Quick view Model: 640M DBX ZonePRO 640M 6x4 Digital Zone Processor DBX MSRP: Now: $748.00 Was: The DBX ZonePRO 640m is a digital zone processor with a fixed I/O, preconfigured architecture, configurable insert processing, and optional duplication of audio to an additional... Add to Cart MSRP: Now: $748.00 Was: Add to Cart Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: Now: $748.00 Was: Subtotal: Add to Cart