New Production Accutronics 1BB2D1B Spring Reverb Tank Short (9 ¼") 2 Spring Unit, Medium Decay Input Impedance 150 Ohms, Output Impedance 2250 Ohms Mounting: Horizontal Open Side Down Connectors: Input Insulated/Output Insulated Made In South Korea Questions about reverb tanks? Please see Accutronics Products and Specifications.