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Best tube rolling options for VAC Ren MkIII preamp

I have read most VAC threads on Audiogon and pieced together some information on tube rolling for VAC 300.1a and VAC preamps (Renaissance Mk III is what I own). Was hoping to get in one thread others' experience/POV/advice on what the best tube swapping options have been for their VAC gear, or other high end amps/preamps that take similar tubes (e.g., 12AX7, 12AU7, 6sn7), or if stock tubes from VAC ended up being the best choice. Thanks in advance for any insights. If I'm missing an definitive thread on this pls redirect me. Podeschi  (Reviews | Threads | Answers | This Thread) 09-05-11

Responses (1-17 of 17)

Click title to read one, or click date to read all below it. 09-05-11: Jab I have spend a buck full of money on Mullards, Telefunkins, RCA and many more including new JJ, Electro H, and other tubes only to return to VAC stock tubes. I could go on how they all sound but the problem I found was all of these tubes have a strength and a weakness. The most even tubes are the best and that is what VAC selects for their products. Jab  (Threads | Answers | This Thread) 09-05-11   The shugaung black treasure 6sn7 equivalents sound excellent ...   Swampwalker 09-06-11   I agree with jab. i have tried many different nos versions ...   Drrsutliff 09-20-11   I will say putting ken rad 6sn7s in the two outer tube locat ...   Podeschi 02-27-12   Did some swapping this weekend. nothing matches stock tubes ...   Podeschi 02-27-12   Podeschi, i have some ken rads, are they all the same? can ...   Wig 02-27-12   Will do, mr. wig.   Podeschi 02-28-12   Podeschi, how can you come to a conclusion on a nos tube a ...   Knghifi 02-29-12   Not on a nos tube. i didnt need more than an hour with stock ...   Podeschi 02-29-12   Podeschi, i have to disagree with you on this one. in my exp ...   Dev 02-29-12   My recently added seimens 7308s into my ren sig mk2a made a ...   Fplanner2010 02-29-12   Hi fplanner2010, i received mine and just installed them. i ...   Dev 02-29-12   Great!! although we have great vac in common, our systems ...   Fplanner2010 03-01-12   Ok i clearly need to make a second run at this! i would let ...   Podeschi 03-01-12   I should add...what i find hard to replicate is the open ext ...   Podeschi 03-02-12   Hi fplanner2010, okay some initial thoughts with these 2 tu ...   Dev 03-05-12   Dev- glad you like them!! i couldn't believe it either, bu ...   Fplanner2010

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