Preamp: -6.3 dB GraphicEQ: 20 -1.9; 27 -1.7; 36 -1.2; 47 -0.9; 63 -0.8; 84 -1.2; 112 -1.4; 150 -1.5; 200 -1.8; 267 -1.0; 356 -0.6; 474 -0.4; 632 0.2; 843 0.5; 1125 -0.0; 1500 0.4; 2000 1.6; 2667 5.7; 3557 6.0; 4743 5.7; 6325 6.0; 8434 0.2; 11247 -0.4; 14998 -0.1; 20000 -0.7