Im an Audio Research fun and have had in the past dual 51, dual 76 tube amps, D110 solid state amp, sp-9 mkII, sp 15, sp-11 pre amps. now days my taste belongs to sp-11 but still not found the matching amp, do you have some suggestion, my preferences: Audio research brand but any matching amp other brand opinions will be appreciate too
speakers in use, Hartsfield (from Classic Audio Reprod.) JBL 4343b w/charge coupled xvers, Everest

thanks in advance
Cristian