Originally Posted by Sirrus
I was only suggesting a "bong" issue is you limited your head unit output to 2.8 v and raised the amplifier gains accordingly. Technic, what are your thoughts about the 5 V head unit output vs the 2.8 V MS-8 max input?
The 5V is maximum, so the 2.8V max input of the MS-8 still can handle it as long as you don't max out the OEM volume.
Anyways, when you run input setup -again, not required with HiFi balanced signals- the MS-8 shows its three "OK" when the OEM volume is 46-47 out of a maximum of 52 "clicks" of the OEM volume knob. That tells me that that 2.8V max input level is not that accurate.