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 KT66 Singles Matched Sets
From £40.36 -
JJ KT88 Matched Pairs & Quads
From £87.00
Looking for a complete set of valves?
Crank Up the Feedback
Check out our latest customer reviews
Verified PurchaseThank you Stewart. I have three of the TSL 122 amps with extension cabinets and I love them all. I've been through all the horror of dealing with the main board for years and have the version 20 ion each amp for a while now. The y at least keep the amps running. I recently put one of your boards in an amp and its running great. I have now received my second board and will ordering a third shortly. Thank you for taking care of the Marshall issue!!
Dr. Rand St. Pierre
Verified PurchaseHigh quality product with a friendly and helpful service.
Thank you for your nice feedback. The world is an unfriendly enough place these days so we try to compensate ! 🙂
Verified PurchaseA friendly, personal and professional service every single time. Fast delivery that is very well packaged against damage.
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.