The Etymotic ER4S ranks #823 out of 865 total In-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: Etymotic
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#823 Etymotic ER4S Discontinued eBay
Pros: Upper treble lifts about 4.9 dB for extra air and sparkle. Lower mids sit within about 0.5 dB of target, keeping voices and guitars natural. It uses 1 x balanced armature.
Cons: Discontinued, so it is mainly found used. Sub-bass is 10.7 dB short at 30 Hz, so deep bass lacks rumble. A Harman score of 45 places it in the lower part of the in-ear rankings.
| Connection | Wired |
|---|---|
| Deviation From Target | 4.23 dB standard deviation |
| Driver Type | Balanced armature |
| Drivers | 1 x balanced armature |
| Form Factor | In-ear |
| Frequency Response | 20Hz - 16kHz |
| Harman Preference Score | 45 (measured by crinacle, via AutoEQ) |
| Impedance | 100 ohms |
| Sensitivity | 110 dB/Vrms |
| Sub-bass Extension | Falls 6 dB below target at 80 Hz (-10.7 dB at 30 Hz) |
| Tonal Tilt | +1.41 (negative is warmer, positive brighter) |
EQ preset to match the Harman 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 AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +6.0 dB | 0.70 |
| Peak | 2,554 Hz | -4.2 dB | 1.32 |
| Peak | 6,538 Hz | +5.2 dB | 1.03 |
| Peak | 1,523 Hz | -2.5 dB | 2.59 |
| Peak | 77 Hz | +1.3 dB | 2.26 |
| High shelf | 10,000 Hz | -0.1 dB | 0.70 |
| Peak | 266 Hz | -0.7 dB | 1.03 |
| Peak | 872 Hz | +0.9 dB | 1.91 |
| Peak | 1,247 Hz | -0.7 dB | 4.31 |
| Peak | 112 Hz | +0.3 dB | 2.62 |
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