Preamp: -3.1 dB GraphicEQ: 20 -5.3; 27 -5.5; 36 -5.5; 47 -6.0; 63 -6.8; 84 -7.9; 112 -8.7; 150 -9.0; 200 -9.1; 267 -7.6; 356 -5.9; 474 -4.2; 632 -2.0; 843 -0.3; 1125 0.4; 1500 -0.0; 2000 0.4; 2667 1.4; 3557 2.8; 4743 -2.1; 6325 -1.7; 8434 -10.9; 11247 -5.7; 14998 -8.2; 20000 -1.3