The Walrus Audio ACS1 MKII is the next evolution of amp and cabinet simulation, delivering studio-quality tone in a compact, pedalboard-friendly design. It gives players access to six meticulously modeled amplifiers and twelve high-resolution cabinet IRs with the ability to load custom impulses via USB-C. Whether recording direct, playing live, or practicing silently, the ACS1 MKII delivers authentic amp tone without compromise.
Inside, it features 24-bit/48kHz converters and powerful SHARC and ARM processors, ensuring natural dynamics, clarity, and realism. Its intuitive layout includes a three-band EQ, stereo in/out, noise gate, boost switch, and onboard reverb. The updated display and preset system make switching between tones effortless, with three onboard slots and up to 128 available through MIDI. It’s ideal for guitarists seeking professional flexibility without the weight or volume of a traditional rig.
Designed and assembled in the USA, the ACS1 MKII includes a headphone output for silent monitoring and offers full stereo routing, letting you run separate amp models left and right. Built for both stage and studio use, it’s durable, responsive, and inspiring—Walrus Audio’s ultimate tone solution for modern players.
Body & Construction
- Dimensions: 4.9″ × 2.52″ × 2.64″ (124.5 × 63.5 × 66 mm)
- Weight: 0.36 kg (0.79 lb)
- Rugged anodized metal enclosure with compact form factor
- Designed and built in the USA
Controls & Interface
- Amp Models: Six selectable amp voices inspired by vintage and modern tones
- Cab IRs: Twelve built-in cabs with custom IR loading via USB-C
- EQ: Three-band Bass, Mid, Treble control
- Boost Switch: Engages a clean gain boost
- Reverb: Room, Hall, and Spring modes for added ambience
- Presets: Three onboard; up to 128 via MIDI
- Stereo Input/Output: Independent left/right amp and cab configuration
- Display: Clear screen for amp selection and editing
Other Details
- Power: 9 V DC (center-negative), 300 mA minimum
- Audio Quality: 24-bit / 48kHz conversion, 32-bit internal processing
- Headphone output for silent practice
- Bypassable amp and cab sections for flexible routing
- True stereo operation with relay switching
