Preamp: -6.6 dB GraphicEQ: 20 -1.6; 27 -2.0; 36 -2.0; 47 -2.4; 63 -3.0; 84 -3.7; 112 -4.2; 150 -4.3; 200 -4.4; 267 -3.2; 356 -2.0; 474 -1.1; 632 0.0; 843 0.5; 1125 -0.0; 1500 -0.8; 2000 -2.0; 2667 -0.4; 3557 3.1; 4743 0.3; 6325 0.0; 8434 -3.4; 11247 6.3; 14998 -9.9; 20000 -4.3