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Mesa Boogie Full Revalve Kits / Mesa Express 5.25 Plus Harma E84L STR BT Full Upgrade Kit
.jpg "Mesa Express 5.25 Plus Harma E84L STR BT Full Upgrade Kit")
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All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.
All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.
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 Harma ECC83 STR combined with the Harma E84L output valves and is for the Mesa Express 5.25 Plus amplifier. It is designed to give your Mesa Express more clarity, smooth warm overdrive with tight fat 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. The valve is very well balanced with nice even bass which has plenty of depth. The mid range is clean and transparent which removes the mush and fizz that happens when Boogies are overdriven.
In the output stage we use the Harma E84L as this has proved to be one of the most reliable EL84 in Mesa amplifiers that we have used. This is the special burst tested version of the E84L that is tested on the rig built for Brian May for the ultimate reliability.
The Harma E84L is a high quality special application military valve that has a rugged construction and thick glass which reduces microphonics and rattles in all guitar combos. The valve produces a deep clear bass response, clear mids and smooth highs.
The valve produces the maximum clean headroom out of any current EL84 providing a rich warm overdrive sound when distorted.
The kit consists of 7 valves.
4 Specially Selected Harma ECC83 STR for positions V1,V2,V3 & V5.
1 Specially Selected & Balanced Harma ECC83 STR in V4,
2 Specially Selected Harma E84L Burst Tested in a matched pair
Please note that the kit is for the valves only
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