I have a Quicksilver Line Stage Preamp (12AT7) mated to an Odyssey Khartago Stereo. Overall I like it. Way too much gain but I digress. Weeks after receiving it I rolled in a few different tubes, kinda fun to color the sound signature. I liked rhe RXA black plates I got and those stuck around for more than a year. They started going microphonic and making noises so I ordered another pair (noisy) then another different vendor (blasts of white noise) and another set that arrived today (one is noisy as holy hell and one seems fine).
So where does one order preamp quality tunes that are quiet? Is there something I’m not requesting when ordering? Maybe dump snd go solid state? I’m trying to be humorous because I’m pissed. Ha.
I have used 12AU7 tubes in that Quicksilver to lower the gain! You should do a little research on your gear before making a purchase. There is nothing wrong with that QS preamp. You mismatched the amp and preamp!