Ampeg Full Revalve Kits / Ampeg SVT 2 Pro Harma ECC83 Retro Classic 6550 JJ Full Upgrade Kit

Ampeg SVT 2 Pro Harma ECC83 Retro Classic 6550 JJ Full Upgrade Kit Ampeg SVT 2 Pro Harma ECC83 Retro Classic 6550 JJ Full Upgrade 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.
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Ampeg SVT 2 Pro Classic Retro Full revalve kit is designed to give your SVT 2 Pro a clean sound but with more emphasis on the midrange. This set will suit the player who wants to get more of a vintage valve sound with enhanced midrange warmth.

The Harma ECC83 Retros main feature is its smooth linear midrange and extended low frequency response so you get smooth warm mids with tight fat punchy lows.

The Harma ECC82 Retro is designed on the ladder plate design that was used by Mullard and Philips.

The valve features a small 3 rib centre box section with welded plates with reduces microphonics. The ECC82 Retro 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 valve when used in conjunction with the extensive tonal shaping of the SVT 2 pro can be used to get the full range of modern clean sound right through to a big warm and rounded bass sound.

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 detail. Top end is clear without being harsh.

This valve kit will suit the bass player who wants a classic Ampeg rock sound with plenty of tonal flexibility.

The kit consists of 14 valves

5 Specially selected Harma ECC83 Retro
3 Specially Selected Harma ECC82 Retro
6 Specially selected JJ 6550 in a matched sextet

Please note that this set is for the valves only



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