You can purchase matched some NOS pre-amp tubes from Kevin Deal at www.upscaleaudio.com, or try the new Tesla tubes (best value) from the folks at www.tubestore.com. Leave the theoretical electrical analysis to the amateur physicists. Matched tubes that have been pre-tested for your specific pre-amp will image and balance significantly better. Let your ears be the judge.
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- 8 posts total
- 8 posts total