Using Almarro 205a MKII to drive Quad 57s?

The 57s can be driven by very low power, my friend uses an amp that puts out less than 10 watts. The stability of the amp is the important thing as the impedance goes under one ohm.

You would have to ask the manufacture, but since it has an output transformer I would think it would be all right. My friend uses a rebuilt Heath tube amp that I think has 8 watts. I was a Quad dealer for years and used several amps besides Quads on them, most of which are long gone from the market; the 63s do not have as low an impedance as the 57s and are easier to use but many prefer the 57s.