AutoEq / EqualizerAPO preset for Pro4S Studio Headphones

Generated from this product's measured frequency response (source: ASH-IR HpCF), corrected toward an approximate Harman over-ear (OE 2018) target. This is an estimate - every ear and every rig differs; treat the numbers as a starting point.

Download parametric .txt Download GraphicEQ.txt AutoEq CSV (Qudelix / Wavelet)

Parametric preset (AutoEq / EqualizerAPO format)

# Pro4S Studio Headphones - AutoEq-style parametric preset (measured: ASH-IR HpCF)
# AutoEq-style parametric preset - TheTuningChoice (approximate Harman over-ear (OE 2018) target; estimate, treat as a starting point)
Preamp: -11.9 dB
Filter 1: ON LSC Fc 105 Hz Gain 0.9 dB Q 0.70
Filter 2: ON PK Fc 40 Hz Gain 0.3 dB Q 2.00
Filter 3: ON PK Fc 90 Hz Gain -1.4 dB Q 1.40
Filter 4: ON PK Fc 180 Hz Gain 1.9 dB Q 1.40
Filter 5: ON PK Fc 375 Hz Gain 0.5 dB Q 1.40
Filter 6: ON PK Fc 750 Hz Gain -1.3 dB Q 1.40
Filter 7: ON PK Fc 1500 Hz Gain 0.4 dB Q 1.40
Filter 8: ON PK Fc 3000 Hz Gain 2.9 dB Q 1.40
Filter 9: ON PK Fc 6000 Hz Gain 11.6 dB Q 1.40
Filter 10: ON PK Fc 10000 Hz Gain 3.3 dB Q 2.00

GraphicEQ line (EqualizerAPO)

Preamp: -14.0 dB
GraphicEQ: 20 1.4; 27 1.3; 36 1.2; 47 0.8; 63 0.2; 84 -0.4; 112 -0.1; 150 0.5; 200 1.9; 267 3.7; 356 0.1; 474 -0.9; 632 -1.1; 843 -0.8; 1125 0.4; 1500 1.1; 2000 1.8; 2667 2.4; 3557 6.4; 4743 13.7; 6325 12.5; 8434 8.8; 11247 4.0; 14998 -2.3; 20000 -13.4

CSV band table (phone-app EQs)

105,0.9,0.7
40,0.3,2
90,-1.4,1.4
180,1.9,1.4
375,0.5,1.4
750,-1.3,1.4
1500,0.4,1.4
3000,2.9,1.4
6000,11.6,1.4
10000,3.3,2

How this format loads

EqualizerAPO: the .txt goes in your config folder and is included from config.txt (the parametric filters apply system-wide on Windows). Wavelet and most DAPs accept the same band table typed into their parametric EQ: same frequencies, same gains, same Q. Preamp exists so the loudest boosted band cannot clip.

Qudelix-5K / 71: the CSV is the AutoEq interchange the app's EQ import accepts - open the EQ screen, import/paste, and the ten bands above land as parametric filters (connect the app to the dongle first). Wavelet (Android): the same CSV feeds its parametric-EQ import; on setups without import, the band table above is short enough to type in by hand. Menu names move between app versions - the numbers stay the same.

Facts on this page come from the measured curve on file; the target curve and the fit are approximations. Nothing here is a recommendation to EQ - it is the preset, labeled, for people who already EQ.