he Tube MP Studio V3 features ART's new V3 (Variable Valve Voicing) Technology -- found only in ART microphone preamplification systems. V3 provides optimized reference points to begin the recording process. The V3 presets were created and fine-tuned by some of the industry's top studio and live-sound engineers, along with our veteran engineering department. V3 allows you to select between a multitude of preamp settings designed for guitars (electric and acoustic), keyboards, bass guitars, drums,...