AutoEq / EqualizerAPO preset for Auribus Acoustics Sierra Reference Open Back Headphones

Generated from this product's measured frequency response (source: AutoEq · Super Review), 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

Parametric preset (AutoEq / EqualizerAPO format)

# Auribus Acoustics Sierra Reference Open Back Headphones - AutoEq-style parametric preset (measured: AutoEq · Super Review)
# AutoEq-style parametric preset - TheTuningChoice (approximate Harman over-ear (OE 2018) target; estimate, treat as a starting point)
Preamp: -4.1 dB
Filter 1: ON LSC Fc 105 Hz Gain 2.1 dB Q 0.70
Filter 2: ON PK Fc 40 Hz Gain 0.1 dB Q 2.00
Filter 3: ON PK Fc 90 Hz Gain 1.2 dB Q 1.40
Filter 4: ON PK Fc 180 Hz Gain 1.6 dB Q 1.40
Filter 5: ON PK Fc 375 Hz Gain 1.7 dB Q 1.40
Filter 6: ON PK Fc 750 Hz Gain -0.1 dB Q 1.40
Filter 7: ON PK Fc 1500 Hz Gain 1.9 dB Q 1.40
Filter 8: ON PK Fc 3000 Hz Gain 0.3 dB Q 1.40
Filter 9: ON PK Fc 6000 Hz Gain 3.8 dB Q 1.40
Filter 10: ON PK Fc 10000 Hz Gain 3.8 dB Q 2.00

GraphicEQ line (EqualizerAPO)

Preamp: -7.3 dB
GraphicEQ: 20 3.0; 27 2.3; 36 2.2; 47 2.4; 63 2.7; 84 3.0; 112 2.7; 150 2.5; 200 2.1; 267 2.0; 356 2.1; 474 2.0; 632 1.1; 843 0.2; 1125 0.9; 1500 2.7; 2000 2.3; 2667 -0.5; 3557 3.6; 4743 0.9; 6325 7.0; 8434 2.8; 11247 0.8; 14998 3.3; 20000 -3.6

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.

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.