I would look at the input/output impedance between amp and pre. Then see what ohm setting your amp is in relation to the speakers. Check to see if there is a more harmonious setting for the two as a combo. Good luck.
VAC amps-grainy ?
gentlemen- i own the vac pa 35/35 triode tube amp w/killer n.o.s. tubes. a dealer of s.e.t. wavac amps told me that he felt vac's were grainy ?! i've never felt this or heard this before. i hold him of my idea of replacing the volume control function on my AA ddev3.0 dac. it can sound sligtly hard when really pushed. i'm going to replace it with the ft audio lw-1 passive line stage. my speakers are the smooth-sounding silverline sonatinas. i also have the smooth shunyata blk mamba&sidewinder powers cords. any comments on the source of this hardness in my system or the vac being "grainy". thanks mike mwalsdor@cscc.edu