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Open-Box Synergy Synergy SYN-20IR 20W Tube Guitar Amp Head Condition 1 - Mint

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Overview

All-tube modular amp with impulse response and MIDI control.

The Synergy SYN-20IR 20W tube guitar amp head delivers unparalleled flexibility by combining Synergy’s all-tube modular preamp system with built-in impulse response (IR) technology. Designed for musicians who demand tonal versatility, this amp allows players to swap Synergy preamp modules, each based on legendary amplifier circuits. The built-in clean channel, combined with two additional module channels, creates a fully functional three-channel amp capable of handling any playing style. Whether you're recording, rehearsing, or performing, the SYN-20IR offers studio-grade sound with modern connectivity.

Revolutionary Preamp Module System

The SYN-20IR integrates Synergy’s modular all-tube preamp system, giving players access to officially licensed recreations of classic amplifier circuits. Each module features dual 12AX7 tubes and accurately replicates the tone and feel of its original amplifier counterpart. With an ever-expanding list of modules from industry-leading brands like Friedman, Soldano, Diezel, and more, the SYN-20IR offers limitless tonal exploration without the need for multiple amplifiers.

Selectable Power Amp Structure and Reactance Control

Unlike traditional tube amps, the SYN-20IR features a three-mode Power Amp Structure, allowing players to fine-tune the response of the EL84-driven power section. Mode A delivers balanced negative feedback for a clear and punchy tone, Mode B emulates vintage phase inverter characteristics with relaxed mids and shimmering highs, and Mode C tightens the lows and darkens the highs for a modern, high-gain response. The Reactance control dynamically adjusts presence and midrange for even greater tonal shaping.

Industry-Leading Impulse Response Technology

The SYN-20IR includes a powerful digital IR engine with under 1ms of latency, allowing players to send their signal directly to a mixing board, recording interface, or headphones. With four onboard IR slots and the ability to load custom IRs via the free Synergy Editor Software, this amp provides realistic cabinet simulation for a fully mic’d-up sound without needing a physical speaker cabinet.

Advanced Connectivity and MIDI Integration

Equipped with an XLR balanced output, an ultra-transparent FX loop, and a dedicated headphone output, the SYN-20IR is designed for both stage and studio use. The included 3-button MIDI footswitch allows for real-time switching of amp structures, IR settings, and channel selection. Additionally, the amp supports up to 128 user-programmable presets when connected to an external MIDI controller, ensuring seamless integration into any professional rig.

Features

  • Modular all-tube preamp system with interchangeable Synergy modules
  • 20W EL84 power section with selectable Power Amp Structure modes
  • Built-in clean channel based on vintage American tube combos
  • Ultra-low latency impulse response engine with four IR presets
  • Load and manage custom IRs via Synergy Editor Software
  • MIDI programmable with up to 128 presets and included footswitch
  • XLR balanced output and headphone out for silent playing
  • Universal voltage selector for worldwide compatibility
Specs

Synergy SYN-20IR 20W Tube Guitar Amp Head Specifications:

Power
  • Power output: 20W EL84 tube-driven power amp
  • Tubes: 2 x EL84, 2 x 12AX7 (additional 12AX7 tubes in modules)
  • Voltage: Universal voltage selector for global use
Preamp System
  • Channels: 3 (Clean + 2 preamp module channels)
  • Preamp module compatibility: Official Synergy modules (sold separately)
Impulse Response (IR) Engine
  • Latency: Under 1ms
  • IR Slots: 4 onboard IRs (programmable per channel)
  • IR Loader: Free Synergy Editor Software (USB connection)
Controls
  • Power Amp Structure: 3 selectable modes (A, B, C)
  • Reactance: Dynamic presence control
  • Master Volume: Global volume control
  • MIDI: Up to 128 programmable presets
Connectivity
  • Outputs: XLR balanced, ¼" line output, headphone out with volume control
  • FX Loop: Ultra-transparent series FX loop
  • Speaker Outputs: 1x16 ohm, 2x8 ohm (parallel), 2x4 ohm (parallel)
  • USB: Included 6' USB cable for IR management
Dimensions & Weight
  • Width: 14"
  • Depth: 8.5"
  • Height: 7.5"
  • Weight: 16.4 lb.
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