All-tube Design with Modeler Flexibility
Reap the rewards of responsive tube tone structures without sacrificing innovative digital modeler sensibility with the Synergy SYN-20IR. This unique head uses the same preamp docking technology found in Synergy’s other units, with one major exception — the tubes. Sporting a portable lunchbox head design, the SYN-20IR is loaded with dual EL84 power amp tubes that, coupled with a Synergy preamp module, create a 20-watt all-tube amplifier equally at home in the studio or on the road. The flexible tonal capabilities aim to create an analog modeling system loved by Sweetwater guitarists looking to sculpt their tone with the flexibility of modern digital rigs and raw tube tone. With one or more preamps, a built-in American-style clean channel, and selectable power amp structures, you’ll have three channels to explore any style from crisp clean to monstrous high gain. Once you’ve dialed it in, save your settings, accessing them via a 3-button MIDI footswitch. Transmit your signal using the customizable IR presets, with outputs for any cabinet and a built-in headphone jack for silent practice. With the SYN-20IR head, you no longer have to compromise analog tube performance for modern technological convenience.
Note: The SYN-20IR requires a Synergy preamp module (sold separately). Please contact your Sweetwater Sales Engineer with any questions.
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Plug-and-play your favorite amps
Available separately, Synergy’s line of preamp modules provides everything you love about iconic amps with unrivaled accuracy in analog form. Each all-tube, 2-channel module is fully equipped with dual 12AX7s with preamp circuitry that matches the legendary amplifier it’s based on. With modules for various brands such as ENGL, Friedman, Peavey, and Morgan, Synergy goes to painstaking lengths to ensure each is represented in the most accurate way possible. This means you get all the features and benefits of each in a form factor that is easily stored and swapped, thanks to the compact size and thumbscrew fastening.


More than a power amp
With a healthy balance of power at 20 watts, the EL84-powered SYN-20IR is effortlessly portable, durable, and endlessly capable. Assign one of three analog power structures to each channel, then layer on one of several built-in IRs, load your own, or run out to your favorite cab. The structures help optimize the amp to whichever preamp is loaded up, altering the contour and feel to the module's tonal needs. Mode A offers a clear yet punchy sound, B provides relaxed mids and bright high end, and C allows for a tight modern feel. Plus, with industry-leading low-latency IR technology built in, you can forgo heavy cabinets in favor of preset or user-loaded IRs run out via a balanced XLR output right on the amp. Use the editor software to dial in the perfect tone and load it right to the head via the USB connection on the back.
Synergy: a tube-fueled alliance
Merriam-Webster defines synergy as "a mutually advantageous conjunction or compatibility of distinct business participants." With Synergy Amplification's assemblage of tube-amp talents such as Dave Friedman (Friedman), Joe Morgan (Morgan), Steven Fryette (Fryette and VHT), Mike Soldano (Soldano), and Peter Diezel (Diezel), the name is a perfect fit. Each product is painstakingly crafted by these titans of the tube-amp world, ensuring every nuance of their legendary amplifiers is translated to your tone. For the most iconic tones in the most convenient package possible, Sweetwater is proud to offer you Synergy Amplification.


Synergy SYN-20IR Features:
- 20W, 3-ch EL84 lunchbox head for use with Synergy preamp modules for portability and versatility
- Analog modeling system allows tone sculpting with the flexibility of modern digital rigs and raw tube tone
- Built-in clean channel and selectable power amp structures help optimize the amp to whichever preamp is loaded up
- Access saved settings via a 3-button MIDI footswitch
- Preset or user-loaded IRs run out via a balanced XLR output right on the amp
- Compatibility with any guitar amp cabinet