Van Alstine amps and Klipsch

the makes of solid state amps that are known to have a sweeter rounder and less harsh sound would be

pass / first watt - pass class a only

ayre (older models may fit your budget)

accuphase (probably beyond your budget)

classe (older models might fit your budget)

also a primare i30 or sugden integrated would be very nice sounding if you are not whetted to your bel canto pre

I am using Rogue Cronus Magnum iii with Klipsch Cornwall IV very happy with that set up. The Rogue is reasonably priced as well.

van alstine ultravalve would do the job. $1000-1500 amp. out of production. 

When I bought my 700 they had a 30 day trial.you should look into that. I love the bang for the buck van alstene stuff. Happy listening

Van Alstine offered modded Dynaco’s for years. If you could obtain on of the ST-70’s or an SCA-35’s. I really don’t know if their little SS would be too dry, give them a call. Maybe take a look at Quicksilver, They have a sweet little integrated or you could go separates. I have modded Herey II’s and I like them with tubes. I ran mine with a  Rogue RP-1 and a Had Inspire 12 wpc SEP tube amp. I think that you would benefit from tubes in the chain. FWIT the Rogue has a single sub output and 2 pairs of volume controlled pre outs. Happy hunting , Mike B.