Ampeg Full Revalve Kits / Ampeg SVT CL Harma 7025 JJ 6550 full revalve kit

Ampeg SVT CL Harma 7025 JJ 6550 full revalve kit Click on image(s) above to view larger

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These Ampeg full revalve kits are put together to provide a sonic upgrade to your Ampeg. I own and have played over the past 30 years Ampeg SVT, Original V4B and for recording used the B15-N portaflex.These amps are still the kings of bass amplifier in my opinion and these kits use the best of New Old Stock valves and modern day production items to give you the best sound out of these lengendary bass amps.
Ampeg SVT Classic reissue head fitted with our Harma 7025-STR Pre amp kit is designed to give your SVT Classic head a clean sound but when run with a fair amount of input gain will give a little valve distortion that will recreate the edge of the original valve vintage SVT.

This set will suit the player who wants to get more of a vintage throaty ampeg valve sound
with plenty of punch with aggressive highs.

The Harma 7025-STR DR250 is a high gain valve selected for bass amps and it will not distort as soon or sound as fizzy as the standard Chinese 12AX7-C. The Harma 7025 therefore offers better performance with this regard. The valve is very well balanced with nice even bass which has plenty of depth with the top end being more aggressive and hard.

The Philips Jan Military Specification ECC82/5814A was made with the highest grade materials and with no compromise on selection or quality control as they were made for the American Government. These valves have a number of unique features such as high grade filament isolation so even after long periods of use the filament will not degrade. Immune to shock and vibration and were also rated for long life. The 5814A has a very clear bass response, which is both tight and musical. The sound is well balanced and good even detail across the audio spectrum with a clear and smooth treble. The sound and build quality is not equaled by any modern day valve. That is why it is used in this kit

The valve when used in conjunction with the extensive tonal shaping of the SVT Classic head it can be used to get the full range of vintage punky Precision bass type clank to a more modern rounded bass sound with a harder edge.

In the output stage we selected and match a sextet of JJ 6550.

The JJ 6550 provides very lively punchy performance with a silky smooth midrange.
The classic ampeg growl was not as pronounced as with the GE, Svetlana or The Harma 6550. The low end bass response is very tight with plenty of depth and detail.
The JJ 6550 is superbly balanced with the mids sitting in the correct position and providing plenty of clear top end detail without being harsh

The kit consist of 11 valves

3 Specially selected Harma 7025-STR DR250
2 Specially selected Philips JAN ECC82/5814A
6 Specially selected JJ 6550 in a matched sextet.

Please note that this is for the valves only



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