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We currently have this product in stock and available for dispatch.
Stock Location
| UK Distribution Hub: | 7 |
| Swedish Distribution Hub: | 7 |
| German Distribution Hub: | 7 |
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5-year warranty & 30-day money-back guarantee included
If you decide your order isn't suitable for any reason you can return it - just let us know within 30 days of receiving it. Please keep hold of all the original packaging until you're sure you want to keep the order.
Eligibility for Money Back Guarantee
Important: For hygiene and software licensing reasons, some items are only eligible for our Money Back Guarantee if they are returned to us unused and sealed in the original packaging with all software still "unregistered." Details of exclusions are shown within the product descriptions. Products include:
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We can collect your return for a small fee, or you can send it back to us yourself. The collection fee can be found in the returns information on each product's page on Gear4music.
In the unlikely event that any item in this order is faulty, damaged or incorrect on receipt, notify us within 14 days and we'll arrange a free collection.
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This table provides an overview of your statutory consumer rights, compared with our standard returns policy and optional extended money back guarantee and warranty.
| UK & Europe | EU Standard | Gear4music Standard | Gear4music Optional |
|---|---|---|---|
| Return Period | 14 days | 30 days | up to 180 days |
| Standard delivery charges refunded? | Yes | Yes | Yes, up to 30 days |
| Upgraded delivery charges refunded? | Standard costs only | Standard costs only | Standard costs only |
| Free collection on cancellation | No | No | Yes, up to 30 days |
| Free collection if defective, delivered damaged or incorrect item | Yes, within 14 days | Yes, within 14 days | Yes, within 30 days |
We are unable to accept returns of any custom made items designed to work together as a unique package and some items are only eligible for money back guarantee if they are returned to us unused and sealed in the original packaging. For full information on our returns policy, please refer to our returns and refunds information guide.
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Key Features
The Synergy Marshall JCM800 2-Channel Preamp Module brings one of the most iconic amp voices ever made into a compact, modular format. Based on the legendary 2203 and 2204 circuits, it delivers the aggressive midrange, tight low end, and cutting presence that defined hard rock and metal through the '80s and beyond. It?s the unmistakable British crunch that shaped generations of players, now reimagined for modern rigs without losing the feel or attitude of the original heads.
Loaded with three 12AX7 tubes, this module goes beyond typical preamps by recreating the interaction between preamp and power amp stages, giving you that cranked JCM800 response at any volume. Two identical channels with independent EQ and master controls let you dial in everything from classic crunch to saturated lead tones with precision. With added flexibility like a bright switch, high/low input selection, and cathode options, it captures the raw energy and dynamic response of the original while giving you more control than ever before.
Product Ref: 368574
This module is built around the original Marshall JCM800 2203 and 2204 circuits, known for their cascaded gain stages and unmistakable midrange punch. It’s the sound that powered countless classic records, delivering tight lows, aggressive mids, and a cutting top end that sits perfectly in a mix. From punchy rhythm tones to searing lead sounds, it captures that iconic British character with impressive accuracy, making it a go-to choice for players chasing authentic rock and metal tones.
Unlike standard preamp modules, this design uses three 12AX7 valves to recreate the feel of a fully driven amp. Two tubes handle the preamp section, while a third drives a built-in 0-watt power amp and phase inverter, delivering the sag, response, and harmonic bloom of a cranked head without the volume. This added depth makes it feel more responsive under the fingers, with natural compression and dynamic touch sensitivity that reacts to your playing style.
Both channels are identical and fully independent, each featuring controls for Preamp, Bass, Middle, Treble, Presence, and Volume, along with individual master volumes. This setup makes it easy to balance rhythm and lead sounds while keeping the core tone consistent. You can dial in a tight, articulate crunch on one channel and switch to a higher-gain, more saturated tone on the other, all without compromising clarity or feel.
Additional switching options give you more control than a traditional JCM800. The three-position bright switch lets you adjust attack and clarity, from sharp and biting to smoother, warmer tones. A high/low input switch recreates the original amp’s input behaviour, shifting between classic crunch and higher-gain drive. There’s also a cathode select function on the PCB, allowing you to fine-tune bass response and feel, making it easier to tailor the module to your rig and playing style.
