The Superlux HD 660 Pro 150 Ohm ranks #54 out of 201 total Over-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Superlux
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#54 Superlux HD 660 Pro 150 Ohm: $34 Thomann eBay
Pros: A preference score of 83 in oratory1990’s measurement is remarkable for a budget headphone, with sub-bass and bass about 1 dB above target down to 20 Hz for a full, punchy low end. It rates well above the Koss KPH30i and the AKG K240 Studio. The closed back isolates outside noise, suiting tracking and commuting.
Cons: A 6.1 dB peak near 6.4 kHz can make sibilance and cymbals splashy, and a 7.2 dB dip near 9.4 kHz follows it, so the treble sounds uneven. The 150 ohm impedance means some phones will run out of volume, and at 323 g it is not light.
| Back | Closed |
|---|---|
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 2.24 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 40mm dynamic |
| Form Factor | Over-ear |
| Frequency Response | 10Hz - 30kHz (Manufacturer specified) |
| Harman Preference Score | 83 (measured by oratory1990, via AutoEQ) |
| Impedance | 150 ohms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+1.2 dB at 30 Hz) |
| Tonal Tilt | -0.22 (negative is warmer, positive brighter) |
| Weight | 0.7 lbs (323 g) |
EQ preset to match the Harman target
Set a preamp of -3.7 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.1 dB | 0.70 |
| Peak | 2,024 Hz | -3.9 dB | 3.50 |
| Peak | 52 Hz | -5.2 dB | 1.11 |
| Peak | 144 Hz | -4.3 dB | 4.46 |
| Peak | 104 Hz | +2.9 dB | 3.92 |
| High shelf | 10,000 Hz | -2.8 dB | 0.70 |
| Peak | 6,206 Hz | -8.9 dB | 5.22 |
| Peak | 5,370 Hz | +3.7 dB | 1.39 |
| Peak | 532 Hz | +3.7 dB | 4.78 |
| Peak | 224 Hz | +2.4 dB | 4.96 |
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