Preamp: -4.8 dB GraphicEQ: 20 -2.1; 27 -2.2; 36 -2.2; 47 -2.1; 63 -2.5; 84 -3.5; 112 -4.4; 150 -4.3; 200 -4.2; 267 -2.6; 356 -1.1; 474 -0.7; 632 -0.5; 843 -0.2; 1125 0.9; 1500 2.2; 2000 3.3; 2667 4.5; 3557 3.9; 4743 2.7; 6325 1.5; 8434 -1.5; 11247 -6.8; 14998 -12.6; 20000 -24.3