RCA 6as7

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One thought on “RCA 6as7

  1. Overall a very good tube. It’s warmer, but not mushy, compared to 6080 tubes I tried, so if you are looking for this type of sound, RCA is a great tube. HF is good, but not great. Svetlana 6as7 produced a better transparency due to the HF not rolling of as soon as RCA. If you are using a bright tube (Telefunken, Mazda) as drivers for the 6as7, RCA might be your ticket to a great balance.

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