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Quick Overview

Highest gain 12AX7, great for hard rock and metal. . Also see Ruby 12AX7ACZ HG.


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  • JJ ECC83


The JJ ECC83S / 12AX7 is perhaps the most consistently high gain of all 12AX7's. Given the gain, it is generally very low noise and microphonics. The JJ ECC83 has darker sound characteristics and great for metal and hard rock. Also known as the Groove Tubes ECC83-S and Ruby 12AX7ACZ HG. Same grade as Ruby 12AX7ACZ HG.

Customer Reviews

King of High Gain! Good for 80's Metal Review by Omar
Tons of Gain and Punch. Very thick mids. Big bass response. Highs are not harsh but with all the gain on them you will loose some definition and articulation. This is an 80's Metal tube. (Posted on 5/24/14)

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