Warm Audio TB12 500 Series Microphone Preamp new in box. The item "Warm Audio TB12 500 Series Mic Preamp" is in sale since Thursday, July 16, 2020. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "bracht1" and is located in Athens, Ohio. This item can be shipped to United States.