The Sony IER-M7 ranks #666 out of 865 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Sony
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#666 Sony IER-M7 Discontinued eBay
Pros: Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural. It uses 4 x balanced armature with an easy 24 ohm load.
Cons: Discontinued, so it is mainly found used. Presence sits about 5.9 dB low with a 9.6 dB dip near 6.6 kHz, so vocals and instruments lose some bite. A 5 dB peak near 11.9 kHz can make cymbals and sibilance sound sharp. Sub-bass is 3 dB short at 30 Hz, so deep bass lacks rumble. A Harman score of 60 places it in the lower part of the in-ear rankings.
| Released | 2018 (8 years ago) |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.96 dB standard deviation |
| Driver Type | Balanced armature |
| Drivers | 4 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 5Hz - 40kHz |
| Harman Preference Score | 60 (measured by oratory1990, via AutoEQ) |
| Impedance | 24 ohms |
| Sensitivity | 103 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-3.0 dB at 30 Hz) |
| Tonal Tilt | -0.83 (negative is warmer, positive brighter) |
| Weight | 0 lbs (9 g) |
EQ preset to match the Harman target
Set a preamp of -6.0 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 | +0.6 dB | 0.70 |
| Peak | 188 Hz | -4.0 dB | 0.61 |
| Peak | 6,336 Hz | +6.1 dB | 1.58 |
| Peak | 2,882 Hz | +2.4 dB | 3.21 |
| Peak | 20 Hz | +0.4 dB | 2.48 |
| High shelf | 10,000 Hz | -1.4 dB | 0.70 |
| Peak | 850 Hz | +0.7 dB | 2.36 |
| Peak | 1,294 Hz | -0.7 dB | 2.51 |
| Peak | 4,251 Hz | +1.3 dB | 6.00 |
| Peak | 4,849 Hz | -0.8 dB | 6.00 |
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