Adcom has a great heritage.
1. Get a couple of bridgeable GFA-555ms (125 wpc) at $1,549 each OR
2. Get a couple of bridgeable GFA-555se (200 wpc) at $1,899 each
3. Then get a GFP-915SE preamp, with balance control knob, for $1,100
4. There is a 15% discount off one amp and preamp when purchased together
My dad still has his Adcom stuff circa 1990 and it sounds excellent. Sure it is a revived company today, but it has history. I sold my Adcom stuff long ago.
Regarding XLR-RCA adapters, I would try to avoid them since added connections in the audio signal chain can potentially degrade the signal. Is it audible, I don’t know?

