Side by side comparison and review of Sennheiser HD 4.20s and EPOS I SENNHEISER IMPACT SC 660 TC. Compare design, sound quality and other key specifications and features to simplify the choice of your perfect headphones. Our goal is to make it easier for you to decide on the headphones that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Sennheiser HD 4.20s | EPOS I SENNHEISER IMPACT SC 660 TC |
|---|
| Product Type | Headphones - wired - 3.5 mm jack | Headset - wired - Easy Disconnect | |
|---|---|---|---|
| Weight | - | 113 g | |
| Colour | Black | Black with silver | |
| Earpad Material | - | Leatherette |
| SOUND QUALITY | Sennheiser HD 4.20s | EPOS I SENNHEISER IMPACT SC 660 TC |
|---|
| Headphones Form Factor | Full size | On-ear | |
|---|---|---|---|
| Ear Cups Type | Closed | - | |
| Connectivity Technology | Wired | Wired | |
| Noise Isolating | Yes | - | Sennheiser HD 4.20s are equipped with a noise isolating function. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | - | 50 - 18000 Hz | |
| Sensitivity | - | 103 dB | |
| Impedance | - | 200 Ohm | |
| Magnet Material | - | Neodymium |
| MICROPHONE | Sennheiser HD 4.20s | EPOS I SENNHEISER IMPACT SC 660 TC |
|---|
| Form Factor | - | Headset microphone | |
|---|---|---|---|
| Type | On-cable | Boom | |
| Microphone Operation Mode | Omni-directional | - | |
| Frequency Response | - | 150 - 6800 Hz | |
| Sensitivity | -44 dBV/Pascal | - |
| REMOTE CONTROL | Sennheiser HD 4.20s | EPOS I SENNHEISER IMPACT SC 660 TC |
|---|
| Controls | 1-button remote | - |
|---|
| CABLE | Sennheiser HD 4.20s | EPOS I SENNHEISER IMPACT SC 660 TC |
|---|
| Cable Type | - | Headset cable - 1 m | |
|---|---|---|---|
| Cable Length | 1.4 m | - | |
| Plated Connector | Gold | - |
| CONNECTIONS | Sennheiser HD 4.20s | EPOS I SENNHEISER IMPACT SC 660 TC |
|---|
| Connector Type | Headphones (mini-phone 3.5 mm 4-pole) | Headset (EasyDisconnect) |
|---|
| OTHERS | Sennheiser HD 4.20s | EPOS I SENNHEISER IMPACT SC 660 TC |
|---|
| Included Accessories | - | Carrying pouch, leatherette ear pads, cable clip | |
|---|---|---|---|
| Service & Support | Limited warranty - parts and labour - 2 years | Limited warranty - 3 years |
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