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Products > Full Revalve Kits Cryo > Marshall JCM 900 Series Cryo

These Cryo treated full revalve kits use specially chosen and Cryo Treated valves to help you attain the best sound from your amplifier. The valves have been specially chosen for their sound characteristic. They are specially position matched as to their function in your amplifier.They are selected for gain, triode balance, low noise and microphonics.These kits are backed by over 16 years of experience in selecting pre amp valves for professional musicians who trust their sound to Watford valves. The Cryo Treated valves give improvements in clarity,tonal definition and richer smoother distortion. These kits are the ultimate upgrade regardless of brand name.

• NameBrandCommentStockPrice PhotoOrder
• Marshall JCM 900 Series 2500 50 watt STR Marshall EL34B Cryo Full Upgrade KitMarshall Amp Cryo Full Revalve KitsSpecial Offer 20% Discount
  
  The Marshall EL34B & Harma ECC83 STR Cryo Full upgrade kit is our best-selling kit as ...In stock£150.00
  £120.00Buy Now
• Marshall JCM 900 Series 4500 Dual Rev 50 watt STR Harma 5881 Cryo Full Upgrade KitMarshall Amp Cryo Full Revalve KitsSpecial Offer 20% Discount
  
  The Harma ECC83 STR & 5881 Cryo Full upgrade kit is our best-selling kit as it ...In stock£154.00
  £123.20Buy Now
• Marshall JCM 900 Series 4100 Dual Rev 100 watt STR Harma 5881 Cryo Full Upgrade KitMarshall Amp Cryo Full Revalve KitsSpecial Offer 20% Discount
  
  The Harma ECC83 STR & 5881 Cryo Full upgrade kit is our best-selling kit as it ...In stock£226.00
  £180.80Buy Now
• Marshall JCM 900 Series 2500 SLX 50 watt STR Harma 5881 Cryo Full Upgrade KitMarshall Amp Cryo Full Revalve KitsSpecial Offer 20% Discount
  
  The Harma ECC83 STR & 5881 Cryo Full upgrade kit is our best-selling kit as it ...In stock£180.00
  £144.00Buy Now
• Marshall JCM 900 Series 2500 SLX 50 watt STR Marshall EL34B Cryo Full Upgrade KitMarshall Amp Cryo Full Revalve KitsSpecial Offer 20% Discount
  
  The Marshall EL34B & Harma ECC83 STR Cryo Full upgrade kit is our best-selling kit as ...In stock£176.00
  £140.80Buy Now
• Marshall JCM 900 Series 2100 SLX 100 watt STR Harma 5881 Cryo Full Upgrade KitMarshall Amp Cryo Full Revalve KitsSpecial Offer 20% Discount
  
  The Harma ECC83 STR & 5881 Cryo Full upgrade kit is our best-selling kit as it ...In stock£252.00
  £201.60Buy Now
• Marshall JCM 900 Series 2100 SLX 100 watt STR Marshall EL34B Cryo Full Upgrade KitMarshall Amp Cryo Full Revalve KitsSpecial Offer 20% Discount
  
  The Marshall EL34B & Harma ECC83 STR Cryo Full upgrade kit is our best-selling kit as ...In stock£244.00
  £195.20Buy Now

Specials

• 
  Fender Superbassman 300 Harma STR Ruby 6550A Full Upgrade Kit
  
  
  Special Offer 15% Discount
  
  The Fender Superbassman 300 Harma STR Ruby 6550A full upgrade kit is designed ...
  £356.00  £302.60
• 
  Celestion G12 V Type 70 16 Ohm
  *To price match call us*
  
  The Celestion V Type is a new speaker that delivers a combination of the Vintage 30 ...
  £77.08  £68.00
• 
  Earthquaker Plumes Overdrive Pedal
  I love Tubescreamers and I simply Love the Earthquaker Plumes Overdrive Pedal.The Plumes works superbly when going into ...
  £99.17  £90.83
• 
  Maxon OD808X Overdrive Extreme Tube Screamer
  Special Offer 1 only
  
  The Maxon OD 808 Overdrive is the closest in sound to the original TS808 Tube ScreamerThe ...
  £99.19  £90.00
• Fender Blues Junior £126.00  £113.40
• Mesa Subway Rocket 4£201.00  £180.90
• Laney LC15R Groove T£126.00  £113.40