Chuck, even single ended Class A amps are capable of respectable power out-put. The solid state single ended Class A Pass Aleph 1's power ratings: 150 Watts > 8 Ohms, 300 watts > 4 Ohms, 600 Watts > 2 Ohms. Of course these amps were expensive exceptions to the norm. The less expensive Monarchy solid state SE 100 single ended Class A power amps power rating: 100 Watts > 8 Ohms, 200 Watts > 4 Ohms. The Monarchy hybrid tube/solid state single ended Class A SE 160's power rating: 160 Watts > 8 Ohms, 320 Watts > 4 Ohms. Needles to say I can't personaly verify these quoted ratings. There does seem to be some confusion about Monarchy's most recent 250 Watt Class A/AB hybrid's power ratings.