Hello, Can anyone provide information on which NOS 6922 type tubes you have used or listen to with good result on Audio Research pre amps? I have a Reference one preamp, but any results on ARC tube preamp are welcome. Thanks.
Thank you everyone for your opinion. I will give the NOS tubes a try and swap out the Sovtek's which I think is making the sound bright, everything else seems to be okay, but I with the right NOS tubes it will improve.
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