Easy, Instant Upgrade for Your Studio The ART Tube MP Studio V3 is a hybrid solid-state and tube preamp/DI box that delivers exquisitely rich and harmonically complex 12AX7A dual triode tube sound to any audio source. It uses ART’s proven V3 (Variable Valve Voicing) Technology, allowing you to select from various professionally crafted stock presets that instantly color its tone to suggested settings for many different sound sources. The Tube MP Studio V3 also utilizes an auto-gain function known as OPL (Output Protection Limiting) technology and an analog VU meter, making it a total cinch to set and maintain ideal levels. Finally, with both XLR and 1/4-inch inputs and outputs, +48V phantom power, variable gain up to +70dB, and phase reverse switching, Sweetwater studio engineers agree that the ART Tube MP Studio V3 is one of the easiest, most cost-effective ways to upgrade your studio.Get fast results with V3 ThePreamp DI Box with +48V Phantom PowerOutput Protection LimitingPhase Reverse SwitchingVariable Valve VoicingVariable Gain