The ARC LS-15 is a line stage only and no you can't put a phono module inside it.
Yes, the LS-15 is several steps above your Adcom. The GFP-750 is a nice unit, but not in the same league as the ARC...IMHO.
Yes, the LS-15 is several steps above your Adcom. The GFP-750 is a nice unit, but not in the same league as the ARC...IMHO.