Preamp: -4.4 dB GraphicEQ: 20 -1.6; 27 -1.7; 36 -1.7; 47 -2.0; 63 -2.8; 84 -4.2; 112 -5.4; 150 -5.0; 200 -4.7; 267 -3.0; 356 -1.2; 474 -0.7; 632 -0.5; 843 -0.2; 1125 0.9; 1500 2.1; 2000 3.1; 2667 4.1; 3557 3.5; 4743 2.1; 6325 0.8; 8434 -2.4; 11247 -7.8; 14998 -13.6; 20000 -25.3