Product Detail Controllable amp and stompbox loops use external gear Defeat internal amps with the touch of a single button Over 160 Amps, Cabinets, Stompboxes and Effects 14 Heavy-duty metal switches Built-in Expression pedal . The "DigiTech RP1000 Integrated-Effects Switching System" is best product for you. We recommended DigiTech RP1000 Integrated-Effects Switching System