Anyone out there still using old amps from Rotel, Nad, etc. How do they compare to modern amps? I managed to acquire a Rotel RB960BX power amp to add to my HT system. My multi-channel amp is the Marantz SR5600 and although it sounds fairly good with music, the Rotel seems to dig out more detail and creates a bigger soundstage. I am planning on getting a second Rotel and bridging them in mono mode. Any opinions on this?