ACS1 AMP LIF IER + CAB SIMUL ATOR I NS T R U CT I O N M A N UA L
The ACS1 is an amplifier and speaker cab simulator delivering the sound and feel of world-class amplifiers, complimentary speaker cabinets, and controllable room size. With the ASC1, players have expansive options to deliver their tone whether it’s on stage, in the studio, or practicing at home. Simple controls, stereo in and out, on-board presets, and MIDI support make the ASC1 an immeasurable tool for a guitarist’s arsenal.
9 volt DC, Center Neg. 300ma min* MIDI Thru Output Left (mono) Output Right Bypass LED Bypass Switch MIDI In Input Left (mono) Input Right Preset/Boost LED Boost Switch *The use of an isolated power supply is recommended for powering all Walrus Audio Pedals. Daisy chain power supplies are not recommended.
CONTROLS Bass - The Bass knob shapes the low end tone stack of the selected amp model. Turn up for a thicker sound and down to help tame muddy pickups. Mid - The Mid knob shapes the mid range tone stack of the selected amp model. Try this control above noon for punchy raw mid range tones and below noon for more classic scooped sounds. Treb - The Treb knob shapes the high frequency section of the tone stack on the selected amp model. Turn up for adding sparkle and down for taming harsh pickups.
The cabs are broken into two groups of three. The “front” three are accessed by simply moving the toggle switch to the desired position. The “back” three are accessed by holding down the bypass switch while moving the cab toggle. To help make this more intuitive, we have laid these out based on the amp we like using them with, but there is no right or wrong.
CONTROLS Amp Switch (Fullerton | London | Dartford) - The Amp switch selects between one of three classic amp models built into the ACS1. Each amp’s circuit topography was meticulously modeled to bring as much feel and character from the amp to the pedal as possible. Fullerton: inspired by the classically bright and clear Fender® Deluxe Reverb. Crisp clean tones with loads of headroom that players have come to love over the years.
Guitar Inputs and Outputs – The ACS1 offers multiple input and output configurations and features true bypass circuity. • Mono In / Mono Out • Mono In / Stereo Out • Stereo In / Stereo Out Headphone Jack - The ACS1 features an on-board headphone output for quite practicing. Simply connect your headphones and adjust the Volume knob to raise and lower the headphone volume. USB - Used to load IR files and update firmware via computer via walrusaudio.io. PRESETS The ACS1 includes 128 total presets slots.
MIDI The ACS1 can be controlled via standard MIDI messages. Simply connect your MIDI controller to the ACS1 MIDI “IN”. Downstream MIDI devices can be connected to the MIDI “THRU” which simply lets all incoming MIDI messages pass through to your other MIDI devices. The ACS1 ships with the MIDI channel set to 1 by default o To assign the MIDI device channel: 1. Hold down both stomp switches at power up then release once the LEDs begin flashing white. 2.
MIDI PRESET MIDI PROGRAM CHANGE (PC) Red 0 Green 1 Blue 2 Accessible via MIDI 3-127 o MIDI CC – Most parameters on the ACS1 can be controlled via MIDI CC messages. The list below shows all applicable MIDI CC numbers and their associated parameters and control values.
GLOBAL PREFERENCES Factory Reset - Use the following procedure to restore the pedal to its factory settings. 1. Hold both stomp switches while applying power. 2. Continue holding both stomp switches for longer than 10 seconds. 3. After 10 or more seconds, release both stomp switches and your pedal is now reset. WALRUSAUDIO.IO Walrusaudio.io is a simple interface to update your pedal’s firmware and to load your own cabinet IRs. To connect to your computer, you’ll need a micro USB sync cable.
UPDATES We occasionally may have new features and updates for the ACS1. These will be made available through: walrusaudio.io Scan the code below to be the first to know when any firmware updates are available.
WALRUSAUDIO.COM Got questions? customerservice@walrusaudio.com. Need a repair? repairs@walrusaudio.com All our pedals come with a limited lifetime warranty. Visit walrusaudio.com/pages/warranty-and-repair for more info.
