The AM4 offers a suite of classic and cutting-edge stompbox and studio effects powered by the algorithms of the Axe-Fx III, vetted by so many of the world’s top guitar heroes. You get 77+ Drive models—overdrives, distortions, fuzzes, preamps, and boosts; 79+ Reverbs including plates, springs, halls, rooms, celestial shimmers, and special effects; dozens of Delays from tape and analog to pristine digital; and 150+ options across Chorus, Compressor, Flanger, Phaser, Tremolo, Wah, EQ, Gate, Filter, and more. The surface is fast and familiar—like classic hardware—while hidden Expert Edit pages unlock deeper controls and extensive modifier options for MIDI, pedals, LFOs, envelopes, and even a sequencer.