Preamp: -7.5 dB GraphicEQ: 20 -5.5; 27 -5.6; 36 -5.6; 47 -5.5; 63 -5.9; 84 -6.9; 112 -7.8; 150 -7.6; 200 -7.4; 267 -5.7; 356 -4.1; 474 -3.1; 632 -2.0; 843 -0.7; 1125 1.3; 1500 3.3; 2000 5.1; 2667 7.0; 3557 7.2; 4743 5.8; 6325 3.9; 8434 0.1; 11247 -5.7; 14998 -11.5; 20000 -23.2