The Mullard Ecc83 is regarded as the holy grail among the double-triode preamp valves. The extra thick mica spacers support the rugged mechanical construction and the careful TAD quality control procedure ensures performance stability and low microphonics.
The TAD 7025 S delivers rich, harmonically complex tone and midrange warmth that is just outstanding compared to any other currently manufactured tube today.
We recommend this tube for classic british style amps (rather than for modern high-gain amps) as well as for vintage-style open-back combo amps to achieve a stunning complex tone with silky smooth but rich tone.

The TAD 7025 S can replace any ECC83, E83CC, 12AX7, 12AX7A, 12AX7M, 12AX7WA/WB/WC/LPS/EH, 5751 or 7025.

Great for warm clean tones and creamy overdrive. Upgrades 12AX7A and ECC83 tubes. Replaces E83CC tubes.
somewhat warmer in tone than the 7025 Highgrade (RT010) yet open with defined bass response.

tech-tip: especially recommended in second positions or tone stacks in vintage British amps.