Pioneer SC-LX58, playing music in Lossless Multi-channel_32

AV receiver : SC-LX58 (ALL CH ADJ ; EQ professional : EQ ON, 10-30ms ; DIRECT mode : EQ ON, S-WAVE ON, PHASE FULLBND, Hi-bit32 ON, UpSampling x4, DFILTER SLOW) Front Speaker : B&W 683S2 Center Speaker : ONKYO D-508C Rear Speaker : DENON SC-A33SG Recording : BEHRINGER C-2 ( nominal frequency response compensated ) , TASCAM US-2x2