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?

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I use the 6922 version QS preamp with my Mono 120s, and it's a great match. I also use an Audible Illusions M3B but have to use line attenuators to knock back the gain. This combo also sounds awesome. 

I use Aric Audio Super 6sn7 linestage with my QS mono amps. Stunning sound.

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.