New Production Accutronics 4EB3C1B Spring Reverb Tank Long (16 ¾") 2 Spring Unit, Long Decay Input Impedance 600 Ohms, Output Impedance 2250 Ohms Mounting: Horizontal Open Side Down Connectors: Input Insulated/Output Grounded Made In South Korea Questions about reverb tanks? Please see Accutronics Products and Specifications.