Marshall Amp Cryo Full Revalve Kits / Marshall 9005 dual mono block 50+50 watt Classic EL34 Retro Cryo full upgrade kit

Marshall 9005 dual mono block 50+50 watt Classic EL34 Retro Cryo full upgrade kit Click on image(s) above to view larger

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Marshall amplifiers are voice of Rock and Roll past, present and in future.These amplifiers have been used by all the music legends. From Clapton's fierce bluesbreaker solos with John Mayall, to the powerhouse slam of Jimmy Page in Led Zeppelin to Steve Jones awesome sound with his JCM800. These Kits are designed and put together to enable you to get the best out of your particular amplifier.
15% Discount

The Marshall 9005 EL34 50+50 dual mono block amplifier Classic Retro Cryo full revalve kit is specially selected for Marshall 9050 50+50 watt valve power amp fitted with EL34 valves. The Classic Marshall kits are designed to give your Marshall as close to the old Mullard tone as possible. This is done by using a combination of classic new old stock and modern day production valves that are traditionally voiced.

The Harma Retro valves really benefit from the sonic improvement that Cryogenic treatment brings to the valves performance. The output distortion is smoother with more detail and clarity under overload conditions. The Rhythm sound is clearer and displays a more transparent quality. Single guitar runs have far more attack and places the notes higher in the mix.
This whole set proves a tighter punchier sound with more attack and better focus when compared to the standard untreated valves.

In the driver stage section we use the following,

The Harma ECC83 Retro Cryo Balanced
This is a specially balanced valve for use as a driver valve.

The Harma ECC83 Retro Cryo is a true sounding recreation of the famous Mullard ECC83. This valve replicates the warm detail and harmonically rich midrange that made the Mullard sound so famous.
The ECC83 Retro Cryo retains the classic Marshall crunch and provides a harmonically rich and detailed sound with an excellent 3 dimensional midrange response.
This valve has a traditional British voiced sound and this valve has the outstanding feature that when it is overdriven it provides a warm sustaining sound with plenty of upper harmonics. This combined with its smooth linear midrange response and extended low frequency response means you get smooth warm overdrive with tight fat punchy lows. This captures that classic vintage Marshall sound better than all the other ECC83/12AX7 that I have tried.

In the output stage we use the following

The Harma EL34-Retro Cryo is based on the famous Mullard EL34 XF2 design and has a number of important features over standard EL34 types. The grids of the tube use a block construction this enables the valve to provide smoother output and eliminating odd order harmonics. The result is a tight bass response with a balanced sound stage and clean clear treble. Thicker glass not only adds strength but also provides lower microphonics. The valve has a slight midrange forwardness giving the sound a full rounded tone when distorted or overdriven.
The Harma EL34 Retro Cryo will suit the vast majority of guitarists from the classic rock player, the hard rock and metal player who want that classic Marshall sound. The EL34 Harma Retro Cryo has also attained a 5 star review in Guitar Buyer magazine therefore making this the ideal valve for the governors' amps.

The set consists of 8 valves

4 Specially Gain selected and balanced Harma ECC83 Retro Cryo
4 Selected and matched Harma EL34 Retro Cryo in a matched quad.

Please note that this kit is for the valves only



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