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