dbx ZonePro 640 - 6-Input/4-Output Digital Zone Processor with 2 Mic/Line Inputs and LCD Display in Black Finish

The dbx ZonePro 640 is a sophisticated 6-input/4-output digital zone processor designed to provide exceptional signal routing, powerful DSP processing, and multiple control interfaces for commercial audio applications. This model stands out for its flexibility and advanced features, tailored to meet the demands of modern audio environments.

Featuring a total of six inputs and four outputs, the ZonePro 640 offers versatile connectivity options. The device includes two balanced mic/line inputs via Euroblock connectors, which allow for seamless switching between mic and line levels, and four unbalanced, mono-summed RCA input pairs. The Euroblock inputs are designed with an impedance greater than 50k? for balanced signals and more than 25k? for unbalanced signals, ensuring optimal signal integrity. The RCA inputs are similarly RF-filtered to minimize interference. Each mic/line input is equipped with hardware-controlled gain, offering a range of 30 to 60dB, and phantom power of +15VDC is available for condenser microphones. The maximum input line levels are +20dBu for mic/line inputs and +12dBu for RCA inputs, catering to a broad spectrum of audio sources.

The ZonePro 640 features a pre-configured architecture that streamlines setup and operation. It incorporates input processing, a central matrix, and output processing, with two configurable input insert positions and one output insert position for specialized processing. This configuration allows for detailed customization of audio processing on individual channels. The device includes the AutoWarmth function, co-developed with JBL, which ensures natural low-frequency extension across all output zones, regardless of signal levels.

A link bus feature enables the duplication of the first six audio channels to another ZonePro device, facilitating scalability and expansion in larger installations. The front panel of the 640 is designed for ease of use, featuring comprehensive signal metering and an informative LCD display. The LCD provides real-time information about source selection, page steering, zone volume, and mute status, while the four independent six-segment lightpipe meters offer visual feedback on output levels, ranging from -30 to +20 dBu.

The ZonePro 640 offers extensive control options to enhance system versatility. It supports Ethernet and serial control, allowing integration with network equipment and third-party control systems. Optional Zone Controllers provide a user-friendly interface for functions such as source selection and volume control. The device also includes a built-in real-time clock for programmable system changes throughout the day or week. For system setup and monitoring, the ZonePro Designer software offers an intuitive interface and a wizard-driven setup process to configure and edit system parameters efficiently.

In terms of performance, the ZonePro 640 utilizes dbx Type IV conversion technology, delivering high-quality audio with a dynamic range of over 113dB A-weighted and 119dB A-weighted with Type IV dynamic range. The device offers a frequency response of 20Hz to 20kHz with minimal total harmonic distortion plus noise (THD+N) of 0.003% at +4dBu. The interchannel crosstalk and crosstalk from input to output are both greater than 80dB, ensuring clean and clear audio. The propagation delay is 0.6 milliseconds, maintaining precise audio synchronization.

The ZonePro 640 is housed in a 19-inch rackmountable chassis with dimensions of 19 x 7.75 x 1.75 inches and weighs 6.05 lbs. It operates on a voltage range of 100-240 VAC and has a power consumption of 29 watts, with a shipping weight of 8.2 lbs.

Overall, the dbx ZonePro 640 offers advanced processing capabilities, flexible control options, and high-quality audio performance, making it an excellent choice for commercial audio systems requiring sophisticated signal management and versatility.

Features

• 6-input/4-output digital zone processor with versatile connectivity
• Two balanced mic/line inputs (Euroblock) and four unbalanced, mono-summed RCA input pairs
• Hardware-controlled microphone gain and +15V phantom power for mic inputs
• Pre-configured architecture with input, central matrix, and output processing
• Two configurable input and one output insert position for tailored processing
• AutoWarmth technology for maintaining natural low-frequency response
• Link bus feature for duplicating audio channels to additional ZonePro devices
• Front panel LCD display with comprehensive signal metering and user-specified controls
• Four independent six-segment lightpipe output meters for visual feedback
• Ethernet and serial control for remote access and third-party integration
• Optional Zone Controllers for intuitive control of volume, source, and presets
• Built-in real-time clock for programmable system changes
• ZonePro Designer software for configuration, control, and monitoring with wizard-driven setup
• dbx Type IV conversion technology for high-quality audio processing
• Dynamic range: >113dB A-weighted, >110dB unweighted
• Frequency response: 20Hz - 20kHz, +/- 0.5dB
• Minimal THD+N: 0.003% typical at +4dBu
• Dimensions: 19 x 7.75 x 1.75 inches; Weight: 6.05 lbs
• Power consumption: 29 watts; Shipping weight: 8.2 lbs

Specifications

Front Panel LED Indicators

• Per Output: 4 Independent Six-Segment Lightpipe Output Meters that range from -30 to +20 dBu, Threshold Meters
• Other: LCD Display provides information about Source Selection, Page Steering, Zone Volume and Mute

Analog Inputs

• Number of Inputs: 6 Total (2) Switchable Mic or Line, (4) Unbalanced, Mono-Summed RCA Input Pairs
• Type: Euroblock (Mic/Line), RCA (Source)
• Impedance (Euroblock): >50kΩ Balanced, >25kΩ Unbalanced, RF Filtered
• Impedance (RCA): >25kΩ Unbalanced, RF Filtered
• Max. Input Line Level: +20dBu Mic/Line, +12dBu RCA
• CMRR: >40dB, typically >55dB @ 1kHz
• Mic Pre Gain: 30 to 60dB
• Mic Input Noise (E.I.N.): <-118dBu, 22Hz-22kHz, 150Ω Source Impedance
• Mic Phantom Power: +15VDC

Analog Outputs

• Number of Outputs: 4 Total
• Type: Electronically Balanced, RF Filtered Euroblock
• Impedance: 120Ω Balanced, 60Ω Unbalanced
• Max. Output Level: +20dBu

A/D Performance

• Type: dbx Type IV Conversion System
• Dynamic Range Line: >113dB A-weighted, >110dB unweighted
• Type IV Dynamic Range: >119dB A-weighted, 22kHz BW: >117dB, unweighted, 22kHz BW
• Sample Rate: 48kHz

D/A Performance

• Dynamic Range: 112dB A-weighted, 109dB unweighted, 22kHz BW

System Performance

• Dynamic Range: >109dB A-weighted, >106dB unweighted, 22kHz BW
• THD+N: 0.003% typical at +4dBu, 1kHz, 0dB gain
• Frequency Response: 20Hz - 20kHz, +/- 0.5dB
• Interchannel Crosstalk: >80dB typical
• Crosstalk input to output: >80dB
• Propagation Delay: 0.6 msec
• Operating voltage: 100 VAC, 50/60Hz, 120 VAC, 60Hz, 230VAC 50/60Hz
• Power Requirements: 29 Watts
• BTU Rating: <92.13 BTU

Physical Dimensions

• Dimensions: 19 x 7.75 x 1.75 inches
• Weight: 6.05 lbs
• Shipping Weight: 8.2 lbs