Mesa Boogie Full Revalve Kits / Mesa Buster Bass 5881 Full Upgrade Kit

Mesa Buster Bass 5881 Full Upgrade Kit Mesa Buster Bass 5881 Full Upgrade Kit Click on image(s) above to view larger
£190.00


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These are specially selected full revalve kits for Mesa Boogie owners. The sets consist of specially position selected pre amp valves that have been selected for each position in your Mesa. We have 2 pre amp kits, Standard gain, to give a warm and fat overdrive and Our Classic kit provides boogie owners with a valve close in tone to the vintage Mullard ECC83. In terms of 6L6GC we have selected sets available that will work with the boogies fixed bias arrangement. Certain 6L6GC will be better for certain kinds of music and these we have indicated in our product description.
This full revalve kit consists of a Standard Gain Pre amp kit combined with the Harma 5881 output valves. This kit is for the Mesa Buster bass combo where fitted with 6L6gc types. It is designed to give your Buster bass a tight clear and well defined bass sound with punchy lows.

The Harma ECC83 -STR is used as it has a number of advantages over other 12AX7 types such as reduced microphonics and better isolation from vibration. This is particularly useful in combo applications such as the buster. The valve is very well balanced with nice even bass which has plenty of depth. The mid range is clean and transparent and has a nice rounded tone.

The Harma 5881 is the original Military grade button based item that Mesa used as the STR-425.This valve is one of the most reliable 6L6 types ever built with decades of use in Military applications. This valve is particularly good for bass applications due to resilience to vibration.
This valve removes the flabby bass associated with the Chinese made STR-440. The 5881 produces a cleaner and punchier mid than the STR-440. The top end performance has a nice snap without being hard.
The Harma 5881 produces a well balanced thick sound that is ideal for Hard rock and funk right through to metal.

The kit consists of 9 valves.

2 Specially Selected Harma ECC83 STR for positions V1 & V2.
1 Specially Selected & Balanced Harma ECC83 STR for V3,
6 Specially Selected Harma 5881/6L6 Military grade in a sextet


Please note that this kit is for the valves only

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