Preamp: -6.9 dB GraphicEQ: 20 -0.9; 27 -1.0; 36 -1.1; 47 -1.2; 63 -1.6; 84 -2.4; 112 -3.2; 150 -3.2; 200 -3.2; 267 -1.6; 356 -0.0; 474 0.5; 632 0.3; 843 0.1; 1125 0.7; 1500 2.5; 2000 4.3; 2667 6.1; 3557 6.6; 4743 5.1; 6325 3.0; 8434 0.2; 11247 -4.2; 14998 -9.4; 20000 -24.2