The TRN BA8 ranks #991 out of 1369 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: TRN
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.
As an eBay Partner, we may be compensated if you make a purchase.
#991 TRN BA8: 35.00 Discontinued eBay
Pros: A published AutoEQ preset corrects its response toward the Harman target, so a few minutes of EQ setup closes most of the gap.
Cons: An uneven response, 2.8 dB standard deviation from target. Discontinued.
Is the TRN BA8 right for you?
Buy it if
- you are happy to use EQ: our preset lifts its Harman match by about 20 points.
Skip it if
- you want to buy it new: it is discontinued.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.80 dB standard deviation |
| Driver Type | Balanced Armature |
| Drivers | 8 balanced armature drivers per earpiece (1 x 22955 low, 2 x 29689 mid, 2 x 50060 mid, 3 x 30095 high) |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz |
| Harman Preference Score | 64 (median of 5 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 20 ohms |
| Sensitivity | 100 dB/mW |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.4 dB at 30 Hz) |
| Tonal Tilt | +0.55 (negative is warmer, positive brighter) |
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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 84 out of 100, up from 64.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +3.1 dB | 0.70 |
| Peak | 190 Hz | -4.5 dB | 0.83 |
| Peak | 869 Hz | +2.0 dB | 1.97 |
| Peak | 2,062 Hz | -5.7 dB | 4.05 |
| Peak | 3,807 Hz | -1.5 dB | 2.84 |
| Peak | 6,244 Hz | +3.1 dB | 6.00 |
Neutral 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 median of 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 87 out of 100, up from 58.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -5.4 dB | 0.70 |
| Peak | 186 Hz | -4.5 dB | 0.76 |
| Peak | 861 Hz | +2.1 dB | 1.88 |
| Peak | 2,062 Hz | -5.7 dB | 4.05 |
| Peak | 3,807 Hz | -1.5 dB | 2.84 |
| Peak | 6,244 Hz | +3.1 dB | 6.00 |
Studio flat target
Set a preamp of -2.6 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 91 out of 100, up from 43.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -8.0 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 188 Hz | -6.4 dB | 0.77 |
| Peak | 355 Hz | -1.0 dB | 3.01 |
| Peak | 871 Hz | +2.0 dB | 2.05 |
| Peak | 2,011 Hz | -4.3 dB | 6.00 |
| Peak | 2,773 Hz | +3.0 dB | 6.00 |
| Peak | 3,972 Hz | -1.5 dB | 4.31 |
| Peak | 4,994 Hz | -3.1 dB | 6.00 |
| Peak | 6,723 Hz | +2.0 dB | 3.84 |
Warm target
Set a preamp of -3.4 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 Warm match with this EQ: 84 out of 100, up from 59.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +3.4 dB | 0.70 |
| High shelf | 10,000 Hz | -2.5 dB | 0.70 |
| Peak | 186 Hz | -4.3 dB | 0.86 |
| Peak | 893 Hz | +2.4 dB | 1.71 |
| Peak | 2,127 Hz | -5.7 dB | 2.41 |
| Peak | 3,578 Hz | -2.1 dB | 6.00 |
| Peak | 4,708 Hz | -3.2 dB | 3.10 |
| Peak | 6,491 Hz | +2.0 dB | 5.36 |
Bass 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 82 out of 100, up from 49.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.7 dB | 0.70 |
| Peak | 207 Hz | -4.5 dB | 1.01 |
| Peak | 875 Hz | +2.0 dB | 2.02 |
| Peak | 2,062 Hz | -5.7 dB | 4.04 |
| Peak | 3,807 Hz | -1.5 dB | 2.84 |
| Peak | 6,245 Hz | +3.1 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 85 out of 100, up from 48.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -5.4 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 186 Hz | -4.6 dB | 0.75 |
| Peak | 859 Hz | +2.0 dB | 1.83 |
| Peak | 2,046 Hz | -5.6 dB | 4.78 |
| Peak | 5,937 Hz | +5.6 dB | 6.00 |
V-shaped 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 5 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 82 out of 100, up from 52.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.9 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 214 Hz | -3.1 dB | 1.20 |
| Peak | 2,033 Hz | -5.2 dB | 5.22 |
| Peak | 2,857 Hz | +1.9 dB | 6.00 |
| Peak | 5,856 Hz | +5.0 dB | 3.85 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the TRN BA8 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 bedrock, bryaudioreviews, eplv, hbb and pw. Thanks to each of them for publishing their work.