The Synergy Marshall JCM800 Preamp Module brings one of the most iconic British amp voices ever made into Synergy’s modular ecosystem with an officially licensed design that captures the raw authority, punch, and articulate overdrive of this legendary amplifier.
Built for guitarists chasing everything from classic 80s hard rock crunch to tighter modern gain sounds, this dual-channel, three-tube preamp module delivers the feel, response, and harmonic bloom that made the JCM800 a legend. Designed in collaboration with Marshall, the Synergy Marshall JCM800 Preamp Module uses a true three-tube architecture with two 12AX7 tubes handling the preamp section and a third 12AX7 powering a built-in 0-watt power amp and phase inverter. That design helps recreate the sag, attack, and amp-like feel players love from a cranked JCM800 head, but in a compact format that works seamlessly with compatible Synergy hosts. Each of the two identical channels includes independent Preamp, Bass, Middle, Treble, Presence, and Volume controls, along with separate Master Volumes for easy rhythm and lead balancing. Synergy also expands on the original formula with a three-position Bright switch, a High/Low Input switch that mirrors the original JCM800 input behavior, and a Cathode Select switch on the PCB for dialing in different tube response characteristics. For players who want authentic Marshall gain with added flexibility and modern modular convenience, this module is a serious tone machine.
Synergy Marshall JCM800 Preamp Module Features
- Authentic three-tube preamp based on the legendary Marshall JCM800 2203/2204 vertical input design
- Official Synergy and Marshall collaboration
- Dual identical channels for flexible rhythm and lead setups
- Independent Preamp, Bass, Middle, Treble, Presence, and Volume controls on each channel
- Independent Master Volume controls for precise channel level balancing
- Three 12AX7 tube design for rich harmonics, dynamic response, and authentic feel
- Built-in 0-watt power amp and phase inverter for more realistic amp-like sag and response
- Three-position Bright switch for tailoring attack and top-end character
- High/Low Input switch recreates the original JCM800 input behavior
- Cathode Select switch on the PCB allows additional control over feel and low-end response
- Easy installation in compatible Synergy preamp docks
- Delivers tones ranging from classic hard rock crunch to saturated modern drive
Synergy Marshall JCM800 Preamp Module Includes
- Synergy Marshall JCM800 Preamp Module
- Manufacturer Warranty
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