The Rockerverb 100H MKII DIVO Embedded comes with the DIVO (Digital Intelligent Valve Optimisation) system pre-installed. All Valve, channel-switching amplifier with ultra-transparent effects loop and valve-driven reverb. The Rockerverb 100 MKII Head DIVO utilises a two stage clean channel with a four stage dirty channel. All valve, foot switchable twin channel, valve FX loop, foot switchable valve reverb, factory fitted DIVO technology.Controls: Reverb, Dirty channel volume, treble, middle, bass and gain. Clean channel treble, middle, bass and volume. 100 Watts.