The Tanchjim Ola II ranks #900 out of 1369 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Tanchjim
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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#900 Tanchjim Ola II: 6.99 Linsoul eBay
Pros: A broadly balanced tuning with a preference score of 66 against the Harman target.
Cons: An uneven response, 2.6 dB standard deviation from target.
Is the Tanchjim Ola II right for you?
Buy it if
- 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 25 points.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.58 dB standard deviation |
| Driver Type | Hybrid |
| Drivers | 1 dynamic driver + 1 balanced armature (10mm DMT5 dynamic + PURE Hi balanced armature) |
| Form Factor | In-ear |
| Frequency Response | 8Hz - 48kHz |
| Harman Preference Score | 66 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 30 ohms |
| Sensitivity | 121 dB/Vrms |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.8 dB at 30 Hz) |
| Tonal Tilt | -0.35 (negative is warmer, positive brighter) |
| Weight | 0 lbs (5 g) |
EQ Presets
Harman target
Set a preamp of -3.1 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: 91 out of 100, up from 66.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.8 dB | 0.70 |
| High shelf | 10,000 Hz | -4.4 dB | 0.70 |
| Peak | 23 Hz | +2.1 dB | 1.45 |
| Peak | 81 Hz | -0.9 dB | 2.41 |
| Peak | 176 Hz | -5.5 dB | 0.69 |
| Peak | 336 Hz | -0.8 dB | 2.82 |
| Peak | 816 Hz | +1.3 dB | 3.07 |
| Peak | 3,807 Hz | +0.7 dB | 1.27 |
| Peak | 5,345 Hz | +2.8 dB | 0.77 |
| Peak | 7,548 Hz | -3.7 dB | 6.00 |
Neutral target
Set a preamp of -3.1 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: 92 out of 100, up from 39.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -7.7 dB | 0.70 |
| High shelf | 10,000 Hz | -4.4 dB | 0.70 |
| Peak | 23 Hz | +1.7 dB | 1.95 |
| Peak | 76 Hz | -0.9 dB | 2.21 |
| Peak | 174 Hz | -5.5 dB | 0.64 |
| Peak | 804 Hz | +1.3 dB | 2.75 |
| Peak | 3,807 Hz | +0.7 dB | 1.29 |
| Peak | 5,345 Hz | +2.8 dB | 0.72 |
| Peak | 7,551 Hz | -3.7 dB | 6.00 |
Studio flat target
Set a preamp of -4.4 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 Studio flat match with this EQ: 90 out of 100, up from 19.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.3 dB | 0.70 |
| High shelf | 10,000 Hz | +0.4 dB | 0.70 |
| Peak | 177 Hz | -7.3 dB | 0.69 |
| Peak | 2,958 Hz | +4.4 dB | 1.35 |
| Peak | 7,569 Hz | -2.0 dB | 6.00 |
Warm target
Set a preamp of -3.0 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: 92 out of 100, up from 73.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.0 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 23 Hz | +2.1 dB | 1.45 |
| Peak | 80 Hz | -0.9 dB | 2.43 |
| Peak | 174 Hz | -5.3 dB | 0.70 |
| Peak | 819 Hz | +1.6 dB | 2.77 |
| Peak | 5,345 Hz | +1.3 dB | 1.37 |
| Peak | 7,595 Hz | -3.9 dB | 6.00 |
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 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 92 out of 100, up from 61.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.5 dB | 0.70 |
| High shelf | 10,000 Hz | -4.4 dB | 0.70 |
| Peak | 26 Hz | +1.9 dB | 1.38 |
| Peak | 85 Hz | -0.9 dB | 2.34 |
| Peak | 181 Hz | -5.5 dB | 0.72 |
| Peak | 342 Hz | -0.8 dB | 2.87 |
| Peak | 818 Hz | +1.3 dB | 3.12 |
| Peak | 3,747 Hz | +0.7 dB | 1.31 |
| Peak | 5,345 Hz | +2.8 dB | 0.78 |
| Peak | 7,548 Hz | -3.7 dB | 6.00 |
Bright 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 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 89 out of 100, up from 28.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -7.8 dB | 0.70 |
| High shelf | 10,000 Hz | -0.8 dB | 0.70 |
| Peak | 23 Hz | +1.7 dB | 1.78 |
| Peak | 174 Hz | -5.5 dB | 0.62 |
| Peak | 802 Hz | +1.3 dB | 2.65 |
| Peak | 3,356 Hz | +1.2 dB | 1.99 |
| Peak | 5,345 Hz | +5.6 dB | 1.04 |
| Peak | 6,842 Hz | -2.5 dB | 6.00 |
V-shaped 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 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 87 out of 100, up from 61.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.9 dB | 0.70 |
| Peak | 32 Hz | +1.6 dB | 1.50 |
| Peak | 180 Hz | -4.1 dB | 0.71 |
| Peak | 3,446 Hz | +1.2 dB | 1.63 |
| Peak | 5,345 Hz | +5.6 dB | 0.85 |
| Peak | 6,913 Hz | -3.0 dB | 5.98 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Tanchjim Ola II 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 aftersound, atechreviews, audioamigo, csi-zone, samreviews and soundignity. Thanks to each of them for publishing their work.