Jeff Rowland to what?


I currently own a Jeff Rowland 625 S2 amplifier. I'm curious as to what amplifiers I should listen to below 20K, new or used. I'm not unhappy, but I'm curious. The amp will be driving Monitor Audio PL500 II's. The preamp is a Jeff Rowland Corus.

ricred1
Very interesting indeed. The 735 will be Class AB mono-amps. When my local dealer receives them, I'll be sure to go listen to them. 
Jafant,
"how did you like Vitus Audio?" When I had a little free time I reached out to the Vitus dealer. We agreed that I would bring my Rowland 625 S2 amp and Corus preamp to compare them to the Vitus SAI-30 and SAI-25. Unfortunately he didn't get either back until after I returned to work. I will try again in March during spring break.