dbx ZonePRO 640m 6x4 Digital Zone Processor

dbx ZonePRO 640m 6x4 Digital Zone Processor
Key Features
  • 6 Inputs / 4 Outputs
  • 4 Balanced Mic/Line Inputs
  • 2 Mono-Summed RCA Input Pairs
  • Wizard-Driven Configuration
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The dbx ZonePRO 640m is a digital zone processor with a fixed I/O, preconfigured architecture, configurable insert processing, and optional duplication of audio to an additional ZonePRO device via a link bus.
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dbx 640m Overview

The dbx ZonePRO 640m is a digital zone processor with a fixed I/O, preconfigured architecture, configurable insert processing, and optional duplication of audio to an additional ZonePRO device via a link bus.

The unit features six inputs with four balanced mic/line switchable terminal block inputs and two unbalanced, mono-summed RCA input pairs. There is hardware-controlled microphone gain per channel. The pre-configured architecture has input processing with 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.

The front panel features comprehensive signal metering, a well-spec'd LCD display and user-specified front panel control. Additional system control is offered in the form of optional zone wall-controllers, which provide simple 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. The Configuration Wizard within ZonePRO Designer guides users through the step-by-step configuration process of the 640m. The dbx ZonePRO 640m ships with a power cord, a set of rack screws, and an RS-232 modem cable.

  • Six inputs and 4 outputs
  • Four balanced mic/line inputs
  • Two unbalanced, mono-summed RCA input pairs
  • Microphone gain per channel
  • Preconfigured 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


UPC: 691991401169

dbx 640m Specs

Indicators4 Independent Six-Segment Lightpipe Output Meters that Range from -30 to +20 dBu, Threshold Meters
LCD DisplayLCD Display Provides Information About Source Selection, Page Steering, Zone Volume, and Mute
InputsInput: 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: >50 Kilohms Balanced, >25 Kilohms Unbalanced, RF Filtered; RCA: >25 Kilhms  Unbalanced, RF Filtered
Max Input: +20 dBu Mic/Line, +12 dBu RCA
CMMR>40 dB, Typically >55 dB at 1 kHz
Mic Gain Range30 to 60 dB
EINMic Preamp Equivalent Input Noise (EIN): < -118 dBu, 22 Hz to 22 kHz, 150-Ohm Source Impedance
Phantom Power for Mic Inputs+15 VDC
OutputsOutput: 4 Total
Output Connectors: Euroblock
Output Type: Electronically Balanced, RF Filtered
Output Impedance: 120 Ohms Balanced, 60 Ohms Unbalanced
Max Output: +20 dBu
AD Conversiondbx Type IV Conversion System
Dynamic RangeA/D Dynamic Range: (Line) >113 dB, A-Weighted, >110 dB Unweighted
Type IV Dynamic Range: >119 dB, A-Weighted, 22 kHz; BW: >117 dB, Unweighted, 22 kHz BW
Digital Output Dynamic Range: >114 dB A-Weighted, 110 dB Unweighted
D/A Dynamic Range: 112 dB A-Weighted, 109 dB Unweighted, 22 kHz BW
Dynamic Range: >109 dB A-Weighted, >106 dB Unweighted, 22 kHz BW
Sample Rate48 kHz
THD+N0.003% Typical at +4 dBu, 1 kHz, 0 dB Gain
Frequency Response20 Hz to 20 kHz, ±0.5 dB
Inter-Channel Crosstalk>80 dB Typical
Propagation Delay0.6 ms
CertificationsUL 600065, IEC 60065, EN 55013, E60065
PowerOperating Voltage: 120 VAC, 60 Hz
Power Consumption: 29 W
Dimensions (W x D x H)19 x 7.8 x 1.8" / 48.3 x 19.7 x 4.5 cm
Weight6.1 lb / 2.7 kg
Packaging Info
Package Weight8.23 lb
Box Dimensions (LxWxH)22.1 x 11.4 x 3.5"
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