The ISN Audio Neo 5 ranks #855 out of 1291 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: ISN Audio
Prices on this page were last checked October 16, 2026 at 5:46 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.
As an eBay Partner, we may be compensated if you make a purchase.
#855 ISN Audio Neo 5: $289.00 Penon Audio $289.00 eBay
Pros: A broadly balanced tuning with a preference score of 67 against the Harman target.
Cons: Treble about 4 dB below target from 3 to 10 kHz, which can sound dull or veiled next to brighter headphones. An uneven response, 2.3 dB standard deviation from target.
Is the ISN Audio Neo 5 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 25 points.
Skip it if
- you want the best value: the higher-rated EPZ G10 costs about $265 less.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.28 dB standard deviation |
| Driver Type | Hybrid |
| Drivers | 1 DD + 4 BA (1 x 10mm dynamic driver + 4 Knowles balanced armature) |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 20kHz |
| Harman Preference Score | 67 (median of 5 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 26 ohms |
| Sensitivity | 110 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.1 dB at 30 Hz) |
| Tonal Tilt | -0.92 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -5.1 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 92 out of 100, up from 67.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -0.8 dB | 0.70 |
| High shelf | 10,000 Hz | -3.3 dB | 0.70 |
| Peak | 36 Hz | +0.6 dB | 1.34 |
| Peak | 145 Hz | -3.0 dB | 0.85 |
| Peak | 1,358 Hz | -0.9 dB | 2.03 |
| Peak | 3,101 Hz | +2.1 dB | 5.40 |
| Peak | 4,708 Hz | +4.3 dB | 0.69 |
Neutral target
Set a preamp of -5.1 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 93 out of 100, up from 29.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -9.4 dB | 0.70 |
| High shelf | 10,000 Hz | -3.3 dB | 0.70 |
| Peak | 135 Hz | -3.0 dB | 0.73 |
| Peak | 1,364 Hz | -0.9 dB | 2.12 |
| Peak | 3,100 Hz | +2.1 dB | 5.38 |
| Peak | 4,708 Hz | +4.3 dB | 0.69 |
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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 90 out of 100, up from 8.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -11.8 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 157 Hz | -4.6 dB | 0.69 |
| Peak | 2,526 Hz | +1.1 dB | 6.00 |
| Peak | 3,071 Hz | +6.0 dB | 1.38 |
| Peak | 4,379 Hz | -1.5 dB | 6.00 |
| Peak | 5,848 Hz | +1.8 dB | 3.89 |
Warm target
Set a preamp of -2.7 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 93 out of 100, up from 79.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -0.6 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 140 Hz | -2.9 dB | 0.95 |
| Peak | 3,807 Hz | +2.7 dB | 0.85 |
| Peak | 6,626 Hz | +1.5 dB | 4.40 |
Bass target
Set a preamp of -5.1 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 93 out of 100, up from 74.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.9 dB | 0.70 |
| High shelf | 10,000 Hz | -3.3 dB | 0.70 |
| Peak | 36 Hz | +0.9 dB | 1.22 |
| Peak | 150 Hz | -3.0 dB | 0.92 |
| Peak | 1,354 Hz | -0.9 dB | 1.96 |
| Peak | 3,101 Hz | +2.1 dB | 5.41 |
| Peak | 4,708 Hz | +4.3 dB | 0.69 |
Bright 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 83 out of 100, up from 16.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -9.4 dB | 0.70 |
| Peak | 136 Hz | -3.0 dB | 0.69 |
| Peak | 1,546 Hz | -1.2 dB | 1.37 |
| Peak | 3,573 Hz | +6.0 dB | 1.00 |
| Peak | 5,634 Hz | +3.5 dB | 5.32 |
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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 79 out of 100, up from 62.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +3.6 dB | 0.70 |
| High shelf | 10,000 Hz | +1.2 dB | 0.70 |
| Peak | 36 Hz | +0.7 dB | 1.31 |
| Peak | 127 Hz | -2.0 dB | 1.27 |
| Peak | 1,296 Hz | -1.5 dB | 1.61 |
| Peak | 3,573 Hz | +6.0 dB | 0.95 |
| Peak | 5,578 Hz | +3.2 dB | 5.22 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the ISN Audio Neo 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 5 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 5 measurements from the squig.link databases of dl, iemocean, isaiahse, soundignity and tonedeafmonk. Thanks to each of them for publishing their work.