volumeControlRegister: -3dB
volumeLimitRegister: 50%
mute: 0x1
balanceRegister: 0.8
IIR_L: lp:1500Hz, hp:300Hz:0.6, eq: 1200Hz:2:+3dB, vol:-1dB
IIR_R1: vol: +3dB
IIR_R2: vol: -3dB
IIR_R3: vol: +0dB
