Rock Out with the Best Valves in the Business
Exceptional tone. Superior quality. Unbeatable prices.
Complete Revalve Kits 
Output Valves 
Preamp Valves 
Rectifier Valves 
Hi-Fi and Jukebox Valves Restore Your JCM2000 
Amp Parts 
Fire Up Your Amp with Our Best-Selling Tone Bottles
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JJ ECC83S Preamp Valve
From £15.20 -
ROS-2000 PCB For Marshall JCM2000 Amps
From £220.00 -
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JJ KT88 Matched Pairs & Quads
From £87.00 -
JJ KT66 Singles Matched Sets
From £40.36
Looking for a complete set of valves?
Crank Up the Feedback
Check out our latest customer reviews
Verified PurchaseWorks fines. I put it in a supersonic 60 to reduce gain and hiss. Easy to install, has reduced the hiss a little as expected
Verified PurchaseGreat , Friendly service fron Stewart.
Life is to short not to be friendly and the world is not a friendly place nowadays. SOmebody has to be nice!
Official dealer. Valves tested in-house. 180 day warranty.
Restore Your Marshall JCM2000
Bring your beloved amp back to life with our upgraded replacement PCB board
Available Now
Revive your amp and get rockin'!
The ROS-2000 replacement PCB board for Marshall JCM 2000 amplifiers is here.
A product of painstaking research, rigorous quality testing, and passion for Marshall's legendary rock machines, this drop-in replacement is everything you need to put your amp back in fighting form.
The ROS-2000 stays 100% faithful to the original JCM 2000 tone while improving component life and amp longevity.
Made in the UK. Rocks worldwide.
✔ Permanently Fixes Bias Drift
✔ Resolves Preamp Hum
✔ Reduces Noise
✔ Restores Tone
✔ Built to Last
Because true rockers never die
Marshall Amplification does not endorse this product. It is an entirely independently developed unit. Marshall JCM2000 is a trademark of Marshall Amplification Ltd.