Check the listing for details. Walrus Audio Mako Series ACS1 Amp & Cab Simulator Pedal. Condition: Used. Listed at 359.99 USD. Three Classic Amp Tones, Cabinet Simulation, and Much More With the Walrus Audio Mako Series ACS1 amp and cab simulator pedal, you can ditch the amplifier and speaker cabinet while taking supreme control over your tone. It packs the sound and touch response of classic guitar amplifiers and their complementary cabinets, with direct output to inject your tone to your sound system or recording interface. When used in stereo mode, you can use the same amp model for both channels, or you can apply a different amp model to each channel. Complete with amp-like EQ and Gain controls, plus MIDI control for more advanced rigs, the Walrus Audio Mako Series ACS1 is a smart choice whenever — and wherever — you need to go direct with your guitar tone.