Preamp: -3.9 dB GraphicEQ: 20 -1.4; 27 -1.5; 36 -1.5; 47 -1.8; 63 -2.6; 84 -4.0; 112 -5.2; 150 -5.1; 200 -5.0; 267 -3.5; 356 -1.9; 474 -1.4; 632 -0.9; 843 -0.3; 1125 1.0; 1500 2.1; 2000 2.8; 2667 3.6; 3557 2.7; 4743 1.3; 6325 -0.0; 8434 -3.2; 11247 -8.7; 14998 -14.4; 20000 -26.1