ZonePro 640


ZonePro 640 Advanced Feedback Suppression (AFS™) - Image

Advanced Feedback Suppression (AFS™)

ZonePro 640 Autowarmth® - Image


ZonePro 640 Auto Gain Control - Image

Auto Gain Control

ZonePro 640 Compression, Limiting & Noise Gating - Image

Compression, Limiting & Noise Gating

ZonePro 640 Notch Filtering - Image

Notch Filtering

ZonePro 640 Bandpass and Crossover Filters - Image

Bandpass and Crossover Filters

ZonePro 640 Parametric EQ - Image

Parametric EQ

ZonePro 640 Security Lockout - Image

Security Lockout

ZonePro 640 Wall Panel Control and RS-232 Control - Image

Wall Panel Control and RS-232 Control

ZonePro 640 IEC, UL and CSA Approvals - Image

IEC, UL and CSA Approvals

Specs & Downloads

Item# DBX640V


6x4 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 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.

General Specifications

(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)
Mic Preamp Phantom Power
4 total
Output Connectors
Output Type
Electronically Balanced, RF Filtered
Output Impedance
120 ohms balanced, 60ohm unbalanced
Max Output
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
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
Safety Agency Certifications
UL 600065, IEC 60065, EN 55013, E60065


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

Documents & Downloads

Reviews and Q&A

Customer Reviews

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