Bogren Digital Ampknob BDH 66o6+ (ESD); guitar amp simulation; based on a heavily modified “plus” version of a late-generation high-gain amp from around the year 2000; custom circuit modifications requested by Jens Bogren give this amp its aggressive, responsive character with a biting tone that stands in stark contrast to the sterile sound of many modern high-gain amps; delivers punchy mids, sharp attack, and deep saturation; built-in boost pedal tightens the low end and pushes the input for added intensity; speaker, mic, and recording chain expertly configured for instant results; users can load their own impulse responses or completely bypass the built-in cab simulation; IRDX technology models speaker dynamics using machine learning for a lifelike playing feel; standalone version includes an integrated riff recorder, programmable metronome with tempo and time signature changes, and precision tuner; streamlined user interface designed for distraction-free workflow