The Custom Art FIBAE 5 ranks #1090 out of 1398 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Custom Art
Prices on this page were last checked October 19, 2026 at 10:32 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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#1090 Custom Art FIBAE 5: $999.00 Linsoul $999.00 eBay
Pros: A tribrid measured by nine reviewers, with sub bass about 3.7 dB above target and reaching fully to 20 Hz, so it has strong rumble. Bass and lower mids stay within 3 dB of target and the 1 to 2 kHz range is right on target.
Cons: Presence sits about 4 dB low with an 8 dB dip near 3.6 kHz, so vocals and guitars lose clarity, and the overall tilt is warm. Its preference score of 62 is ordinary for $999, and the ThieAudio Monarch MKIII scores far higher at the same price.
Is the Custom Art FIBAE 5 right for you?
Buy it if
- you are sensitive to bright or sharp treble (treble sits 2.5 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 30 points.
Skip it if
- you want the best value: the higher-rated EPZ G10 costs about $975 less.
| Released | 2022 (4 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 2.67 dB standard deviation |
| Driver Type | Tribrid |
| Drivers | 1 x 10mm dynamic + 2 x balanced armature + 2 x planar |
| Form Factor | In-ear |
| Frequency Response | 10 Hz - 21 kHz |
| Harman Preference Score | 62 (median of 9 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 10 ohms |
| Sensitivity | 109 dB @1kHz @0.1V |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+2.4 dB at 30 Hz) |
| Tonal Tilt | -1.13 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -6.0 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 9 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 92 out of 100, up from 62.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -3.1 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 247 Hz | -3.1 dB | 0.88 |
| Peak | 3,490 Hz | +6.0 dB | 1.43 |
| Peak | 5,426 Hz | +2.4 dB | 6.00 |
Neutral target
Set a preamp of -6.0 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 9 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 91 out of 100, up from 22.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.3 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 230 Hz | -2.9 dB | 0.68 |
| Peak | 3,490 Hz | +6.0 dB | 1.43 |
| Peak | 5,426 Hz | +2.4 dB | 6.00 |
Studio flat 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 9 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 82 out of 100, up from 1.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.9 dB | 0.70 |
| High shelf | 10,000 Hz | -3.6 dB | 0.70 |
| Peak | 193 Hz | -4.7 dB | 0.57 |
| Peak | 2,574 Hz | +2.6 dB | 4.26 |
| Peak | 3,430 Hz | +6.0 dB | 1.35 |
| Peak | 4,382 Hz | -2.7 dB | 6.00 |
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 9 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 87 out of 100, up from 71.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -2.8 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 3,389 Hz | +5.6 dB | 2.65 |
Bass target
Set a preamp of -6.0 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 9 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 93 out of 100, up from 71.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +0.7 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 57 Hz | +1.0 dB | 2.04 |
| Peak | 250 Hz | -3.1 dB | 0.92 |
| Peak | 3,489 Hz | +6.0 dB | 1.43 |
| Peak | 5,426 Hz | +2.4 dB | 6.00 |
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 9 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 86 out of 100, up from 11.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.3 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 232 Hz | -2.9 dB | 0.64 |
| Peak | 1,740 Hz | -1.1 dB | 2.67 |
| Peak | 2,982 Hz | +2.9 dB | 4.63 |
| Peak | 5,016 Hz | +5.9 dB | 0.70 |
| Peak | 6,651 Hz | -2.4 dB | 6.00 |
V-shaped 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 9 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 86 out of 100, up from 62.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +1.4 dB | 0.70 |
| High shelf | 10,000 Hz | -4.9 dB | 0.70 |
| Peak | 23 Hz | -1.4 dB | 3.98 |
| Peak | 63 Hz | +0.9 dB | 1.61 |
| Peak | 266 Hz | -1.8 dB | 0.94 |
| Peak | 1,381 Hz | -1.1 dB | 1.84 |
| Peak | 2,917 Hz | +2.8 dB | 4.34 |
| Peak | 5,016 Hz | +6.0 dB | 0.67 |
| Peak | 6,750 Hz | -2.6 dB | 6.00 |
- Links
- Reviews, Comparisons and Sound Samples
Frequency Response
How the Custom Art FIBAE 5 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 9 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 9 measurements from the squig.link databases of aden, animagus, harutohiroki, hbb, jaytiss, precog, tgx78, tonedeafmonk and vsg. Thanks to each of them for publishing their work.
