Used Walrus Audio ACS1 Effect Processor

The Walrus Audio ACS1 is a powerful stereo amp and cab simulator that delivers authentic amp tones and responsive feel in a compact format. This used unit is in excellent condition and performs flawlessly, offering three legendary amp models—Fullerton, London, and Dartford—each with corresponding cabinet IRs and room ambience control. With stereo input and output, assignable footswitches, and MIDI compatibility, it’s ideal for direct rigs and recording setups. Onboard presets (up to 6 accessible without MIDI), intuitive controls, and USB-C connectivity for IR loading and firmware updates make it a versatile and essential tool for guitarists. Whether you're crafting tones at home or performing live without an amp, the ACS1 delivers world-class sound with studio-grade precision.