Used Walrus Audio ACS1 Effect Processor

The Walrus Audio ACS1 is a reliable and high-quality stereo amp and cab simulator designed to bring studio-grade tone and versatility to your rig—whether you're recording, rehearsing, or performing live. This used unit is in excellent condition and functions exactly as intended, giving you the confidence of consistent performance. With its trio of legendary amp models—Fullerton, London, and Dartford—matched to corresponding cabinet IRs and ambient room controls, the ACS1 offers rich, lifelike sound in a compact and user-friendly format. Features like stereo I/O, assignable footswitches, and MIDI compatibility ensure seamless integration into a variety of setups. The ability to load up to six presets without MIDI and connect via USB-C for firmware updates and custom IRs adds greater flexibility and personalization. Trusted by discerning players, the ACS1 delivers premium tone shaping in a pedalboard-friendly design, making it a smart choice for those seeking professional results without compromise.