What is your favorite class A amp and why? There are many here on Audiogon... Levinson, Krell, Pass Labs, Plinius and an occaisional Accuphase A50V. I am driving Proac Response 3.8s (88dB efficiency). I recently auditioned a Pass Aleph 5 and was stunned by the presentation at only 60wpc.
The Kinergetics KBA-75 may be the best value in this area, they can be had for $500-$650 and while not the best of the bunch here, are cheap for a starting point.
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