Marshall Amp Full Revalve Kits / Marshall 9200 dual mono block 100+100 watt Classic 5881 full upgrade kit

Marshall 9200 dual mono block 100+100 watt Classic 5881 full upgrade kit Click on image(s) above to view larger
£210.00
£189.00


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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. Our Classic kits are aimed at giving you the closest to the original Mullard/Marshall sound that has rocked the music world
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The Marshall 9200 5881100+100 dual mono block amplifier Classic 5881 full revalve kit is specially selected for Marshall 9200 100+100 watt valve power amp fitted with 5881 valves. The 5881 loaded in the 9200 provides a deeper bottom end and more highs when compared to the EL34. This set will therefore suit those who want greater tonal variation out of their 9200 power amp.

In the driver stage section we use the following,

The Harma ECC81 STR Balanced
This is a specially balanced valve for use as a phase splitter valve.

The Harma ECC81 STR is a German manufactured new old stock valve that has been specially chosen for its outstanding performance and sound quality. The Harma ECC81-STR has a number of important features that set this valve apart from the current production items. The German engineers used the military designed half flange anode plate. This has 3 support rods which run through the anode plate. This design was specified by the military for military contacts as it reduces vibration and shock in critical applications. This valve has a 22mm glass envelope which makes it very resilient to micro phonics and outperforms all modern ECC81-12AT7 in this regard. Sonically the valve has outstanding performance and plenty of gain to dive the output valves.

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

The Harma ECC83 Retro 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 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 5881 is the original button based Russian military valve that powered the Marshall sound in the mid to late eighties. This valve has bullet proof reliability and proven track record over decades of use in Russian military applications.
This valve was originally designed to withstand 3G as it was used in the servo motors of Russian fighter Jets. These Original 5881 valves are made with highest quality military grade plate material for extended life in the most serve working conditions. So that is a good reason alone for using this valve in your Marshall amplifier. The second reason is the sound; these original 5881 produce a very tight and focused sound with immense attack. When used in Marshalls high gain circuit the valve produces a tight crunchy wall of sound which is very punchy. The bass response is far tighter and clearer and more importantly more extended than an EL34.
If the valve is pushed with the pedals at the front the treble is forward and nicely aggressive without any fuzz. If you scoop out the mids then you still retain the punch and clarity unlike many other 6L6GC types.

In hard rock and metal and fusion terms this is the valve to use as valve has a really aggressive natural tone which will really bring back the kick into your Marshall sound.
This is why Marshall used this valve to power their high gain designs thought the early 1990ís.

The set consists of 12 valves

2 Specially Gain selected and balanced Harma ECC81 STR
2 Specially Gain selected and balanced Harma ECC83 Retro
8 Selected and matched Harma 5881 in two matched quads.

Please note that this kit is for the valves only

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