Ampeg Full Revalve Kits / Ampeg SVT 2 Pro Harma-STR 6550A Retro full revalve kit

Ampeg SVT 2 Pro Harma-STR 6550A Retro full revalve kit Click on image(s) above to view larger
£306.00
£275.40

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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.
10 % Discount



Ampeg SVT 2 Pro Harma-STR Pre amp kit is designed to give your SVT 2 Pro a clean sound but without enhancing any particular frequency. This set will suit the player who wants to get a nice clean and well balanced sound and this will suit the majority of Ampeg owners.

The Harma ECC83 STR is a very well balanced with nice even bass response which has plenty of depth. The mid-range is very transparent which when changing pickup selection or using different basses gives a nice tonal variation that was lost in some other valves.

The treble has nice punch which can sound clanky if required when used in conjunction with the extensive tonal shaping of the SVT 2 pro.

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 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 equalled by any modern day valve. That is why it is used in this kit

The Harma 6550A has a rich warm transparent sound and supreme reliability.
The valve has a number of important features .It uses special thick mica with internal bracing and spacing supports with full length anode heat wings to aid cooling capacity and provides improved heat transfer.

he plate is constructed out of high temperature laminated alloy with an industrial grade glass envelope to prevent microphoney. The control grid wire is made of gold with a special coated screen grid to improve reliability.

This is certainly the best sounding 6550 that I have found in the Ampeg SVT in both original and PCB units in over many years of use.

The valves when used in conjunction with the extensive tonal shaping of the SVT 2 pro
is best suited to bass player that wants a cleaner punchier sound with more versatility to shape the Ampeg’ s tone

The kit consists of 14 valves

5 Specially selected Harma ECC83-STR
3 Specially selected Philips JAN ECC82/5814A
6 Specially selected Harma 6550A Retro in a matched sextet


Please note that this is the valves only.

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