The TRN ST7 ranks #619 out of 1084 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 15, 2026 at 5:41 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.
#619 TRN ST7 Discontinued eBay
Pros: A hybrid with coaxial 10mm and 6mm dynamic drivers plus five balanced armatures. It measures reasonably close to the Harman target (score 69 across three measurements).
Cons: Discontinued, so it is mainly found used. Treble sits about 4.7 dB below target, a dark, relaxed balance. Bass sits about 2.8 dB below target, so it sounds lean. A 2.64 dB spread from the target shows peaks and dips that better tuned sets avoid. Its score rests on three measurements.
Is the TRN ST7 right for you?
Buy it if
- you are sensitive to bright or sharp treble (treble sits 4.7 dB below target).
- you are happy to use EQ: our preset lifts its Harman match by about 17 points.
Skip it if
- you want more bass (about 3 dB below target).
- you want to buy it new: it is discontinued.
| Released | 2024 (2 years ago) |
|---|---|
| Back | Closed |
| Connection | Wired |
| Deviation From Target | 2.64 dB standard deviation |
| Driver Type | Hybrid |
| Drivers | 2 x dynamic + 5 x balanced armature |
| Form Factor | In-ear |
| Harman Preference Score | 69 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 30 ohms |
| Sensitivity | 112 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-2.2 dB at 30 Hz) |
| Tonal Tilt | +0.03 (negative is warmer, positive brighter) |
EQ Presets
Harman 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Harman match with this EQ: 86 out of 100, up from 69.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +3.6 dB | 0.70 |
| High shelf | 10,000 Hz | +0.4 dB | 0.70 |
| Peak | 553 Hz | +2.7 dB | 1.18 |
| Peak | 1,400 Hz | -1.5 dB | 3.93 |
| Peak | 1,723 Hz | -6.1 dB | 4.12 |
| Peak | 2,722 Hz | +2.5 dB | 5.57 |
| Peak | 4,321 Hz | +6.0 dB | 1.30 |
| Peak | 5,794 Hz | +2.3 dB | 6.00 |
Neutral 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Neutral match with this EQ: 89 out of 100, up from 44.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -5.0 dB | 0.70 |
| High shelf | 10,000 Hz | +0.4 dB | 0.70 |
| Peak | 79 Hz | -1.4 dB | 1.38 |
| Peak | 555 Hz | +2.7 dB | 1.21 |
| Peak | 1,400 Hz | -1.5 dB | 3.96 |
| Peak | 1,723 Hz | -6.1 dB | 4.12 |
| Peak | 2,722 Hz | +2.5 dB | 5.56 |
| Peak | 4,321 Hz | +6.0 dB | 1.29 |
| Peak | 5,793 Hz | +2.3 dB | 6.00 |
Studio flat target
Set a preamp of -6.7 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Studio flat match with this EQ: 88 out of 100, up from 29.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -7.6 dB | 0.70 |
| High shelf | 10,000 Hz | +1.9 dB | 0.70 |
| Peak | 135 Hz | -2.3 dB | 1.16 |
| Peak | 611 Hz | +2.3 dB | 1.67 |
| Peak | 1,405 Hz | -1.4 dB | 4.17 |
| Peak | 1,722 Hz | -6.2 dB | 3.90 |
| Peak | 2,954 Hz | +6.0 dB | 1.55 |
| Peak | 5,345 Hz | +3.4 dB | 1.34 |
Warm target
Set a preamp of -5.0 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Warm match with this EQ: 87 out of 100, up from 68.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +3.8 dB | 0.70 |
| High shelf | 10,000 Hz | -1.7 dB | 0.70 |
| Peak | 546 Hz | +3.0 dB | 1.16 |
| Peak | 1,426 Hz | -1.8 dB | 4.12 |
| Peak | 1,732 Hz | -6.4 dB | 4.29 |
| Peak | 3,430 Hz | +2.6 dB | 2.23 |
| Peak | 5,345 Hz | +4.6 dB | 1.21 |
| Peak | 7,701 Hz | -3.2 dB | 6.00 |
Bass 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bass match with this EQ: 85 out of 100, up from 58.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +5.9 dB | 0.70 |
| High shelf | 10,000 Hz | +0.4 dB | 0.70 |
| Peak | 546 Hz | +2.6 dB | 1.08 |
| Peak | 1,397 Hz | -1.6 dB | 3.75 |
| Peak | 1,723 Hz | -6.1 dB | 4.12 |
| Peak | 2,722 Hz | +2.5 dB | 5.66 |
| Peak | 4,321 Hz | +6.0 dB | 1.30 |
| Peak | 5,794 Hz | +2.3 dB | 6.00 |
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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted Bright match with this EQ: 80 out of 100, up from 33.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -5.0 dB | 0.70 |
| High shelf | 10,000 Hz | +1.8 dB | 0.70 |
| Peak | 79 Hz | -1.5 dB | 1.33 |
| Peak | 553 Hz | +2.6 dB | 1.26 |
| Peak | 1,393 Hz | -1.5 dB | 4.00 |
| Peak | 1,726 Hz | -6.3 dB | 3.93 |
| Peak | 2,697 Hz | +2.0 dB | 6.00 |
| Peak | 3,807 Hz | +6.0 dB | 1.26 |
| Peak | 5,522 Hz | +3.3 dB | 3.62 |
V-shaped target
Set a preamp of -6.6 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 77 out of 100, up from 55.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +6.0 dB | 0.70 |
| High shelf | 10,000 Hz | +2.0 dB | 0.70 |
| Peak | 398 Hz | +2.8 dB | 0.62 |
| Peak | 1,331 Hz | -1.8 dB | 2.74 |
| Peak | 1,711 Hz | -6.2 dB | 3.80 |
| Peak | 2,678 Hz | +1.7 dB | 6.00 |
| Peak | 3,573 Hz | +6.0 dB | 1.24 |
| Peak | 5,430 Hz | +3.6 dB | 3.02 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the TRN ST7 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 3 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 3 measurements from the squig.link databases of atechreviews, ducbloke and eplv. Thanks to each of them for publishing their work.