[One and a Half]

Originally Posted by ducman748

Thanks Thanks for the answers explaining a lot.

The phase switch on the front is very clever. In your case set the XLR input from the 'reverse' phono preamp and press the phase switch.
Then select another input something like Tuner, and remove the phase switch or set to off and leave it off.

Now select the input again to the phono preamp XLR input, you should see the phase LED light up, so the amp remembers when to set the phase switch on which XLR input.

Yes, the phase switch affects only XLR inputs, all others are not changed, like RCA inputs or Pre-Out XLR outputs.