You may have already decided, but, having used all tubes, all SS, and mixing Tubes with SS, then finally buying the Plinius sa 103's and bi-amping with NAT Symmetrical Tube pre-amp, I'm vary vary close to nirvana when listening to music. The SA 103's are shot gunned to B@W 802D's. Wiring is important, so I use Acoustic Zen. These two products, NAT and Plinius, are not talked about much, but I would recomment them to anyone who's not rich and love's music. Best of luck in your search.