Excellent tubes. Great soundstage.They are the best tubes I've used in my TAD-150 pre.Just wish I had ordered more.
anyone try the Microtech blackburn E813CC?
the very idea of a superior, cooler running long lasting 12ax7 from the Blackburn plant is appealing, but these tubes are relatively expensive, there are rumors of qauality control issues and rumors that the business recently went into receivership. Also, the marketing material implies that they intentionally avoided minimizing microphonics, but the reviews seem to suggest that the tubes settle down after burn in. Anyone try them, and are they actually available?
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