The JCM 800 pre-amp emulates the tone of the classic Marshall’s JCM 800, using the same circuit schematic that you will find in the most famous British Amps from the ’80s. This circuit has been developed to recreate all the gain and tone from the famous Marshall’s JCM 800 Pre-amps, replacing the vacuum tubes for the JFET J201. This design includes five trimmers to bias the JFET according to your taste and pads to use standard through-hole J201 or the more available and reliable SMD version. It is powered by six J201 and has controls for bass, mids, treble, master, level, and gain. This wide-ranging, British-flavored overdrive can be pushed well into the high-gain territory and is perfect for your pedalboard.

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