collapse expand iconDescription

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 to offer superior system sonic performance and flexibility, the 640/641 deliver the highest quality tools available. Even the input and outputs connectors were chosen for their standard usage and reliability. The ZonePRO products offer Euroblock connectors for balanced signals and RCA connectors for interfacing with consumer equipment often used in commercial applications; there is also a simple analog input buss that allows inputs to be sent from one unit to the next for unit and job scalability. The 640 and 641 provide every necessary processing tool, from the input processing like gain control and EQ available on all inputs to highly sophisticated and specific functions such as selectable paging microphone processing including Gating, De-Essing, Auto Gain Control, Compression and Feedback Suppression. The heart of the ZonePRO products is the Routing module that provides of course Primary Source Selection but also Source Ducking for Paging and Priority Override. The outputs also offer a wealth of processing designed for commercial applications like our patent-pending AutoWarmth function that was co-developed with JBL to provide natural low frequency extension at any signal level. Each output also offers EQ, Bandpass and Crossover filters, Limiting and Delay for system optimization. With the ZonePRO every tool is at your disposal to maximize the response of your system.

Beyond processing, the ZonePRO products offer multiple forms of control to further extend the versatility of your system. From easy-to-use wall panel Zone Controllers for standard end-user functions like source select and volume control to advanced system control including a built-in Real Time Clock that can provide programmable system changes throughout the day or week. For system setup and monitoring the ZonePRO Designer software provides an intuitive interface and a speedy setup Wizard for configuring and editing all system parameters.

The ZonePRO 640 will take your Commercial Audio system to the next level with advanced processing, versatility and control.
dbx ZonePRO 640 Speaker Processor
dbx ZonePRO 640 Speaker Processor

collapse expand iconFeatures

  • Advanced Feedback Suppression (AFS)
  • Autowarmth
  • Auto Gain Control
  • Compression
  • Limiting
  • Noise Gating
  • Notch Filtering
  • Bandpass and Crossover Filters
  • Parametric EQ
  • Security Lockout
  • Wall Panel Control
  • RS-232 Control
  • Windows 2000 and XP GUI
  • IEC, UL and CSA Approvals

WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov.

collapse expand iconSpecs

  • (6 total) (2) Switchable line or mic inputs (4) RCA Source
Input Connectors
  • Euroblock (Line and Mic) RCA (Source)
Input Type
  • Electronically balanced/RF-filtered
Input Impedance
  • 50k ohm balanced, >75k ohm unbalanced
Max Input
  • +20dBu Mic/Line, +12dBu RCA
  • >40dB, typically >55dB @ 1 kHz
Mic Preamp gain
  • 30 to 60dB
Mic Preamp Equivalent Input Noise (EIN)
  • <-118dB
Mic Preamp Phantom Power
  • 15V
  • 4 total
Output Connectors
  • Euroblock
Output Type
  • Electronically Balanced, RF Filtered
Output Impedance
  • 120 ohms balanced, 60ohm 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
  • RCA 24-Bit oversampling
Digital Output Dynamic Range
  • >114 dB A-weighted, 110dB unweighted
Sample Rate
  • 48kHz
D/A Dynamic Range
  • 112 dB A-weighted, 109dB unweighted
Dynamic Range
  • >109 dB A-weighted, >106 dB unweighted
  • 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
Unit Weight
  • 6.8 lbs.(3.1 kg)
Shipping Weight
  • 8.8 lbs. (4.0 kg)
  • 1.75" H x 5.75" D x 19" W
Safety Agency Certifications
  • UL 600065, IEC 60065, EN 55013, E60065

collapse expand iconWarranty

2 year warranty for products purchased from us, with the exception of the 480 series.

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