Get Superior Sonic Performance and Flexibility with the DBX ZonePro 640 Digital Zone Processor With 6 inputs and 4 outputs, the DBX ZonePRO 640 provides flexible signal routing, powerful DSP processing, and multiple control interfaces for Commercial Audio applications. Designed for superior system sonic performance and flexibility, the ZonePRO 640/641 deliver high-quality tools in a reliable format. Advanced Feedback Suppression (AFS) AutoWarmth for natural sound at all levels Auto Gain Control and Compression Noise Gating, Notch Filtering, and Bandpass/Crossover Filters Parametric EQ for precise sound shaping Security Lockout and Wall Panel Control RS-232 Control Comprehensive Windows software GUI IEC, UL, and CSA Approvals The ZonePRO models feature Euroblock connectors for balanced signals and RCA connectors for interfacing with consumer equipment, enhancing their usability in commercial settings. The 640 and 641 models offer comprehensive processing tools, from input controls like gain and EQ to advanced functions such as selectable paging microphone processing with Gating, De-Essing, Auto Gain Control, Compression, and Feedback Suppression. The heart of the ZonePRO products lies in their routing module which offers primary source selection, source ducking for paging, and priority override. Output processing is equally robust, designed specifically for commercial applications with features like AutoWarmth—a function co-developed with JBL for natural low-frequency extension at any signal level. Beyond processing, ZonePRO products provide versatile control options, from simple wall panel Zone Controllers for end-user operations like source select and volume control, to advanced control through a built-in Real Time Clock for programmable system changes. For setup and monitoring, the ZonePRO Designer software offers an intuitive interface and a quick setup Wizard to manage all system parameters. The ZonePRO 640 is designed to elevate your Commercial Audio system with its advanced processing, versatility, and control, ensuring a seamless audio experience. vs SPECIFICATIONS Input: 6 total (2 switchable line/mic, 4 RCA source) Input Connectors: Euroblock (Line and Mic), RCA (Source) Output: 4 total Output Connectors: Euroblock Max Input/Output Level: +20dBu (Mic/Line), +12dBu (RCA), +20dBu (Output) A/D Converter: DBX Type IV conversion system Dynamic Range: 113 dB A-weighted (A/D), 112 dB A-weighted (D/A) Sample Rate: 48kHz Frequency Response: 20Hz - 20kHz, +/-0.5dB Power Consumption: 29W Dimensions: 1.75" H x 19" W x 5.75" D Unit/Shipping Weight: 6.8 lbs./8.8 lbs. Safety Certifications: UL 600065, IEC 60065, EN 55013 Manufacturer: DBXModel: 640SKU: I152385-9-WHXEWe are Chuck Levin's Washington Music CenterSince 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.