Did a search, couldn’t find much on this. I just got some M700s yesterday and figured I’d try some of my rhodium shorting covers for RCA inputs. Given that it had been a while since I had listened, the equipment was off, I had a slight sense that volume levels for equivalent settings on the pre-amp seemed lower once the caps were in place and the system was powered back on. But the sound seemed maybe “smoother” and with a lower noise floor (?) hard to say since I took breaks between.
But anyway today I listened to a few songs, then decided to remove the covers from the RCA inputs and yep, i get an extra 2-3dB in volume without the shorting covers on the RCA inputs. Again, I’m using the XLR, so I figured the unit would just sense or default to that, but apparently this is firmware/programming related? Does the unit automatically lower speaker connection output, even via balanced inputs, when there is something connected to the RCA unbalanced inputs?
Could someone please explain this functionality?