Thanks, Richard, although you overstated the wattage of my SET monoblocks (actually 12 wpc). They have driven the Ref 3s with no problems or clipping or over 4 years. Another friend who heard mine bought a pair of the same amps from the designer/builder. I'm also using the Gallo subwoofer amp on the speakers' second voice coils, so the SETS don't have to deliver the goods below about 42 Hz.
The amps do have huge Magnequest trannies and I think this contributes strongly to their ability to control the Ref 3s. They have three tubes per side -- 845 outputs, EL34 (or KT77) drivers, and 6N7 (or ECC31) inputs. Solid state rectification. I listen at fairly moderate volumes, but in a quite large room (18x40'). Good luck, Dave.
The amps do have huge Magnequest trannies and I think this contributes strongly to their ability to control the Ref 3s. They have three tubes per side -- 845 outputs, EL34 (or KT77) drivers, and 6N7 (or ECC31) inputs. Solid state rectification. I listen at fairly moderate volumes, but in a quite large room (18x40'). Good luck, Dave.