Best mellow sounding 12ax7 for Thor TA-1000 preamp


I just bought  Thor TA-1000 and am very impressed with the resolution but want it to be more mellow sounding... Darker and less treble emphasis. Can anyone recommend the most musical but mellow/organic 12ax7 for the Thor? When I bought it the unit has telefunkens. The outputs are already mullards so I am focused on the inputs.

It is feeding vtl mb-185 signature amps and quad esl63 with vandersteen 2wq subs.

Thanks!
montaldo

Showing 1 response by hew

I have used Full Music 12ax7 in my TA-1000 for last three years and there is not a hint of brightness. They seem to pair well with a pair of cryoed Mullard 6201 that I also use in the unit.