AutoEq / EqualizerAPO preset for Sennheiser - HD 650

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

# Sennheiser - HD 650 - AutoEq-style parametric preset (measured: AutoEq · Auriculares Argentina)
# AutoEq-style parametric preset - TheTuningChoice (approximate Harman over-ear (OE 2018) target; estimate, treat as a starting point)
Preamp: -7.7 dB
Filter 1: ON LSC Fc 105 Hz Gain 7.4 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 -2.3 dB Q 1.40
Filter 4: ON PK Fc 180 Hz Gain -1.2 dB Q 1.40
Filter 5: ON PK Fc 375 Hz Gain 0.0 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 1.5 dB Q 1.40
Filter 8: ON PK Fc 3000 Hz Gain 0.0 dB Q 1.40
Filter 9: ON PK Fc 6000 Hz Gain 2.3 dB Q 1.40
Filter 10: ON PK Fc 10000 Hz Gain 2.1 dB Q 2.00

GraphicEQ line (EqualizerAPO)

Preamp: -11.5 dB
GraphicEQ: 20 11.2; 27 8.9; 36 6.9; 47 5.2; 63 4.1; 84 2.9; 112 1.1; 150 -0.2; 200 -1.2; 267 -0.7; 356 -0.2; 474 0.2; 632 0.3; 843 0.1; 1125 0.4; 1500 1.4; 2000 2.8; 2667 0.4; 3557 0.3; 4743 1.0; 6325 2.4; 8434 5.2; 11247 1.5; 14998 -7.6; 20000 -22.1

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.