I use the Lamm ML-1 mono blocks with my Kharma's. They are fantastic. I realize they may not be of "reasonable" price, depending on ones definition of reasonable. I also have a Pathos Twin Towers R/R with a $250.00 capacitor mod that is VERY nearly the equal. The Pathos is a 35w integrated and is a fantastic value IMO( I was able to purchase mine used for $3250.00 on audiogon). There was actually an article in Stereophile several months ago where Sam Tellig makes a similar observation with respect to the Lamm and the Pathos. Kharma and Lamm often win "best of show" for their synergy and I can speak first hand for the synergy of both the Lamm's and the Pathos with these speakers.