AutoEq / EqualizerAPO preset for IKKO - Opal OH2 Wired IEM

Generated from this product's measured frequency response (source: AutoEq · Fahryst), corrected toward an approximate Harman in-ear (IE 2019) 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)

# IKKO - Opal OH2 Wired IEM - AutoEq-style parametric preset (measured: AutoEq · Fahryst)
# AutoEq-style parametric preset - TheTuningChoice (approximate Harman in-ear (IE 2019) target; estimate, treat as a starting point)
Preamp: -5.1 dB
Filter 1: ON LSC Fc 105 Hz Gain 4.8 dB Q 0.70
Filter 2: ON PK Fc 40 Hz Gain 0.5 dB Q 2.00
Filter 3: ON PK Fc 90 Hz Gain -2.3 dB Q 1.40
Filter 4: ON PK Fc 180 Hz Gain -2.9 dB Q 1.40
Filter 5: ON PK Fc 375 Hz Gain -2.1 dB Q 1.40
Filter 6: ON PK Fc 750 Hz Gain 0.4 dB Q 1.40
Filter 7: ON PK Fc 1500 Hz Gain -0.8 dB Q 1.40
Filter 8: ON PK Fc 3000 Hz Gain -0.1 dB Q 1.40
Filter 9: ON PK Fc 6000 Hz Gain 4.2 dB Q 1.40
Filter 10: ON PK Fc 10000 Hz Gain 3.7 dB Q 2.00

GraphicEQ line (EqualizerAPO)

Preamp: -8.0 dB
GraphicEQ: 20 6.9; 27 5.8; 36 5.0; 47 4.0; 63 2.5; 84 0.7; 112 -1.0; 150 -2.4; 200 -3.6; 267 -3.2; 356 -2.6; 474 -1.9; 632 -0.7; 843 0.2; 1125 -0.0; 1500 -0.5; 2000 -1.5; 2667 0.1; 3557 2.0; 4743 1.1; 6325 7.7; 8434 0.8; 11247 6.1; 14998 -4.2; 20000 -11.4

CSV band table (phone-app EQs)

105,4.8,0.7
40,0.5,2
90,-2.3,1.4
180,-2.9,1.4
375,-2.1,1.4
750,0.4,1.4
1500,-0.8,1.4
3000,-0.1,1.4
6000,4.2,1.4
10000,3.7,2

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.