I absolutely prefer EI12Ax7's over all others that I have tried. Crystal clear highs, smooth mid range, excellent bass. Not romantic not cold. Amoung new production tubes these are my 1st choice. Others that I have used include Sovtek (old style and new LPS), EH's, Teslas, and some of Chinese origin. Also, if you get interested in EI's, the Elites are hard to come by but don't let that discourage you as the non elites are just the same tube with a little less screening and hype. And they can be found for less tha $10.00 a tube. On the older EI's I marginally prefer the grey plates over the newer polished plates.
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