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In Reply to: Unico Op Amp upgrade posted by drkielbasa on March 22, 2007 at 12:11:46:
I would upgrade the 12au7 preamp tube first and foremost.
A nice vintage Mullard, Amperex Holland or Phillips Holland will sound much better than the stock tube.
Also, I find the OPA627 opamps too lean and tipped-up as compared to most opamps. I do not recommend using it twice in the chain, your system's tonal balance will probably become too thin and wiry.
Good luck
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Follow Ups
- Re: Unico Op Amp upgrade - Carlos 03/24/0722:33:24 03/24/07 (0)