I have tried multiple preamps with my QS mono 60's. A QS Line Stage, a 6SN7 preamp similar to the deHavilland Ultraverve III, a ChiFi preamp based on a Pass design (very quiet, clean, cheap), and another DIY preamp based around a hi quality Burson op amp. All sounded great. I prefer the 6SN7.
Which preamp for Quicksilver mono amps?
Anybody has tried Quicksilver monoblocks with different preamps?
Is Quicksilver preamp a good match?
If not, which preamps have you tried and which do you think work better?