I take back what I said about harmonic distortion. I re-read this post and see that it is a tube pre-amp with a solid state power amp.
_________________________
A-LFR/1000-8/500v4x2 coming
1000-2,3,1500-3
100,160,QS10x2,800,M5,M3,M50 v4
had v2
Air N2 (someday)