The Sony MH755 ranks #486 out of 1118 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Sony
Prices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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#486 Sony MH755: $8 Discontinued eBay
Pros: A broadly balanced tuning with a preference score of 72 against the Harman target. About 4 dB more bass than the Harman target below 150 Hz, for listeners who want a fuller low end.
Cons: Discontinued, so it is mainly found used. An uneven response, 1.9 dB standard deviation from target.
Is the Sony MH755 right for you?
Buy it if
- your taste runs bass-heavy: it scores 86 for that sound.
- you like extra bass (about +4 dB below 150 Hz versus the target).
- you want sub-bass rumble that reaches down to 20 Hz.
- you are happy to use EQ: our preset lifts its Harman match by about 19 points.
Skip it if
- you want to buy it new: it is discontinued.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 1.92 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 9.2mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Harman Preference Score | 72 (measured by oratory1990, via AutoEQ) |
| Impedance | 16 ohms |
| Sensitivity | 100 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+4.5 dB at 30 Hz) |
| Tonal Tilt | -0.90 (negative is warmer, positive brighter) |
| Weight | 0 lbs (6 g) |
EQ Presets
Harman target
Set a preamp of -2.3 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. Predicted Harman match with this EQ: 91 out of 100, up from 72.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -3.9 dB | 0.70 |
| Peak | 754 Hz | +2.3 dB | 1.15 |
| Peak | 198 Hz | -1.7 dB | 1.72 |
| Peak | 6,347 Hz | +2.4 dB | 1.60 |
| Peak | 3,344 Hz | -2.7 dB | 2.40 |
| High shelf | 10,000 Hz | -1.8 dB | 0.70 |
| Peak | 71 Hz | +1.8 dB | 2.00 |
| Peak | 137 Hz | -0.6 dB | 2.41 |
| Peak | 2,106 Hz | +0.7 dB | 3.76 |
| Peak | 1,400 Hz | -0.5 dB | 3.11 |
Neutral target
Set a preamp of -2.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from AutoEQ’s measurement, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 90 out of 100, up from 28.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.7 dB | 0.70 |
| High shelf | 10,000 Hz | -3.1 dB | 0.70 |
| Peak | 186 Hz | -2.7 dB | 0.69 |
| Peak | 746 Hz | +1.2 dB | 2.39 |
| Peak | 1,400 Hz | -0.9 dB | 4.44 |
| Peak | 3,171 Hz | -2.2 dB | 3.58 |
| Peak | 5,978 Hz | +2.4 dB | 4.24 |
Studio flat target
Set a preamp of -2.6 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from AutoEQ’s measurement, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 81 out of 100, up from 9.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -12.0 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 164 Hz | -5.0 dB | 0.66 |
| Peak | 774 Hz | +1.2 dB | 2.71 |
| Peak | 2,350 Hz | +2.6 dB | 4.56 |
| Peak | 3,890 Hz | -1.1 dB | 3.68 |
Warm target
Set a preamp of -0.1 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from AutoEQ’s measurement, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 92 out of 100, up from 77.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -3.9 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 204 Hz | -2.8 dB | 1.21 |
| Peak | 3,278 Hz | -3.3 dB | 1.67 |
Bass target
Set a preamp of -2.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from AutoEQ’s measurement, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 96 out of 100, up from 86.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -0.4 dB | 0.70 |
| High shelf | 10,000 Hz | -3.1 dB | 0.70 |
| Peak | 23 Hz | -1.6 dB | 2.95 |
| Peak | 57 Hz | +1.2 dB | 2.31 |
| Peak | 212 Hz | -3.0 dB | 1.16 |
| Peak | 778 Hz | +1.1 dB | 3.10 |
| Peak | 1,400 Hz | -0.9 dB | 4.36 |
| Peak | 3,168 Hz | -2.2 dB | 3.51 |
| Peak | 5,978 Hz | +2.4 dB | 4.28 |
Bright target
Set a preamp of -5.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from AutoEQ’s measurement, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 86 out of 100, up from 18.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.7 dB | 0.70 |
| High shelf | 10,000 Hz | +0.4 dB | 0.70 |
| Peak | 186 Hz | -2.8 dB | 0.68 |
| Peak | 743 Hz | +1.2 dB | 2.45 |
| Peak | 3,061 Hz | -1.5 dB | 5.44 |
| Peak | 5,568 Hz | +5.1 dB | 2.66 |
V-shaped target
Set a preamp of -5.7 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from AutoEQ’s measurement, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 87 out of 100, up from 75.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| High shelf | 10,000 Hz | +1.5 dB | 0.70 |
| Peak | 59 Hz | +1.4 dB | 1.83 |
| Peak | 217 Hz | -1.7 dB | 1.76 |
| Peak | 1,340 Hz | -1.2 dB | 5.05 |
| Peak | 5,473 Hz | +5.7 dB | 2.53 |
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