The Hidizs MM2 ranks #1093 out of 1398 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Hidizs
Prices on this page were last checked October 19, 2026 at 10:32 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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#1093 Hidizs MM2: $79.00 Discontinued eBay
Pros: A dynamic plus planar hybrid with full sub bass to 20 Hz and bass about 3 dB above target, for a warm, full low end, while presence from 2 to 5 kHz sits right on target so vocals stay clear.
Cons: Upper bass is nearly 4 dB above target, which thickens the sound, and a 7 dB dip around 5.3 to 5.9 kHz followed by a 5 dB peak near 7.9 kHz makes the treble uneven. Low 104 dB sensitivity needs more volume, and it is discontinued.
Is the Hidizs MM2 right for you?
Buy it if
- you like extra bass (about +3 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 23 points.
Skip it if
- you want to buy it new: it is discontinued.
| Released | 2022 (4 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 2.69 dB standard deviation |
| Driver Type | Hybrid (1 dynamic + 1 planar magnetic) |
| Drivers | 1 x 10.2mm dynamic + 1 x 6mm magnetostatic |
| Form Factor | In-ear |
| Frequency Response | 20 Hz - 40 kHz |
| Harman Preference Score | 62 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 18 ohms |
| Sensitivity | 104 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.2 dB at 30 Hz) |
| Tonal Tilt | -0.86 (negative is warmer, positive brighter) |
EQ Presets
Harman 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 the median of 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 85 out of 100, up from 62.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -2.8 dB | 0.70 |
| High shelf | 10,000 Hz | +1.5 dB | 0.70 |
| Peak | 174 Hz | -4.7 dB | 0.79 |
| Peak | 2,341 Hz | -3.0 dB | 2.16 |
| Peak | 5,438 Hz | +6.0 dB | 3.72 |
Neutral 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 the median of 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 86 out of 100, up from 24.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.4 dB | 0.70 |
| High shelf | 10,000 Hz | +1.5 dB | 0.70 |
| Peak | 174 Hz | -4.5 dB | 0.70 |
| Peak | 2,343 Hz | -3.0 dB | 2.20 |
| Peak | 5,438 Hz | +6.0 dB | 3.72 |
Studio flat target
Set a preamp of -5.4 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 87 out of 100, up from 8.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -12.0 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 162 Hz | -6.9 dB | 0.73 |
| Peak | 798 Hz | +1.5 dB | 2.31 |
| Peak | 2,049 Hz | -1.4 dB | 5.28 |
| Peak | 3,809 Hz | -1.8 dB | 6.00 |
| Peak | 5,449 Hz | +5.7 dB | 3.81 |
Warm target
Set a preamp of -3.9 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 85 out of 100, up from 68.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -2.6 dB | 0.70 |
| High shelf | 10,000 Hz | -1.2 dB | 0.70 |
| Peak | 167 Hz | -4.5 dB | 0.82 |
| Peak | 2,557 Hz | -3.8 dB | 1.53 |
| Peak | 5,450 Hz | +5.3 dB | 6.00 |
| Peak | 7,873 Hz | -3.5 dB | 6.00 |
Bass 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 the median of 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 86 out of 100, up from 71.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.0 dB | 0.70 |
| High shelf | 10,000 Hz | +1.5 dB | 0.70 |
| Peak | 174 Hz | -4.7 dB | 0.82 |
| Peak | 2,340 Hz | -3.0 dB | 2.14 |
| Peak | 5,438 Hz | +6.0 dB | 3.72 |
Bright target
Set a preamp of -6.5 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 85 out of 100, up from 14.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.4 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 81 Hz | -0.8 dB | 2.14 |
| Peak | 174 Hz | -4.5 dB | 0.69 |
| Peak | 798 Hz | +1.6 dB | 1.83 |
| Peak | 2,239 Hz | -2.9 dB | 2.92 |
| Peak | 4,617 Hz | +1.7 dB | 6.00 |
| Peak | 5,226 Hz | +6.0 dB | 2.65 |
V-shaped target
Set a preamp of -6.5 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 4 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 82 out of 100, up from 63.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.6 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 23 Hz | +1.0 dB | 1.17 |
| Peak | 162 Hz | -3.3 dB | 0.87 |
| Peak | 682 Hz | +1.2 dB | 2.09 |
| Peak | 2,185 Hz | -2.4 dB | 2.94 |
| Peak | 4,553 Hz | +1.6 dB | 6.00 |
| Peak | 5,226 Hz | +6.0 dB | 2.41 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Hidizs MM2 measures across the audible range, against the Harman in-ear target that most listeners prefer in blind tests. Where the line sits above the target that range sounds louder (more bass, brighter treble), below it quieter. The curve is the median of 4 independent measurements, so one odd sample or rig cannot skew it, and both lines are shifted so their 500 Hz to 2 kHz average sits at 0 dB.
Measurement data: median of 4 measurements from the squig.link databases of achoreviews, hobbytalk, pw and soundignity. Thanks to each of them for publishing their work.