Apparently, you have not heard of the David Berning ZH 270. Uses only 4 output tubes, idles at 100 watts, weighs 10 lbs. And will drive any speaker you throw at it(power actually increases, as Ohms decrease). It does not suffer from the traditional "comprimises" as the other OTL's out there, yet retains all of the qualities that make an OTL great. Saxo, I highly recommend you check out the Berning website. It is an incredible product.
Kris
Kris