The EUIU UI-05 ranks #546 out of 1061 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: EUIU
Prices on this page were last checked October 15, 2026 at 5:41 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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#546 EUIU UI-05: $99.00 Amazon $99.00 eBay
Pros: A hybrid with coaxial 10mm and 6mm dynamic drivers plus three balanced armatures. Measurements show bass right on the Harman target and full sub-bass to 20 Hz (score 70 across six measurements).
Cons: Treble sits about 3.6 dB below target, a dark, relaxed balance.
Is the EUIU UI-05 right for you?
Buy it if
- you are sensitive to bright or sharp treble (treble sits 3.6 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 19 points.
Skip it if
- you want the best value: the higher-rated EPZ G10 costs about $75 less.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.24 dB standard deviation |
| Driver Type | Hybrid |
| Drivers | 2 x coaxial dynamic + 3 x balanced armature |
| Form Factor | In-ear |
| Harman Preference Score | 70 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 17 ohms |
| Sensitivity | 106 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-0.9 dB at 30 Hz) |
| Tonal Tilt | -0.56 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -6.1 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 89 out of 100, up from 70.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.4 dB | 0.70 |
| High shelf | 10,000 Hz | +1.6 dB | 0.70 |
| Peak | 174 Hz | -2.4 dB | 0.80 |
| Peak | 4,441 Hz | +6.0 dB | 1.32 |
Neutral target
Set a preamp of -6.1 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 91 out of 100, up from 37.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.1 dB | 0.70 |
| High shelf | 10,000 Hz | +1.6 dB | 0.70 |
| Peak | 174 Hz | -2.4 dB | 0.66 |
| Peak | 4,440 Hz | +6.0 dB | 1.32 |
Studio flat 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 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 96 out of 100, up from 18.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.7 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 178 Hz | -4.2 dB | 0.71 |
| Peak | 1,434 Hz | -1.3 dB | 3.38 |
| Peak | 2,773 Hz | +0.9 dB | 3.14 |
| Peak | 3,889 Hz | +6.0 dB | 1.07 |
Warm target
Set a preamp of -5.6 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 90 out of 100, up from 79.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.7 dB | 0.70 |
| Peak | 174 Hz | -2.2 dB | 0.85 |
| Peak | 728 Hz | +1.1 dB | 2.20 |
| Peak | 1,553 Hz | -1.2 dB | 3.17 |
| Peak | 4,381 Hz | +5.4 dB | 2.08 |
| Peak | 5,633 Hz | +1.4 dB | 6.00 |
| Peak | 7,690 Hz | -3.0 dB | 6.00 |
Bass target
Set a preamp of -6.1 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by Speaker Ranking from the median of 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 90 out of 100, up from 70.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.2 dB | 0.70 |
| High shelf | 10,000 Hz | +1.6 dB | 0.70 |
| Peak | 180 Hz | -2.4 dB | 0.86 |
| Peak | 4,441 Hz | +6.0 dB | 1.32 |
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 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 86 out of 100, up from 25.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.1 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 174 Hz | -2.4 dB | 0.60 |
| Peak | 676 Hz | +0.9 dB | 1.93 |
| Peak | 1,670 Hz | -1.4 dB | 1.72 |
| Peak | 3,807 Hz | +6.0 dB | 1.17 |
| Peak | 5,585 Hz | +3.3 dB | 4.94 |
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 6 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 | +4.9 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 30 Hz | +0.6 dB | 1.21 |
| Peak | 150 Hz | -1.1 dB | 1.07 |
| Peak | 1,413 Hz | -1.7 dB | 1.88 |
| Peak | 3,807 Hz | +6.0 dB | 1.09 |
| Peak | 5,581 Hz | +3.1 dB | 5.14 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the EUIU UI-05 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 6 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 6 measurements from the squig.link databases of audioamigo, bassaudio, faxepremium, fernandagunsan, kuping-sensi and soundcheck39. Thanks to each of them for publishing their work.