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Products > Full Revalve Kits > Marshall JCM 900 Series

These full revalve kits use specially chosen valves to help you attain the sound that you are looking for 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 25 years of experience in selecting pre amp valves for professional musicians who trust their sound to Watford valves.

• NameBrandCommentStockPrice PhotoOrder
• Marshall JCM 900 Series 2500 50 watt EL34 MK2 JJ Full Revalve KitMarshall Amp Full Revalve KitsOur JJ revalve kits consist of a specially selected set of JJ ECC83 S preamp valves combined with selected and matched ...In stock£92.00Buy Now
• Marshall JCM 900 Series 2500 50 watt STR Marshall EL34B Full Upgrade KitMarshall Amp Full Revalve KitsSpecial Offer
  
  The Marshall EL34B & Harma ECC83 STR Full upgrade kit is designed to give a great rock sound with ...In stock£100.00
  £84.00Buy Now
• Marshall JCM 900 Series 2500 50 watt Classic EL34 Retro full upgrade kitMarshall Amp Full Revalve KitsThe Marshall JCM 900 Series 2500 Classic EL34 Retro full revalve kit is specially selected for Marshall JCM 900 Series ...In stock£142.00Buy Now
• Marshall JCM 900 Series 2500 50 watt Relic 12AX7WC Beijing 6N4J Marshall EL34B Full Upgrade KitMarshall Amp Full Revalve KitsEarly Crunch Early Break Up
  
  ** Exclusive offer for Marshall Owners 15% Discount **
  
  At last a set with ...In stock£108.00
  £91.80Buy Now
• Marshall JCM 900 Series 2100 100 watt STR Marshall EL34B Full Upgrade KitMarshall Amp Full Revalve KitsSpecial Offer
  
  The Marshall EL34B & Harma ECC83 STR Full upgrade kit is designed to give a great rock sound with ...In stock£148.00
  £116.00Buy Now
• Marshall JCM 900 Series 2100 100 watt Classic EL34 Retro full upgrade kitMarshall Amp Full Revalve KitsThe Marshall JCM 900 Series 2100 Classic EL34 Retro full revalve kit is specially selected for Marshall JCM 900 Series ...In stock£206.00Buy Now
• Marshall JCM 900 Series 2100 100 watt Relic 12AX7WC Beijing 6N4J Marshall EL34B Full Upgrade KitMarshall Amp Full Revalve KitsEarly Crunch Early Break Up
  
  ** Exclusive offer for Marshall Owners 15% Discount **
  
  At last a set with ...In stock£156.00
  £132.60Buy Now
• Marshall JCM 900 Series 4500 Dual Rev 50 watt Classic 5881 full upgrade kitMarshall Amp Full Revalve KitsThe Marshall JCM 900 Series 4500 Dual Reverb Classic 5881 full revalve kit is specially selected for Marshall J.C.M 900 ...In stock£138.00Buy Now
• Marshall JCM 900 Series 4100 Dual Rev 100 watt Classic 5881 full upgrade kitMarshall Amp Full Revalve KitsThe Marshall JCM 900 Series 4100 Dual Reverb Classic 5881 full revalve kit is specially selected for Marshall J.C.M ...In stock£198.00Buy Now
• Marshall JCM 900 Series 2500 SLX 50 watt Classic 5881 full upgrade kitMarshall Amp Full Revalve KitsThe Marshall JCM 900 Series 2500 SLX Classic 5881 full revalve kit is specially selected for Marshall J.C.M 900 Series ...In stock£163.00Buy Now
• Marshall JCM 900 Series 2500 SLX 50 watt STR Marshall EL34B Full Upgrade KitMarshall Amp Full Revalve KitsSpecial Offer
  
  The Marshall EL34B & Harma ECC83 STR Full upgrade kit is designed to give a great rock sound with ...In stock£116.00
  £100.00Buy Now
• Marshall JCM 900 Series 2500 SLX 50 watt Classic EL34 Retro full upgrade kitMarshall Amp Full Revalve KitsThe Marshall JCM 900 Series 2500 SLX Classic EL34 Retro full revalve kit is specially selected for Marshall JCM 900 ...In stock£167.00Buy Now
• Marshall JCM 900 Series 2500 SLX 50 watt Relic 12AX7WC Beijing 6N4J Marshall EL34B Full Upgrade KitMarshall Amp Full Revalve KitsEarly Crunch Early Break Up
  
  ** Exclusive offer for Marshall Owners 15% Discount **
  
  At last a set with ...In stock£128.00
  £108.80Buy Now
• Marshall JCM 900 Series 2100 SLX 100 watt Classic 5881 full upgrade kitMarshall Amp Full Revalve KitsThe Marshall JCM 900 Series 2100 SLX Classic 5881 full revalve kit is specially selected for Marshall J.C.M 900 Series ...In stock£223.00Buy Now
• Marshall JCM 900 Series 2100 SLX 100 watt STR Marshall EL34B Full Upgrade KitMarshall Amp Full Revalve KitsSpecial Offer
  
  The Marshall EL34B & Harma ECC83 STR Full upgrade kit is designed to give a great rock sound with ...In stock£164.00
  £132.00Buy Now
• Marshall JCM 900 Series 2100 SLX 100 watt Classic EL34 Retro full upgrade kitMarshall Amp Full Revalve KitsThe Marshall JCM 900 Series 2100 SLX Classic EL34 Retro full revalve kit is specially selected for Marshall JCM 900 ...In stock£231.00Buy Now
• Marshall JCM 900 Series 2100 SLX 100 watt Relic 12AX7WC Beijing 6N4J Marshall EL34B Full Upgrade KitMarshall Amp Full Revalve KitsEarly Crunch Early Break Up
  
  ** Exclusive offer for Marshall Owners 15% Discount **
  
  At last a set with ...In stock£176.00
  £149.60Buy Now

Specials

• 
  Primaluna Evo 100 Integrated KT88 JJ Full Upgrade Kit
  KT88 Option with JJ
  
  Special Offer 10% Discount
  
  This upgrade kit is designed to give you a noticeable ...
  £272.00  £244.80
• 
  Primaluna Evo 100 Poweramp KT88 JJ Full Upgrade Kit
  KT88 Option with JJ
  
  Special Offer 10% Discount
  
  This upgrade kit is designed to give you a noticeable ...
  £272.00  £244.80
• 
  Primaluna Evo 200 Integrated KT88 JJ Full Upgrade Kit
  KT88 Option with JJ
  
  Special Offer 10% Discount
  
  This upgrade kit is designed to give you a noticeable ...
  £272.00  £244.80
• 
  Primaluna Evo 200 Poweramp KT88 JJ Full Upgrade Kit
  KT88 Option with JJ
  
  Special Offer 10% Discount
  
  This upgrade kit is designed to give you a noticeable ...
  £272.00  £244.80
• Primaluna Prologue 2£272.00  £244.80
• Primaluna Prologue C£272.00  £244.80
• Primaluna Prologue P£272.00  £244.80