT SC 660 TC are lighter than EPOS I SENNHEISER IMPACT SC 660 TC headphones. |
| Colour | Black with silver | - | |
| Earpad Material | Leatherette | - | |
| Recommended Use | - | Portable electronics |
| SOUND QUALITY | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser PXC 550-II |
|---|
| Headphones Form Factor | On-ear | Full size | |
|---|---|---|---|
| Headphones Technology | - | Dynamic | |
| Adjustable Headband | - | Yes | |
| Foldable | - | Yes | Sennheiser PXC 550-II 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 PXC 550-II are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 50 - 18000 Hz | 17 - 23000 Hz | Sennheiser PXC 550-II offer a larger frequency range than EPOS I SENNHEISER IMPACT SC 660 TC. |
| Total Harmonic Distortion (THD) | - | <0.5% | |
| Sensitivity | 103 dB | 110 dB | Sennheiser PXC 550-II have higher sensitivity than EPOS I SENNHEISER IMPACT SC 660 TC. |
| Impedance | 200 Ohm | 490 Ohm | |
| Diaphragm | - | 32 mm | |
| Magnet Material | Neodymium | - |
| MICROPHONE | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser PXC 550-II |
|---|
| Form Factor | Headset microphone | Built-in | |
|---|---|---|---|
| Type | Boom | - | |
| Frequency Response | 150 - 6800 Hz | 50 - 10000 Hz | Sennheiser PXC 550-II offer a larger microphone frequency range than EPOS I SENNHEISER IMPACT SC 660 TC. |
| Sensitivity | - | -34 dBV/Pascal | |
| Microphones Included | - | 3 |
| REMOTE CONTROL | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser PXC 550-II |
|---|
| Controls | - | Mute, volume, answer/end, hold, play/pause, next/previous track |
|---|
| CABLE | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser PXC 550-II |
|---|
| Cable Type | Headset cable - 1 m | USB charge cable Audio cable |
|
|---|---|---|---|
| Detachable Cable | - | Yes |
| FEATURES | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser PXC 550-II |
|---|
| Internet of Things (IoT) Compatible | - | Yes | |
|---|---|---|---|
| Intelligent Assistant | - | Siri, Google Assistant, Alexa | |
| Additional Functions | - | Touch panel |
| BATTERY AND CHARGING | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser PXC 550-II |
|---|
| Battery Type | - | Headphone battery rechargeable - lithium | |
|---|---|---|---|
| Battery Life | - | 30 hour(s) | |
| Battery Life Details | - | Continuous playback (noise cancelling ON / cable connection): up to 30 hours Continuous playback (noise cancelling ON / Bluetooth): up to 20 hours |
|
| Charging Time | - | 3 hour(s) |
| CONNECTIONS | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser PXC 550-II |
|---|
| Connector Type | Headset (EasyDisconnect) | Headphones (mini-phone stereo 3.5 mm) USB (micro-USB) |
|---|
| OTHERS | EPOS I SENNHEISER IMPACT SC 660 TC | Sennheiser PXC 550-II |
|---|
| Included Accessories | Carrying pouch, leatherette ear pads, cable clip | Carrying case, airplane adapter | |
|---|---|---|---|
| Compliant Standards | - | MFI | |
| Service & Support | Limited warranty - 3 years | Limited warranty - 2 years |
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