Preamp: -5.0 dB GraphicEQ: 20 -1.8; 27 -1.9; 36 -1.9; 47 -2.0; 63 -2.5; 84 -3.6; 112 -4.7; 150 -4.8; 200 -4.9; 267 -3.6; 356 -2.3; 474 -1.7; 632 -1.1; 843 -0.4; 1125 1.0; 1500 2.5; 2000 3.5; 2667 4.7; 3557 4.2; 4743 2.7; 6325 1.0; 8434 -2.5; 11247 -8.1; 14998 -13.8; 20000 -25.5