audio research ref 1/ ls-25 tube question newbie


how critical is "exact" tube matching in the audio research ref 1/ ls-25 pre amps ?

the ref 1 takes 8-6922's, and the ls-25 take 6-6922's... do they have to be dead spot on matched ?
mikesinger

Showing 1 response by velo62

The ls25 takes 4 6922's, I bought a matched quad of EH from tube depot for my LS 25..cost was 30.00 more for the quad. Prefered them to the sovteks that were already there, they seemed less noisy with a blacker background.