The Monoprice M350 ranks #894 out of 909 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Monoprice
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#894 Monoprice M350 Discontinued eBay
Pros: Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural. It uses 1 x 31mm planar magnetic.
Cons: Discontinued, so it is mainly found used. Presence sits about 14.6 dB low with a 16.7 dB dip near 5.5 kHz, so vocals and instruments lose some bite. A 6 dB peak near 10.9 kHz can make cymbals and sibilance sound sharp. Sub-bass is 11.5 dB short at 30 Hz, so deep bass lacks rumble. A Harman score of 27 places it in the lower part of the in-ear rankings.
| Connection | Wired |
|---|---|
| Deviation From Target | 5.99 dB standard deviation |
| Driver Type | Planar magnetic |
| Drivers | 1 x 31mm planar magnetic |
| Form Factor | In-ear |
| Harman Preference Score | 27 (measured by oratory1990, via AutoEQ) |
| Sub-bass Extension | Falls 6 dB below target at 106 Hz (-11.5 dB at 30 Hz) |
| Tonal Tilt | +0.29 (negative is warmer, positive brighter) |
EQ preset to match the Harman target
Set a preamp of -6.3 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.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +6.1 dB | 0.70 |
| Peak | 1,429 Hz | -7.5 dB | 1.67 |
| Peak | 2,628 Hz | +9.5 dB | 0.60 |
| Peak | 1,012 Hz | -5.5 dB | 0.93 |
| Peak | 403 Hz | -2.1 dB | 0.26 |
| High shelf | 10,000 Hz | -6.8 dB | 0.70 |
| Peak | 6,529 Hz | +4.3 dB | 3.53 |
| Peak | 9,170 Hz | -3.1 dB | 1.07 |
| Peak | 5,334 Hz | +2.0 dB | 1.91 |
| Peak | 3,262 Hz | -1.2 dB | 3.25 |
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