Preamp: -4.6 dB GraphicEQ: 20 -2.4; 27 -2.5; 36 -2.5; 47 -2.8; 63 -3.6; 84 -5.0; 112 -6.2; 150 -5.9; 200 -5.6; 267 -3.8; 356 -2.0; 474 -1.4; 632 -0.9; 843 -0.3; 1125 1.0; 1500 2.3; 2000 3.3; 2667 4.3; 3557 3.6; 4743 2.2; 6325 0.7; 8434 -2.6; 11247 -8.2; 14998 -13.9; 20000 -25.6