Amplifiers for the Sennheiser HD 660S
Dynamic · over-ear · specs from measured data
Impedance
150 Ω rated
216.75 Ω measured
Sensitivity
104.0 dB/mW rated
103.45 dB/mW measured
Driver
Dynamic
over-ear
Measured by Reference Audio Analyzer (https://reference-audio-analyzer.pro/en/report/hp/sennheiser-hd-660s.php) · Source ↗
14 ample
2 adequate
1 insufficient
✓ Ample headroom 14
| Amplifier | Headroom | Damping | Type |
|---|---|---|---|
| Schiit Lyr 3 | Ample 23.0 dB | ✓ ok | Desktop Tube |
| Schiit Valhalla 2 | Ample 22.5 dB | ✓ ok | Desktop Tube |
| Schiit Asgard 3 | Ample 21.2 dB | ✓ ok | Desktop Ss |
| JDS Labs Atom Amp 2 | Ample 21.0 dB | ✓ ok | Desktop Ss |
| Schiit Magni Heretic | Ample 19.6 dB | ✓ ok | Desktop Ss |
| Bottlehead Crack 1.1 | Ample 18.7 dB | ⚠ caution | Desktop Tube |
| Schiit Magnius | Ample 18.2 dB | ✓ ok | Desktop Ss |
| Little Dot MkII | Ample 18.2 dB | ? unknown | Desktop Tube |
| Topping L30 | Ample 17.9 dB | ✓ ok | Desktop Ss |
| Topping A90 | Ample 17.4 dB | ✓ ok | Desktop Ss |
| Topping DX3 Pro+ | Ample 17.4 dB | ✓ ok | Dac Amp |
| Darkvoice 336SE | Ample 17.4 dB | ✓ ok | Desktop Tube |
| Drop THX AAA 789 | Ample 16.5 dB | ✓ ok | Desktop Ss |
| FiiO K7 | Ample 14.9 dB | ✓ ok | Dac Amp |
◑ Adequate headroom 2
| Amplifier | Headroom | Damping | Type |
|---|---|---|---|
| Schiit Fulla 4 | Adequate 9.5 dB | ✓ ok | Dac Amp |
| iFi Zen DAC V2 | Adequate 9.0 dB | ? unknown | Dac Amp |
✗ Insufficient 1
| Amplifier | Headroom | Damping | Type |
|---|---|---|---|
| Apple USB-C to 3.5mm | Insufficient -1.4 dB | ✓ ok | Dongle |