Ampeg Full Revalve Kits / Ampeg SVT CL Harma STR Ruby 6550A Full Upgrade Kit

Ampeg SVT CL Harma STR Ruby 6550A Full Upgrade Kit Ampeg SVT CL Harma STR Ruby 6550A Full Upgrade Kit Click on image(s) above to view larger

All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.

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.
Special Offer 15% Discount

The Harma STR Ruby 6550A upgrade kit is designed to give you SVT Classic reissue head the classic sought after clean and punchy sound than is reminiscent of the vintage SVT.

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 Harma ECC82 STR follows the frame grid style of plate construction which makes it super low in microphonics. The sound is extremely well balanced and transparent. This valve also has less midrange emphasis allowing you to dial in the amount of fatness that you want. It supplies a clear and deep bass response with a fast attack which makes it ideal for those percussive styles of playing

The Ruby 6550A STR is a remake of the classic General Electric 6550A and the Ruby 6550A STR has many upgraded features to replicate the classic General Electric 6550A that was used in the original Ampeg SVT

The valve is manufactured with a stronger anode material with welded plates with copper support rods. Heavy grade straight glass envelope, classic triple solid getter design and metal base ring. The other nice upgrade is thick mica top supports which prevents valve rattle.

Soundwise the Ruby 6550A STR produces an extremely balanced sound with an accurate musical reproduction of all the frequencies. It is very vibrant and has a lively sound with an incredibly clear bass response. It also has plenty of distortion free performance with a very smooth treble response so is a great choice in these super bass amps.

The kit consists of 11 valves

3 Specially selected Harma ECC83 STR
2 Specially Selected Harma ECC82 STR
6 Specially selected Ruby 6550A STR in a matched sextet

Please note that this set is for the valves only



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