The EarAcoustic STA Pro ranks #854 out of 1291 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: EarAcoustic
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.
#854 EarAcoustic STA Pro: $49.90 Linsoul $49.90 eBay
Pros: A broadly balanced tuning with a preference score of 67 against the Harman target.
Cons: An uneven response, 2.4 dB standard deviation from target.
Is the EarAcoustic STA Pro right for you?
Buy it if
- 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 21 points.
Skip it if
- you want the best value: the higher-rated EPZ G10 costs about $26 less.
| Back | Closed |
|---|---|
| Connection | Wired |
| Deviation From Target | 2.41 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 2 x dynamic drivers (1 x 10mm graphene + 1 x 6mm titanium-plated) |
| Form Factor | In-ear |
| Frequency Response | 10Hz - 30kHz |
| Harman Preference Score | 67 (median of 3 squig.link measurements, calibrated to AutoEQ) |
| Impedance | 18 ohms |
| Sensitivity | 113 dB |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (+0.3 dB at 30 Hz) |
| Tonal Tilt | -0.55 (negative is warmer, positive brighter) |
EQ Presets
Harman target
Set a preamp of -3.7 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 Harman match with this EQ: 88 out of 100, up from 67.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -1.3 dB | 0.70 |
| High shelf | 10,000 Hz | -3.3 dB | 0.70 |
| Peak | 171 Hz | -5.3 dB | 0.79 |
| Peak | 807 Hz | +1.8 dB | 2.22 |
| Peak | 2,050 Hz | -2.3 dB | 3.31 |
| Peak | 3,487 Hz | +3.8 dB | 5.93 |
| Peak | 5,826 Hz | +4.7 dB | 6.00 |
| Peak | 7,711 Hz | -2.9 dB | 6.00 |
Neutral target
Set a preamp of -3.7 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 Neutral match with this EQ: 90 out of 100, up from 33.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -9.9 dB | 0.70 |
| High shelf | 10,000 Hz | -3.2 dB | 0.70 |
| Peak | 163 Hz | -5.2 dB | 0.71 |
| Peak | 803 Hz | +1.8 dB | 2.17 |
| Peak | 2,053 Hz | -2.3 dB | 3.34 |
| Peak | 3,487 Hz | +3.8 dB | 5.92 |
| Peak | 5,825 Hz | +4.7 dB | 6.00 |
| Peak | 7,710 Hz | -2.9 dB | 6.00 |
Studio flat target
Set a preamp of -4.9 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 14.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -12.0 dB | 0.70 |
| High shelf | 10,000 Hz | +1.2 dB | 0.70 |
| Peak | 170 Hz | -7.1 dB | 0.75 |
| Peak | 327 Hz | -1.0 dB | 3.03 |
| Peak | 812 Hz | +1.8 dB | 2.45 |
| Peak | 1,820 Hz | -1.2 dB | 3.59 |
| Peak | 3,238 Hz | +5.1 dB | 3.73 |
| Peak | 4,670 Hz | -2.1 dB | 6.00 |
| Peak | 7,740 Hz | -2.3 dB | 6.00 |
Warm target
Set a preamp of -1.9 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: 88 out of 100, up from 73.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -1.1 dB | 0.70 |
| High shelf | 10,000 Hz | -6.0 dB | 0.70 |
| Peak | 169 Hz | -5.0 dB | 0.81 |
| Peak | 802 Hz | +2.1 dB | 2.22 |
| Peak | 2,080 Hz | -3.2 dB | 3.18 |
| Peak | 3,466 Hz | +2.4 dB | 5.27 |
| Peak | 4,669 Hz | -1.8 dB | 6.00 |
| Peak | 7,634 Hz | -4.8 dB | 6.00 |
Bass target
Set a preamp of -3.7 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 Bass match with this EQ: 89 out of 100, up from 69.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +2.5 dB | 0.70 |
| High shelf | 10,000 Hz | -3.3 dB | 0.70 |
| Peak | 25 Hz | +1.3 dB | 1.11 |
| Peak | 173 Hz | -5.2 dB | 0.81 |
| Peak | 809 Hz | +1.8 dB | 2.24 |
| Peak | 2,049 Hz | -2.3 dB | 3.29 |
| Peak | 3,487 Hz | +3.8 dB | 5.95 |
| Peak | 5,826 Hz | +4.7 dB | 6.00 |
| Peak | 7,711 Hz | -2.9 dB | 6.00 |
Bright target
Set a preamp of -4.6 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 Bright match with this EQ: 84 out of 100, up from 23.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | -9.9 dB | 0.70 |
| Peak | 163 Hz | -5.2 dB | 0.69 |
| Peak | 3,447 Hz | +2.8 dB | 6.00 |
| Peak | 5,108 Hz | +4.3 dB | 1.28 |
V-shaped target
Set a preamp of -5.2 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 3 squig.link measurements, in the filter layout AutoEQ uses. Predicted V-shaped match with this EQ: 84 out of 100, up from 66.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +3.1 dB | 0.70 |
| High shelf | 10,000 Hz | +1.1 dB | 0.70 |
| Peak | 166 Hz | -3.9 dB | 0.83 |
| Peak | 1,974 Hz | -2.2 dB | 2.50 |
| Peak | 3,415 Hz | +2.9 dB | 6.00 |
| Peak | 5,016 Hz | +4.7 dB | 1.14 |
- Reviews, Comparisons and Sound Samples
Frequency Response
How the EarAcoustic STA Pro 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 avishai, lumerion and pw. Thanks to each of them for publishing their work.
Head-to-Head Comparisons
3 comparisons- EarAcoustic STA Pro vs Astrotec GX100
- EarAcoustic STA Pro vs Whizzer HE01
- EarAcoustic STA Pro vs KZ ZSX
No comparisons match that search.