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valves for Marshall JCM900 SL-X 50 watt head

Marshall JCM900 SL-X 50W

Valves for Marshall JCM900 SL-X 50 watt amplifier.

The Marshall JCM900 SL-X 50 watt amplifier uses 6 valves to get its amazing tone and power. It was built between 1993 and 1999. It comes with two different types of power valves so be careful. The valve kit comprises:

  • 3 x ECC83 (also called 12AX7) preamp valves.
  • 1 x Balanced ECC83 for the phase splitter position.
  • 2 x Matched 5881 OR 2 x Matched EL34 power valves.

So check whether you have the 5881 or the EL34 version before ordering your upgrade valve kit.

Over time your valves/tubes will lose their tone and their power. A brand new set of valves will get your amp sounding better than ever – especially if they are JJ valves. We always recommend JJ valves for this amplifier. This is because they guarantee you get awesome tone and long life and they don’t cost a fortune. Remember, JJ is one of only five valve manufacturers in the world. So don’t pay higher prices for valves from the same factory that have simply been rebranded by other companies.

Order your valves for the Marshall JCM900 SL-X 50 watt amplifier below and hear the difference.

So restore the tone, the power and the sparkle to your guitar amplifier. Treat yourself to a brand new set of valves today.

  • All of our valves are carefully selected, fully tested and digitally matched.
  • A significant upgrade in valve quality compared with stock valves.
    We offer a variety of shipping options with full tracking and insurance so you can order with confidence.
  • We have 30 years experience so you know you are in safe hands.
  • International shipping – we post all over the world every single day.

Replace the Valves on your Marshall JCM900 SL-X 50 watt head.

If you have any queries about replacing your valves please get in touch. We have over 30 years experience so one of our team will always be happy to help and advise. Remember, this amp comes with either 5881 or EL34 power valves so check your amp before you order.