Mesa Boogie Cryo Full Revalve Kits / Mesa Bass 400+Classic 6L6GC Groove Tube GE RI Cryo Full Revalve Kit

Mesa Bass 400+Classic 6L6GC Groove Tube GE RI Cryo Full Revalve Kit Click on image(s) above to view larger
£502.00
£326.30

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Our Mesa Boogie specially selected Cryo full revalve kits are designed to enable you to get the best sound out of your Mesa Boogie amplifier. These sets consist of specially position selected Cryo treated pre amp valves that have been selected for each position of your Mesa amplifier. In the output stage we use specially cryogenically treated valves that have been selected to work with the Mesa boogies fixed bias arrangement. Certain output valves will be better for certain kinds of music and therefore to make your choice easier we have indicated this in our product description. Mesa Boogie amps have pioneered the way in multi channel high gain amplifiers and with these cryogenically treated valves sets this will take your sound to a new level.
35% Discount


This full revalve kit consists of specially selected Harma ECC83 Retro Cryo pre amp valves and Groove tube 6L6GC GE reissue Cryo output valves which have been burst tested and selected for Mesa Boogie amplifiers.

This set has been designed to give your Mesa more top end transparency and the classic warm tone which many players require out of their Mesa amplifiers.

The pre amplifier valves are specially selected for Mesa amplifiers for low microphonics and gain and the kit includes a balanced valve for the phase inverter position.

The output valves have been specially burst tested under real working conditions to ensure the utmost reliability. The output valves have also been specially selected to run with Mesas non- adjustable fixed bias arrangement.

The Harma ECC83 Retro Cryo pre amp valves offer more harmonic warmth with more transparency in the midrange than 12AX7 Russian 2 or the Electro Harmonix 12AX7. The outstanding feature of the Harma ECC83 Retro Cryo is its smooth linear midrange response and clarity. So you get a smooth warm sound with tight fat punchy lows. This has become our most popular pre amp valve for Mesa amplifiers.

The Groove Tubes 6L6GC GE is a re issue of the famous clear top General Electric 6L6GC. It features the same anode plate design with welded and stapled side bracing. It has extra thick mica spacers which are fixed by the extended anode plate which reduces vibrations, rattle and microphonics which is a problem with many modern 6L6GC.

Sound wise; the Groove Tube 6L6GC Cryo Re issue has the classic American vintage 6L6GC sound.This valve is wonderfully open and transparent with a rounded and full bass sound. The valve is also really responsive to slight EQ tweaks and the Cryo treated version offers more clarity, cleaner more defined bass when compared to the standard item. This setup is possibly the best sound I have had out of my own Mesa 400 plus as whatever musical style or bass that I use all the sounds and tone are easy to dial in.

As these are expensive to revalve as special discount of 35% is on this kit.

The full upgrade kit consists of 16 valves

3 Specially Selected Harma ECC83 Retro Cryo
1 Specially Selected and Balanced Harma ECC83 Retro Cryo
12 Specially Selected Groove Tube 6L6GC GE RI Cryo in two identical sextets

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