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 Voodoo Amps® Discontinued JCM900 Series Mods & Upgrades


Discontinued - We no longer modify these amplifiers. Various factory issues have proven time consuming to resolve/repair. To date we have absorbed a great deal of time/cost associated with repair(s) of these models, however we can no longer continue to do so & nor do we wish to charge customers for costly repairs. Please note; our Mods do not cause/contribute to noted factory issues. All warranties for Voodoo Mods still apply.

Sorry no exceptions - Any and all units shipped in after 01-09-12 will be returned at sender's expense.

We recommend the Marshall JVM205 / JVM210. By comparison the JVM205/210 is more reliable, parts are readily available and we have several professional musicians touring/using these.


4100 100W
4101 100W 1x12 Combo
4102 100W 2x12 Combo
4500 50W
4501 50W 1x12 Combo
4502 50W 2x12 Combo



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  "We have designed countless Mods since 1998. If you do not see your amp listed please contact us!"



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