dbx ZonePRO 641m 6×4 Digital Zone Processor

dbx ZonePRO 641m 6×4 Digital Zone Processor


The dbx ZonePRO® 641m is a commercial rack mounted audio mixer that offers flexible signal routing, strong DSP processing and several control interfaces for commercial audio applications with 6 inputs and 4 outputs, all controlled by ZonePro Designer software (running on a laptop or desktop computer) via an ethernet or serial connection.

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SKU: DBXZPRO641M Category:
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The dbx ZonePRO 641m 6 x 4 Digital Zone Processor delivers flexible signal routing, strong DSP processing and several control interfaces for commercial audio applications with 6 inputs and 4 outputs.

The 641m is designed to deliver ultimate sonic performance and flexibility. All input and output connectors were chosen based on their standard usage and reliability. Four Euroblock connectors (switchable) provide balanced microphone or line signals, along with two stereo RCA connectors for consumer equipment interfacing; there is also a simple input bus that allows inputs from one ZonePRO unit to another, allowing for unit and job scalability.

The outputs also come with a variety of processing choices that are ideal for commercial use. For example, to give natural low frequency extension at any signal level, dbx’s patent-pending AutoWarmth® function, which was co-developed with JBL, was included. For system optimization, each output has EQ, Bandpass and Crossover filters, Limiting, and Delay.

ZonePRO Designer software, as well as wall panel control, may control the dbx ZonePRO 641m zone processor through RS-232 and Ethernet. With the ZonePRO, you have every tool you need to maximize your system’s response. Get yours right now from Gigasonic.


  • 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
  • Optional ZC Controllers
  • Ethernet Control
  • Serial Control
  • Third Party Control
  • Wizard-Driven Configuration


  • Indicators Network Traffic, Power
  • 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: >50kO Balanced, >25kO Unbalanced, RF Filtered; RCA: >25kO 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, 150O Source Impedance
  • Mic Preamp Phantom Power +15VDC
  • Output 4 total
  • Output Connectors Euroblock
  • Output Type Electronically Balanced, RF Filtered
  • Output Impedance 120O Balanced, 60O 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
  • 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
  • Dimensions 1.75” (1U) x 19” x 7.75” (45mm x 483mm x 197mm)
  • Unit Weight 6.05 lbs / 2.74 kg
  • Shipping Weight 8.2 lbs / 4 kg
Weight 8.2 lbs