The iBasso Jr. KLEE ranks #365 out of 1476 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: iBasso
Prices on this page were last checked October 20, 2026 at 10:35 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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#365 iBasso Jr. KLEE: $82 eBay
Pros: A single 10 mm dynamic IEM at about $82 with a preference score of 76 across two measurements. Bass is full to 20 Hz with a 3.1 dB upper bass lift, and the cable comes with swappable 3.5 and 4.4 mm plugs.
Cons: The top octave sits 2.6 dB low with a 5.6 dB dip near 10.3 kHz, so it lacks some air. It is sold mainly in Japan.
Is the iBasso Jr. KLEE right for you?
Buy it if
- you want the tuning most listeners prefer in blind tests out of the box (Harman score 76).
- you want sub-bass rumble that reaches down to 20 Hz.
Skip it if
- you want the best value: the higher-rated QCY HT05 MeloBuds ANC costs about $48 less.
| Released | Feb 2025 (1 year ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 1.99 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 40kHz (Manufacturer specified) |
| Harman Preference Score | 76 (average of 2 squig.link measurements scored separately, calibrated to AutoEQ) |
| Impedance | 22 ohms |
| Sensitivity | 112 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.9 dB at 30 Hz) |
| Tonal Tilt | -0.16 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -3.3 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 89 out of 100, up from 76.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.7 dB | 0.70 |
| High shelf | 10,000 Hz | +0.5 dB | 0.70 |
| Peak | 23 Hz | +1.9 dB | 1.76 |
| Peak | 174 Hz | -4.2 dB | 0.75 |
| Peak | 707 Hz | +1.3 dB | 2.41 |
| Peak | 3,566 Hz | +3.4 dB | 4.68 |
| Peak | 5,230 Hz | -2.4 dB | 6.00 |
Neutral target
Set a preamp of -3.3 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 90 out of 100, up from 46.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -7.8 dB | 0.70 |
| High shelf | 10,000 Hz | +0.5 dB | 0.70 |
| Peak | 151 Hz | -4.2 dB | 0.68 |
| Peak | 719 Hz | +1.3 dB | 2.67 |
| Peak | 3,567 Hz | +3.4 dB | 4.68 |
| Peak | 5,230 Hz | -2.4 dB | 6.00 |
Studio flat target
Set a preamp of -4.8 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 89 out of 100, up from 25.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.4 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 167 Hz | -6.0 dB | 0.73 |
| Peak | 737 Hz | +1.2 dB | 2.60 |
| Peak | 3,173 Hz | +4.6 dB | 3.34 |
| Peak | 3,833 Hz | +1.5 dB | 6.00 |
| Peak | 5,276 Hz | -4.3 dB | 5.27 |
Warm target
Set a preamp of -2.8 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 93 out of 100, up from 76.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.0 dB | 0.70 |
| High shelf | 10,000 Hz | -2.9 dB | 0.70 |
| Peak | 23 Hz | +1.9 dB | 1.93 |
| Peak | 81 Hz | -1.1 dB | 1.98 |
| Peak | 174 Hz | -4.0 dB | 0.77 |
| Peak | 714 Hz | +1.5 dB | 1.88 |
| Peak | 2,125 Hz | -1.8 dB | 2.79 |
| Peak | 3,690 Hz | +2.2 dB | 5.79 |
| Peak | 5,536 Hz | -3.7 dB | 2.60 |
| Peak | 7,653 Hz | -2.1 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 90 out of 100, up from 67.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.5 dB | 0.70 |
| High shelf | 10,000 Hz | +0.5 dB | 0.70 |
| Peak | 24 Hz | +1.8 dB | 1.55 |
| Peak | 174 Hz | -4.2 dB | 0.78 |
| Peak | 3,567 Hz | +3.4 dB | 4.69 |
| Peak | 5,230 Hz | -2.4 dB | 6.00 |
Bright target
Set a preamp of -4.8 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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 86 out of 100, up from 35.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -7.8 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 174 Hz | -4.2 dB | 0.66 |
| Peak | 676 Hz | +1.4 dB | 2.11 |
| Peak | 2,066 Hz | -1.2 dB | 2.23 |
| Peak | 3,838 Hz | +4.7 dB | 2.31 |
| Peak | 6,513 Hz | +1.7 dB | 3.56 |
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 average of 2 independent measurements from squig.link, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 82 out of 100, up from 67.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.0 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 28 Hz | +1.4 dB | 1.47 |
| Peak | 154 Hz | -2.9 dB | 0.82 |
| Peak | 3,879 Hz | +5.1 dB | 1.84 |
| Peak | 6,068 Hz | +2.2 dB | 6.00 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the iBasso Jr. KLEE 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 average of 2 independent measurements, and both lines are shifted so their 500 Hz to 2 kHz average sits at 0 dB.
Measurement data: the average of 2 independent measurements from the squig.link databases of eplv and tonedeafmonk. Thanks to each of them for publishing their work.