I've only heard my Rivals with 1 amp + Voltis at the Tampa show for the past 3 years.
My amp is a lowly Primaluna Evo 300 integrated with the following tubes:
Power: 2 KT-150 & 2 GE 6L6's - amp switch on high bias.
Pre: Up front: 1950s CBS Hytrons flanked by a set of Radiotechnique on one side and a pair of Mullards on the other.
The 2 150s give the low end some wallop and the 6L6s have a very well defined midrange.
The CBS Hytron's gave more midrange definition and a bit more 3D.
I've had some "hifi friends" over with more listening experience and all of them are impressed with one stating it is the closest he has heard to live music.
I do have my Rivals on Townshend Podiums as well as some other good components (not super high end) in the chain which of course help.
On paper, the Primaluna is the weak spot of my system but it sounds so damn good I just don't see a reason to upgrade.
I also just move my speakers from about a third into the room to stuffed back in the corners (wider) which made a significant improvement to the bass and enlarged the soundstage - which is now huge, but not fake sounding. Pinpoint imaging suffered from that change but the improved bass and SS are worth the tradoff IMO.


