Synergy Marshall JMP Preamp Module with 20IR Amplifier Head
Marshall amplifiers have powered rock for generations, shaping modern music with their iconic roar and defining the sound of legendary guitarists worldwide. The SYNERGY SYN-20IR is an All-Tube, IR Equipped, 20w amp with a 3-Channel Preamp Module Platform.
4.3
3 Reviews
0% Interest
Payment Plan
Don’t sell your soul to a creditor to get the gear you need. At AMS, we want to lower the barriers to create. That’s why we offer in-house 0% financing, and you don’t even have to open a new line of credit! Spread out payments on your credit card to simplify financing and avoid hefty late fees or service charges. Cost shouldn’t interfere with your creativity.
Earn rewards every time you shop at AMS. You'll collect points on eligible purchases that turn into promotional savings on future gear, with points typically available several days after your order ships. All you need is a free AMS account — no credit card, financing, or payment plan required.
The more you shop, the more you earn. Create a free account and start earning from your very first eligible purchase. Rewards are applied as a discount on future eligible purchases.
Earn points on eligible purchases with AMS Rewards and turn them into savings on future orders, no credit card required. You can apply points at checkout once they’re available.
Eligible to earn $64.70 for this purchase
OR
12 Payments of $107.91
6 Payments of $208.33 +$44.95 down No Credit Check
Compare
Compare! Here are all the serial numbers of this model we have in stock. Compare them all and select your favorite!
Opt in for Notifications on this product for the price drops, stock changes and promotions
Synergy SYN-20IR All-Tube Modular Head with IR and MIDI The Synergy SYN-20IR packs a collection of vintage tones into a sleek, 20-watt head. From the rich saturation of a Marshall stack to the pristine clarity of a Fender Twin, this modular system delivers iconic sounds with modern convenience.
Synergy Marshall JMP 2-Channel Preamp Module When rock legends needed that earth-shaking roar, they cranked their Marshall Plexi amps to eleven. Now, Synergy and Marshall have bottled that lightning in a preamp module that delivers the growl, bite, and soul of a cranked JMP at any volume. This isn't just another preamp — it's your direct line to the sound that built rock 'n' roll.
Synergy Marshall JMP The Plexi Powerhouse The JMP module packs serious punch with its dual-channel design and innovative "0-watt power amp" circuit. Think of it as fitting an entire Marshall stack into a compact module that sits perfectly in your rack or modular setup.
Dual Independent Channels: Two identical channels give you everything from sparkling cleans to thick, harmonically rich distortion. Each channel features Volume 1 (bright input), Volume 2 (normal input), and independent Bass, Middle, and Treble controls.
60s/70s Era Switches: Toggle between the rounder, smoother tone of early '60s JMPs or the tighter, more aggressive bite of '70s models. It's like having two legendary amps in one module.
0-Watt Poweramp Circuit: This isn't just a preamp — it includes a phase inverter and transformer that captures the dynamic response and harmonic complexity of a cranked Marshall without the ear-splitting volume.
Synergy Marshall JMP Preamp Module with 20IR Amplifier Head
Item #:
SYN MARSHJMP20IR
Manufacturer Part Number:
SYN MARSHJMP20IR
UPC:
763815134093
Customer Reviews
4.3
Based on 3 reviews
5
2
4
0
3
0
2
0
1
0
Search reviews
Rating
All ratings
Robert S. 🇺🇸
Verified Buyer
So…. 3 stars. I used it
So…. 3 stars. I used it a day and sent it back. I used it as a traditional amp into a 2x12 with greenbacks. I also tried it with its IRs through the headphone jack. I have a real JMP as well. The module may have been fine, but the EL84 power section sucks. I’m done trying EL84 amps. Fuzzy. Minimal n...
Published date
05/11/26
Was this review helpful?
0
0
James C. 🇺🇸
Verified Buyer
This amp is great. Only
This amp is great. Only had it for about a week but the built in clean sound is very usable. The Marshall module is great very tweakable which you need because the amp needs to be dialed in again at different volume levels. I’ve only tried one other module the SLO II. Worst thing about this amp is d...
Published date
04/07/26
Was this review helpful?
0
0
Todd P. 🇺🇸
Verified Buyer
Tone monster!!!
Recently made the move into the Synergy eco system with the Syn20ir head. What a fantastic unit. Want to play live. Want to play live and run a feed out to the FOH. Got it. Want to play into your DAW? Go ahead. Want to use your headphones, yes you can do that too. Want to not use your speaker cabine...
This website uses cookies to enhance user experience and to analyze performance and traffic on our website. We also share information about your use of our site with our social media, advertising and analytics partners. View our Privacy Policy.
Privacy Preference Center
Privacy Preference Center
Your Privacy
Your Privacy
When you visit our website, we store cookies on your browser to collect information. The information collected might relate to you, your preferences or your device, and is mostly used to make the site work as you expect it to and to provide a more personalized web experience. However, you can choose not to allow certain types of cookies, which may impact your experience of the site and the services we are able to offer. Click on the different category headings to find out more and change our default settings according to your preference. You cannot opt-out of our First Party Strictly Necessary Cookies as they are deployed in order to ensure the proper functioning of our website (such as prompting the cookie banner and remembering your settings, to log into your account, to redirect you when you log out, etc.). For more information about the First and Third Party Cookies used please follow this link.
More information
Strictly Necessary Cookies
Strictly Necessary Cookies
Always Active
These cookies are necessary for our website to function and cannot be switched off in our systems. They are usually only set in response to your requests for services, such as setting your privacy preferences, logging into your account, or filling in forms. You can manually set your browser to block or alert you about these cookies, but it will prevent parts of our site from working as expected. These cookies do not store any personally identifiable information.
Performance Cookies
Performance Cookies
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us identify which pages are the most and least popular and see how visitors move around our site. All the information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies, we will not know when you have visited our site and will not be able to monitor its performance.
Functional Cookies
Functional Cookies
These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, then some or all of these services may not function properly.
Sale of Personal Data
Sale of Personal Data
Under the California Consumer Privacy Act, you have the right to opt-out of the sale of your personal information to third parties. These cookies collect information for analytics and to personalize your experience with targeted ads. You may exercise your right to opt out of the sale of personal information by using this toggle switch. If you opt out we will not be able to offer you personalised ads and will not hand over your personal information to any third parties. Additionally, you may contact our legal department for further clarification about your rights as a California consumer by using this Exercise My Rights link.
If you have enabled privacy controls on your browser (such as a plugin), we have to take that as a valid request to opt-out. Therefore we would not be able to track your activity through the web. This may affect our ability to personalize ads according to your preferences.
Targeting Cookies
Targeting cookies collect information for analytics and to personalize your experience with targeted ads. These cookies may be used to build a profile of your interests to show you relevant ads on other sites. They do not store specific personal information but are based on uniquely identifying your browser and internet device.
You may exercise your right to opt out of the sale of personal information by using the toggle switch in this menu. If you opt out of targeting cookies, we will not offer you personalized ads or share your personal information with any third parties. If you have enabled privacy controls on your browser (e.g., Global Privacy Control), we will automatically opt you out of targeted advertising and the ads you see will not be personalized.
