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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
podeschi OP
303 posts
 
I will say putting Ken Rad 6sn7s in the two outer tube locations of the 300.1a gives energy and low end presence without taking away from pristine, smooth clear highs this amp naturally offers.
podeschi OP
303 posts
 
did some swapping this weekend. nothing matches stock tubes for clear clean highs on vac 300.1a. anyone want to buy barely used (1 hour) 2 matched pairs of Ken Rad 6sn7s drop me a line.
wig's avatar
wig
1,274 posts
 
Podeschi,

I have some Ken Rads, are they all the same? Can you send me some pics to wiggy924@yahoo.com?
podeschi OP
303 posts
 
Will do, Mr. Wig.
knghifi
1,668 posts
 
Podeschi,

How can you come to a conclusion on a NOS tube after 1 hour of listening? I guess you don't believe in break-in period? :-):-)
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