The Friedman IR-D dual-channel tube preamp is an entire Friedman rig in a compact pedalboard-friendly package. IR-D boasts two fully independent identical foot-switchable channels which are based on Friedman's legendary Dirty Shirley/Twin Sister designs. This Dave modded JTM45 circuit delivers the signature British tone for which Friedman is known for. Powered by two high-voltage 12AX7 preamp tubes, each channel delivers the harmonic richness and touch response of Dave Friedman's finest designs. DSP IR cabinet/power amp simulation sends a studio-quality mic'd-up tone to your DAW or Front-of-House. The IR-D provides easy-to-use controls without complex menus and 100-page manuals.