The Friedman IR-D is a compact all-tube preamp pedal delivering the signature crunch of the Dirty Shirley and Twin Sister amps. This pedal features two channels with boost for four distinct gain stages, from clean to saturated distortion. It includes onboard IR cabinet simulation with 13 Friedman cabinet IRs, and allows for custom IR loading via software. With its intuitive controls and MIDI capabilities, the IR-D provides a versatile, studio-quality tone for any pedalboard.