Having owned 3 pairs of Harbeth's, currently the SHL5+, I agree with tswila that Harbeth's do not sound right with tube amplification. I tried Quicksilver V-4' and Silver 88's and an Audio Research VT100 with both the original SHL5's and the monitor 40's.
They need a good SS amplifier to sound their best. Of course, this is my opinion and YMMV. Good Luck!
They need a good SS amplifier to sound their best. Of course, this is my opinion and YMMV. Good Luck!