Signature Synergy Flexibility in a Compact Combo
Purpose-made for Synergy's trailblazing modular tube preamp ecosystem, the Synergy SYN-20IR gives you the power to build your dream amplifier in a lightweight, stage-ready package. This 12-inch, 20-watt combo amplifier begins with a dual 12AX7 preamp section and an EL84-fueled power section, driving three versatile channels — an onboard American-style clean channel that’s ready to go right out of the box, along with an open slot for loading in your favorite Synergy 2-channel preamp module. Next, the power amp section matches the flexibility of the preamp with three assignable “Structure” voicings and a Reactance control that dynamically shapes your midrange and treble timbres. If you prefer to plug straight in via the SYN-20IR’s balanced XLR output, a powerful onboard DSP engine gives you access to onboard IRs, power amp voicings, and more to ensure your direct tones resound with the utmost authenticity. You also get a 3-button MIDI footswitch for remote control over your channels, Structures, and IRs, along with expanded tone-shaping possibilities via Synergy’s Editor Software. It's all topped off with a lightweight cabinet crafted from solid birch and a Celestion Vintage 30 speaker that imparts a warm, detailed tone, whether you're rocking a squeaky-clean black-panel module or a fire-breathing modern metal beast.
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Two modular channels paired with vintage American cleans
While billed by Synergy as a “Preamp Module Platform,” the SYN-20IR is a full-fledged combo amplifier with plug-and-play tube-driven tones right out of the box. This amp features an onboard clean channel based on the greatest American tube amplifiers of the vintage era, driven by dual 12AX7s in the preamp and an EL84 power tube duo. This flexible setup adds up to a grand total of three channels when you load in a Synergy 2-channel preamp module, offering you unparalleled tonal versatility with authentic valve-powered attitude.


Set the Structure of your power amp
To match the flexibility of its module-based preamp section, the Synergy SYN-20IR boasts three distinct power amp voices via its Structure section, which dramatically alter the overall feel of your sound. Each of the three Structure modes can be independently assigned to one of the Synergy SYN-20IR’s preamp channels, effectively giving you the power to build your ideal tube amplifier circuit. What’s more, the SYN-20IR’s power section also sports a Reactance control that Sweetwater's discerning tone chasers liken to a classic presence knob, shaping the midrange and top end of your signal.
Powerful DSP processing
The Synergy SYN-20IR comes equipped with a powerful 500MHz ARM DSP processor, granting you access to a quartet of top-shelf impulse responses and power amp simulation voices. Plug straight into FOH or your audio interface via the XLR balanced output, and these flexible tone-shaping tools ensure your sound resounds with analog-style authenticity, all with less than 1ms of latency. Plus, Synergy’s Editor Software further expands the SYN-20IR’s potential with 13 included IRs, the ability to manage your IR library, 128 MIDI presets, additional sonic parameters, and more.
Synergy SYN-20IR Features:
- 20W, 1 x 12-in. combo amplifier that utilizes Synergy’s ecosystem of tube-powered preamp modules
- 3-ch. design, featuring an onboard American clean channel and a slot to load in your favorite Synergy 2-ch. preamp module
- Tube-powered design comprises dual EL84 power tubes and a duo of 12AX7s in the preamp section
- Celestion Vintage 30 speaker delivers a versatile tone with a touch of old-school charm
- 3 assignable power amp voicings available via the Structure control to tweak your signal’s overall contour and response
- Reactance power amp control shapes the midrange and top end of your signal
- Powerful 500MHz ARM DSP processor, driving 4 onboard IRs and ultra-accurate power amp simulation with sub-1ms latency
- Balanced XLR out allows you to plug straight into FOH or your audio interface
- Synergy Editor Software grants you access to additional parameters, an intuitive IR library with 13 IRs, 128 MIDI presets, and more
- Included 3-button MIDI footswitch to easily switch between channels, power amp Structures, and onboard IRs
- Lightweight and easily portable cabinet crafted from solid Baltic birch
- Built-in series FX loop with ultra-transparent operation
- Headphone output with dedicated volume control for silent practice sessions
