The Clavelon Delta ranks #230 out of 1118 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
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#230 Clavelon Delta: $29.99 Discontinued eBay
Pros: A broadly balanced tuning with a preference score of 77 against the Harman target.
Cons: Discontinued, so it is mainly found used. Treble about 2 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones.
Is the Clavelon Delta right for you?
Buy it if
- you want the tuning most listeners prefer in blind tests out of the box (Harman score 77).
- your taste runs warm: it scores 87 for that sound.
- you are sensitive to bright or sharp treble (treble sits 2.1 dB below target).
- you want sub-bass rumble that reaches down to 20 Hz.
Skip it if
- you want to buy it new: it is discontinued.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 1.60 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 10mm dynamic |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 28kHz (Manufacturer specified) |
| Harman Preference Score | 77 (median of 6 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 18 ohms |
| Sensitivity | 119 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-1.3 dB at 30 Hz) |
| Tonal Tilt | -0.39 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -3.2 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 Harman match with this EQ: 87 out of 100, up from 77.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.6 dB | 0.70 |
| High shelf | 10,000 Hz | -3.6 dB | 0.70 |
| Peak | 186 Hz | -2.4 dB | 0.74 |
| Peak | 4,450 Hz | +3.2 dB | 1.01 |
Neutral target
Set a preamp of -3.2 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 Neutral match with this EQ: 89 out of 100, up from 43.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -7.9 dB | 0.70 |
| High shelf | 10,000 Hz | -3.6 dB | 0.70 |
| Peak | 186 Hz | -2.4 dB | 0.60 |
| Peak | 4,450 Hz | +3.2 dB | 1.01 |
Studio flat target
Set a preamp of -4.3 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 Studio flat match with this EQ: 88 out of 100, up from 23.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -10.5 dB | 0.70 |
| High shelf | 10,000 Hz | +1.1 dB | 0.70 |
| Peak | 178 Hz | -4.3 dB | 0.73 |
| Peak | 2,773 Hz | +4.2 dB | 1.33 |
| Peak | 8,000 Hz | +1.1 dB | 2.18 |
Warm target
Set a preamp of -1.7 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 Warm match with this EQ: 91 out of 100, up from 87.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.8 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 186 Hz | -2.2 dB | 0.84 |
| Peak | 4,025 Hz | +1.7 dB | 2.90 |
Bass 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 6 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 89 out of 100, up from 73.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +4.4 dB | 0.70 |
| High shelf | 10,000 Hz | -3.6 dB | 0.70 |
| Peak | 23 Hz | +1.0 dB | 1.21 |
| Peak | 187 Hz | -2.4 dB | 0.79 |
| Peak | 4,450 Hz | +3.2 dB | 1.01 |
Bright target
Set a preamp of -5.5 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 Bright match with this EQ: 85 out of 100, up from 31.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.0 dB | 0.70 |
| High shelf | 10,000 Hz | -0.6 dB | 0.70 |
| Peak | 186 Hz | -2.4 dB | 0.59 |
| Peak | 1,384 Hz | -0.9 dB | 3.98 |
| Peak | 3,949 Hz | +1.4 dB | 2.67 |
| Peak | 5,345 Hz | +5.1 dB | 0.87 |
| Peak | 6,808 Hz | -2.4 dB | 6.00 |
V-shaped 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 V-shaped match with this EQ: 80 out of 100, up from 67.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.1 dB | 0.70 |
| High shelf | 10,000 Hz | +0.6 dB | 0.70 |
| Peak | 4,481 Hz | +6.0 dB | 1.12 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Clavelon Delta 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 boizoff, hu-fi, pw, silicagel, soundcheck39 and vortexreviews. Thanks to each of them for publishing their work.