In Reply to: Simple.... posted by mkuller on May 19, 2012 at 16:39:23:
indeed, there is something to this. i bought a used high end preamp that came with 12AU7s. it sounded ok - and the soundstage was very narrow and tall (my system usually produces a wide stage). i figured out that the preamp was designed for 12AX7s. bingo! with 12AX7s instead of 12AU7s the soundstage was waaay wider. amazing difference from a tube switch.
-andre d
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Follow Ups
- RE: Simple.... tubes contribute - adaug 05/20/1211:02:44 05/20/12 (0)