MESA Dual Rectifier Solo Head with diamond plate finish, featuring clean and preamp controls. - Brand: MESA ENGINEERING - Model Name: Dual Rectifier Solo Head - Features: Clean, Loop, Master Volume, Preamp Controls - Design: Diamond Plate Finish - Switches: Power, Noise Switch Thank you for viewing. Mesa Boogie Dual Rectifier solo head I purchased this used and have been using it. Sound check confirmed. This is a still-active model that can be used for live performances immediately. - Brand: Mesa Boogie