Preamp: -7.4 dB GraphicEQ: 20 -6.1; 27 -6.2; 36 -6.1; 47 -5.8; 63 -6.0; 84 -6.8; 112 -7.4; 150 -7.2; 200 -7.0; 267 -5.3; 356 -3.6; 474 -2.7; 632 -1.8; 843 -0.7; 1125 1.2; 1500 3.3; 2000 5.1; 2667 7.0; 3557 7.1; 4743 5.8; 6325 4.0; 8434 0.4; 11247 -5.3; 14998 -11.1; 20000 -22.8