IS you pre-amp SS or tube?
If tube, any amp with 60K or greater input impedance might offer an improvement. I seem to recall that most of the amps you have had might not fall into that category for best match to a tube pre-amp but not certain.
IF a SS, you might have to drop more bucks to really upgrade. Not sure. Boulder is the one line I have heard that I would consider in this case.
If tube, any amp with 60K or greater input impedance might offer an improvement. I seem to recall that most of the amps you have had might not fall into that category for best match to a tube pre-amp but not certain.
IF a SS, you might have to drop more bucks to really upgrade. Not sure. Boulder is the one line I have heard that I would consider in this case.