Preamp: -4.3 dB GraphicEQ: 20 -2.4; 27 -2.0; 36 -1.6; 47 -1.8; 63 -2.4; 84 -2.6; 112 -1.7; 150 0.3; 200 0.7; 267 2.9; 356 4.0; 474 2.0; 632 0.8; 843 0.5; 1125 0.5; 1500 1.6; 2000 0.8; 2667 -3.1; 3557 1.3; 4743 0.5; 6325 -3.8; 8434 -2.0; 11247 -0.5; 14998 -2.1; 20000 -18.4