AutoEq / EqualizerAPO preset for Sennheiser HD 4.50 BTNC - Wireless Headphone

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

# Sennheiser HD 4.50 BTNC - Wireless Headphone - AutoEq-style parametric preset (measured: AutoEq · Rtings)
# AutoEq-style parametric preset - TheTuningChoice (approximate Harman over-ear (OE 2018) target; estimate, treat as a starting point)
Preamp: -7.6 dB
Filter 1: ON LSC Fc 105 Hz Gain 2.0 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 0.1 dB Q 1.40
Filter 4: ON PK Fc 180 Hz Gain 2.0 dB Q 1.40
Filter 5: ON PK Fc 375 Hz Gain 3.7 dB Q 1.40
Filter 6: ON PK Fc 750 Hz Gain 0.8 dB Q 1.40
Filter 7: ON PK Fc 1500 Hz Gain -2.7 dB Q 1.40
Filter 8: ON PK Fc 3000 Hz Gain 3.0 dB Q 1.40
Filter 9: ON PK Fc 6000 Hz Gain 7.3 dB Q 1.40
Filter 10: ON PK Fc 10000 Hz Gain 0.5 dB Q 2.00

GraphicEQ line (EqualizerAPO)

Preamp: -8.7 dB
GraphicEQ: 20 3.6; 27 2.0; 36 1.4; 47 1.5; 63 1.8; 84 1.8; 112 2.0; 150 2.2; 200 2.7; 267 4.2; 356 4.4; 474 3.2; 632 1.6; 843 0.7; 1125 0.1; 1500 -1.0; 2000 -2.6; 2667 -0.1; 3557 7.4; 4743 8.4; 6325 7.4; 8434 -0.4; 11247 1.0; 14998 3.1; 20000 -0.5

CSV band table (phone-app EQs)

105,2.0,0.7
40,-0.5,2
90,0.1,1.4
180,2.0,1.4
375,3.7,1.4
750,0.8,1.4
1500,-2.7,1.4
3000,3.0,1.4
6000,7.3,1.4
10000,0.5,2

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.