Unique Melody MEST Indigo Review: Ranked #1052 of 1369

Last updated: October 17, 2026

The Unique Melody MEST Indigo ranks #1052 out of 1369 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.

Brand: Unique Melody

Prices on this page were last checked October 17, 2026 at 6:04 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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Unique Melody MEST Indigo - ranked #1052 of 1369 In-Ear Headphones · Editor's rating 3.1/5

#1052 Unique Melody MEST Indigo: $2,699 Discontinued eBay

Newer model: the Unique Melody MEST MKIII, ranked higher, rated 3.4/5. See every Unique Melody MEST generation.

Pros: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.

Cons: Treble about 3 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones. An uneven response, 2.9 dB standard deviation from target. Discontinued.

Is the Unique Melody MEST Indigo right for you?

Buy it if

  • you are sensitive to bright or sharp treble (treble sits 2.8 dB below 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 27 points.

Skip it if

  • you want to buy it new: it is discontinued.
BackClosed
ConnectionWired
Deviation From Target2.85 dB standard deviation
Driver TypeQuadbrid (Dynamic + Balanced Armature + Electrostatic + Bone Conduction)
Drivers10 drivers (1 Dynamic Bass Driver + 4 Balanced Armature Drivers + 4 Electrostatic Tweeters + 1 dBC Dual-Sides Bone Conduction Driver)
Form FactorIn-ear
Frequency Response20Hz - 70kHz
Harman Preference Score63 (median of 3 squig.link measurements, calibrated to AutoEQ)
Impedance13.2 ohms
Sensitivity118 dB
Sub-bass ExtensionWithin 6 dB of target down to 20 Hz (-0.5 dB at 30 Hz)
Tonal Tilt-0.70 (negative is warmer, positive brighter)

EQ Presets

Harman target

Set a preamp of -6.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 90 out of 100, up from 63.

FilterFrequencyGainQ
Low shelf105 Hz-0.3 dB0.70
High shelf10,000 Hz-2.8 dB0.70
Peak207 Hz-1.6 dB0.40
Peak1,096 Hz-1.6 dB3.04
Peak2,379 Hz+3.3 dB2.75
Peak3,893 Hz+6.0 dB1.02
Peak6,990 Hz-3.4 dB2.96

Neutral target

Set a preamp of -6.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 91 out of 100, up from 28.

FilterFrequencyGainQ
Low shelf105 Hz-8.9 dB0.70
High shelf10,000 Hz-2.8 dB0.70
Peak174 Hz-1.7 dB0.40
Peak1,096 Hz-1.7 dB2.89
Peak2,378 Hz+3.3 dB2.75
Peak3,893 Hz+6.0 dB1.01
Peak6,990 Hz-3.4 dB2.96

Studio flat target

Set a preamp of -6.9 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 89 out of 100, up from 10.

FilterFrequencyGainQ
Low shelf105 Hz-11.4 dB0.70
High shelf10,000 Hz+1.2 dB0.70
Peak201 Hz-3.1 dB0.40
Peak425 Hz+1.1 dB2.48
Peak1,127 Hz-1.9 dB2.63
Peak2,443 Hz+6.0 dB1.17
Peak3,315 Hz+0.8 dB1.93
Peak4,060 Hz+4.4 dB3.78
Peak6,729 Hz-2.7 dB3.33

Warm 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 Speaker Ranking from the median of 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 93 out of 100, up from 69.

FilterFrequencyGainQ
High shelf10,000 Hz-6.0 dB0.70
Peak174 Hz-1.6 dB0.64
Peak1,096 Hz-1.4 dB2.73
Peak2,389 Hz+2.8 dB2.42
Peak3,654 Hz+6.0 dB1.48
Peak7,067 Hz-4.5 dB2.79

Bass target

Set a preamp of -6.2 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 91 out of 100, up from 67.

FilterFrequencyGainQ
Low shelf105 Hz+3.5 dB0.70
High shelf10,000 Hz-2.8 dB0.70
Peak204 Hz-1.6 dB0.48
Peak1,096 Hz-1.7 dB2.82
Peak2,379 Hz+3.3 dB2.75
Peak3,893 Hz+6.0 dB1.02
Peak6,990 Hz-3.4 dB2.96

Bright target

Set a preamp of -6.4 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 88 out of 100, up from 19.

FilterFrequencyGainQ
Low shelf105 Hz-8.9 dB0.70
High shelf10,000 Hz+0.4 dB0.70
Peak137 Hz-2.0 dB0.65
Peak1,096 Hz-2.4 dB1.06
Peak2,182 Hz+0.8 dB2.11
Peak2,773 Hz+6.0 dB0.87
Peak4,970 Hz+3.7 dB2.72

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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 84 out of 100, up from 61.

FilterFrequencyGainQ
Low shelf105 Hz+4.1 dB0.70
High shelf10,000 Hz+1.5 dB0.70
Peak1,096 Hz-3.3 dB1.54
Peak2,603 Hz+6.0 dB0.87
Peak5,004 Hz+4.1 dB2.42

Frequency Response

How the Unique Melody MEST Indigo 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 3 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.

Unique Melody MEST IndigoHarman target
Measured frequency response of the Unique Melody MEST Indigo-24-18-12-60+6+12+18dB20501002005001k2k5k10k20k

Measurement data: median of 3 measurements from the squig.link databases of aftersound, eliseaudio and hbb. Thanks to each of them for publishing their work.

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