Sennheiser HD 660S2 vs Sony INZONE H9
Which one should you buy?
Who leads where?
- WearingSennheiser HD 660S2
Wins are counted from the official values in the table below; the BUY / CONSIDER / WAIT call comes from each product's own decision box. We do not predict prices.
 SennheiserSennheiser HD 660S2No reviews yet |  SonySony INZONE H9No reviews yet | |
|---|---|---|
| Audio | ||
| Driver size | 38mm | 40mm |
| Driver type | Open, dynamic | Closed, dynamic |
| Frequency response | 8 - 41500 Hz | 5Hz - 20000Hz (JEITA) |
| Impedance | 300 ohm | No data |
| Sensitivity | 104 dB (1 kHz, 1 Vrms) | No data |
| Noise cancelling | ||
| Active noise cancelling | No data | Yes |
| Ambient sound mode | No data | Yes |
| Spatial Audio | No data | 360 Spatial Sound |
| Microphone mute | No data | Flip the microphone up |
| Connectivity | ||
| Bluetooth | No data | 5.0 |
| 2.4 GHz wireless | No data | 2.4 GHz |
| Wireless range | No data | 10m |
| Plug type | 6.3 mm jack plug, 4.4 mm balanced plug | No data |
| Battery | ||
| Battery Life (hours) | No data | 32 |
| Battery Life Mode | No data | Noise cancelling off |
| Charge time (hours) | No data | 3.5 |
| Fast Charging Claim | No data | 10 minutes of charge for 1 hour of listening |
| Wearing | ||
| Weight | 260 g | 330g |
| Wearing style | Circumaural | Circumaural |
| Cable length | 1.8m | No data |
Sennheiser HD 660S2 leads on 1 of 1 compared specs.
This table is based on manufacturers official specifications. Winning on paper does not always mean a difference in everyday use.