Onkyo Digital Integrated Amps

I have not seen the measured data on the 602s, but would, based on the rest of the B&W line recommend a good amp capable of driving lower impedance and high phase angle loads. The 9555 has gotten terrific press, is available at discount and can drive such loads.
Bob's rec makes sense, too, though Rotel is sometimes associated w/B&W. They are corporate cousins.
There are enough differences between NAD and Rotel to make a listen a MUST.

I listen to my system from about 7 feet away, in a condo at low to moderate volumes. I am a little weary of NAD products because of reliability and have owned Rotel in the past. I prefer smooth sound over hyper-detailed.. I would go with a sub and external dac but I am on a tight budget. How important is the dampening factor in driving speakers??

I have onkyo 9555 it sounds really good both with there cd player or marantz KI- PEARL cd player--with APERION SPEAKERS 533T---1METER FRY ON CD THERE SEEMS TO BE A MATCH
WITH WITH ONKYO N APERION--THEN TO REALLY PUT IT OVER THE TOP USE KIMBER 12 TC SPEAKER CABLE, ITS A GREAT MATCH.
THE ONKYO 9555 REALLY IS A GREAT BUY.