The JHS Pedals AT is Andy Timmons signature overdrive pedal. The AT+ is identical to he AT pedal except for an independent foot-switchable Boost - Essentially creating a second channel and gain stage for the pedal. The boost side of the AT+ is a slightly dirty and overdriven pre-boost that allows you to hit the front end of the AT drive channel and achieve more saturation and definition for applications where you need more. Since the Boost is independent, it can be used alone to drive your amp or other drive pedals in conjunction with the AT+ drive channel. Video: https://youtu.be/K9c_cIcULsIProduct Specs Item Number: 23735 Make: JHS Pedals Model: AT+ Andy Timmons Plus Signature Overdrive Condition: Brand New Finish: Red Categories: effects-and-pedals ⇒ overdrive-and-boost ⇒ pedal Function: Distortion PreAmp Made In: United States MPN: JHS-AT+ UPC: 650415211999 Modular Grid: Pedals ⓘ + Dimensions*: 70 mm wide 122 mm high Power*: 15 mA / 9 V DC / Negative Center * User contributed details