AutoEq / EqualizerAPO preset for JBL Quantum 400 Wired Gaming Headphones - Clearance / Open Box

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

Parametric preset (AutoEq / EqualizerAPO format)

# JBL Quantum 400 Wired Gaming Headphones - Clearance / Open Box - 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: -5.8 dB
Filter 1: ON LSC Fc 105 Hz Gain 1.6 dB Q 0.70
Filter 2: ON PK Fc 40 Hz Gain -2.8 dB Q 2.00
Filter 3: ON PK Fc 90 Hz Gain -4.7 dB Q 1.40
Filter 4: ON PK Fc 180 Hz Gain -1.7 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 -0.6 dB Q 1.40
Filter 7: ON PK Fc 1500 Hz Gain -0.1 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 5.5 dB Q 1.40
Filter 10: ON PK Fc 10000 Hz Gain -4.9 dB Q 2.00

GraphicEQ line (EqualizerAPO)

Preamp: -16.0 dB
GraphicEQ: 20 6.1; 27 1.1; 36 -1.7; 47 -2.6; 63 -2.8; 84 -4.0; 112 -3.9; 150 -3.0; 200 -1.9; 267 0.3; 356 1.4; 474 0.9; 632 -0.2; 843 -0.7; 1125 0.8; 1500 1.4; 2000 0.2; 2667 -1.9; 3557 7.2; 4743 15.7; 6325 1.4; 8434 -6.1; 11247 -2.0; 14998 0.1; 20000 -8.2

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.

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.