Inputs 3&4 are normalized to phono1. That is so that you can plug a common 3.5mm to RCA cable into phono1, and sample from inputs 3&4, bypassing phono1’s RIAA filter.
Inputs 3&4 are normalized to phono1. That is so that you can plug a common 3.5mm to RCA cable into phono1, and sample from inputs 3&4, bypassing phono1’s RIAA filter.