The Stax SR-003MK2 ranks #873 out of 909 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Stax
Prices on this page were last checked October 13, 2026 at 3:17 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.
#873 Stax SR-003MK2 eBay
Pros: Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural.
Cons: Presence sits about 10.1 dB low with an 18.2 dB dip near 6.0 kHz, so vocals and instruments lose some bite. Sub-bass is 12.7 dB short at 30 Hz, so deep bass lacks rumble. A Harman score of 34 places it in the lower part of the in-ear rankings.
| Released | 2012 (14 years ago) |
|---|---|
| Connection | Wired |
| Deviation From Target | 4.97 dB standard deviation |
| Driver Type | Electrostatic |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 20kHz |
| Harman Preference Score | 34 (measured by oratory1990, via AutoEQ) |
| Sensitivity | 110 dB/100Vrms |
| Sub-bass Extension | Falls 6 dB below target at 89 Hz (-12.7 dB at 30 Hz) |
| Tonal Tilt | +0.59 (negative is warmer, positive brighter) |
| Weight | 0 lbs (11 g) (without cable) |
EQ preset to match the 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 AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +6.3 dB | 0.70 |
| Peak | 1,014 Hz | -8.6 dB | 0.53 |
| Peak | 5,267 Hz | +5.8 dB | 0.37 |
| Peak | 1,033 Hz | +9.4 dB | 2.07 |
| Peak | 168 Hz | -1.7 dB | 0.85 |
| High shelf | 10,000 Hz | -7.9 dB | 0.70 |
| Peak | 4,422 Hz | -5.2 dB | 5.87 |
| Peak | 3,198 Hz | +1.6 dB | 2.73 |
| Peak | 8,280 Hz | +3.7 dB | 4.13 |
| Peak | 5,617 Hz | +2.1 dB | 3.13 |
- Reviews, Comparisons and Sound Samples