Thanks Paul, I was pretty sure that would be the case given that it was a no feedback design, but thought I'd ask in case anyone had had a negative experience. I'll mainly be driving a pair of restored JBL 4320 studio monitors. At 99dB for 1 watt sensitivity , 4 watts will be plenty. The ESLs are really nice for string or woodwind chamber music at a very modest level or for flamenco guitar.I have some Mercury SACDs of the Romeros waiting for the "DHT" treatment.