Realistic receiver circa 1971,Pioneer receiver,Yamaha integrated,Nad 3020,Hafler st70,Amber stereo 70,Sumo 9,Bryston 4b,Spectral(100 watt)Grant Lumley,Michaelson and Austin TVA 10,Conrad Johnson MV75a,VTL st 85, Bel Canto EVO 1,Atmasphere s30,Meitner m100 monos,B&K st 200 monos,Sugden ,Creek integrateds, Bell 2418,Blue Circle original mono amps (BC2?),Classe DR 8 mono,and then the ones I have forgotten.