for some friends of mine.
It's rated for 35 watts. i'm thinking it would run a pair of 421s pretty well.
A vertical cabinet with the drivers over and under and the amp at the top. I know the 421s are rated for 150 watts. But i just have a gut feeling the pair would be pretty impressive running 4ohm at 35 tube watts.



http://www.greatplainsaudio.com/vint...spec_sheet.pdf