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There's nothing basic about our sound. Unlike competition, they all come tested, matched and burnt in at no extra cost, ensuring the most reliable and highest quality sound. The JJ ECC83S / 12AX7 Preamp Vacuum Tubes provide harmonically rich sound with low noise and microphonics. With its balanced midrange, it brings exceptional clarity a
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Retubed my amp with all JJs and it fixed the hum and it sounds great. If you are on a budget, no worries, these are cheap and result in a nice chimey clean and a great saturation that is touch sensitive and cleans up nicely with guitar volume.
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Don · Today
Purchased two trio matched sets for my Bogner Shiva. I had one for the reverb already, (it needs 7 preamp tubes!). These were a great combo for the JJ EL34's!
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Baiba · October 26, 2026
Great, quality tubes.
Great price.
Customer service has been absolutely phenomenal,
Definitely my tube supplier from now on