Get Superior Sonic Performance and Flexibility with the DBX ZonePRO 640m 6x4 Digital Zone Processor The 640m features a total of six inputs and four outputs. Inputs include four balanced mic/line switchable terminal block inputs and two mono-summed pairs of unbalanced RCA inputs. Hardware-controlled microphone gain allows adjustment of microphone gain per channel. 6 Inputs / 4 Outputs 4 Balanced Mic/Line Inputs 2 Unbalanced, Mono-Summed RCA Input Pairs Microphone Gain per Channel Pre-Configured Architecture Two Configurable Input Insert Positions One Configurable Output Insert Position AutoWarmth per Output Zone Link Bus Comprehensive Signal Metering Front Panel LCD User-Specified Front Panel Control Optional ZC Controllers Ethernet Control Serial Control Third Party Control Wizard-Driven Configuration The 640m device has a pre-configured architecture with input processing, a central matrix and output processing. Two input insert positions and one output insert position allow channel-specific insert processing to be configured. AutoWarmth, a psychoacoustic function that maintains full frequency bandwidth even when the signal level has dropped, is permanently available on each output zone. A link bus allows duplication of the first six audio channels to another ZonePRO device in applications where additional output zones are required. The front panel of the 640m features comprehensive signal metering, an informative LCD display and user-specified front panel control. Additional system control is offered in the form of optional Zone Controllers. This collection of hardware wall-controllers represents a series of simple, elegant user interfaces for functions such as volume, source and preset control. All ZonePRO devices can be controlled by third party control systems via RS-232 or Ethernet as applicable (see table for further information). ZonePRO Designer—the configuration, control and monitoring software for the ZonePRO family of devices—offers control of the ZonePRO 640m via Ethernet or RS-232. The Configuration Wizard within ZonePRO Designer guides users through the step-by-step configuration process of the 640m. SPECIFICATIONS Indicators: 4 Independent Six-Segment Lightpipe Output Meters that range from -30 to +20 dBu, Threshold Meters LCD Display: LCD Display provides information about Source Selection, Page Steering, Zone Volume and Mute Input: 6 Total (4) Switchable Mic or Line, (2) Unbalanced, Mono-Summed RCA Input Pairs Input Connectors: Euroblock (Line and Mic) RCA (Source) Input Type: Electronically balanced/RF-filtered Input Impedance: Euroblock: 50k ohm Balanced, 25k ohm Unbalanced, RF Filtered; RCA: 25k ohm Unbalanced, RF Filtered Max Input: +20dBu Mic/Line, +12dBu RCA CMRR: 40dB, typically 55dB @ 1 kHz Mic Preamp gain: 30 to 60dB Mic Preamp Equivalent Input Noise (EIN): -118dBu, 22Hz-22kHz, 150 ohm Source Impedance Mic Preamp Phantom Power: +15VDC Output: 4 total Output Connectors: Euroblock Output Type: Electronically Balanced, RF Filtered Output Impedance: 120 ohm Balanced, 60 ohm Unbalanced Max Output: +20dBu A/D Converter: dbx Type IV conversion system A/D Dynamic Range: (line) 113 dB, A-weighted, 110 dB unweighted Type IV Dynamic Range: 119dB, A-weighted, 22kHz; BW: 117dB, unweighted, 22kHz BW Digital Output Dynamic Range: 114 dB A-weighted, 110dB unweighted Sample Rate: 48kHz D/A Dynamic Range: 112 dB A-weighted, 109dB unweighted, 22kHz BW Dynamic Range: 109 dB A-weighted, 106 dB unweighted, 22kHz BW THD+Noise: 0.003% typical at +4dBu, 1kHz, 0dB gain Frequency Response: 20Hz - 20kHz, +/-0.5dB Interchannel Crosstalk: 80dB typical Propagation Delay: 0.6 msec Operating Voltage: 100VAC 50/60Hz, 120VAC 60Hz and 230VAC 50/60Hz Power Consumption: 29 W BTU: 92.13 Unit Weight: 6.05 lbs / 2.74 kg Shipping Weight: 8.2 lbs / 4 kg Dimensions: 1.75 inch (1U) x 19 inch x 7.75 inch (45mm x 483mm x 197mm) Safety Agency Certifications: UL 600065, IEC 60065, EN 55013, E60065 Manufacturer: DBXModel: ZONEPRO 640MSKU: I434736-10-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.
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