Loyola Enterprises

A veteran and minority owned SDB Certified Business.


DBX ZonePro 640m, 641m

757.498.6118 Ext - 109DBX ZonePro 640m - Call for pricing - Processor with face
757.498.6118 Ext - 109DBX ZonePro 641m - Call for pricing - Processor by remote


PDFDBX ZonePro 640m Cut Sheet (pdf)

PDFDBX ZonePro 641m Cut Sheet (pdf)

PDFDBX ZonePro 640m,641m Install Guide (pdf)

PDFDBX ZonePro Brochure (pdf)

The ZonePRO 640m/641m offers fixed I/O, pre-configured architecture, configurable insert processing and optional duplication of audio channels to another ZonePRO device via a link bus.

The 640m/641m features a total of six inputs and four outputs. Inputs include four balanced mic/line switchable terminal block inputs and two mono-summed pairs of unbalanced RCA inputs. Hardware-controlled microphone gain allows adjustment of microphone gain per channel.

The 640m/641m device has a pre-configured architecture with input processing, 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.

A link bus allows duplication of the first six audio channels to another ZonePRO device in applications where aditional output zones are required.

The front panel of the 640m features comprehensive signal metering, an informative LCD display and user-specified front panel control.

The front panel of the 641m features a power status LED, a network traffic LED, and an RS-232 control port.

Additional system control is offered in the form of optional Zone Controllers. This collection of hardware wall-controllers represents a series of simple, elegant user 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.

ZonePRO Designer – the configuration, control and monitoring software for the ZonePRO family of devices – offers control of the ZonePRO 640m/641m via Ethernet or RS-232. The Configuration Wizard within ZonePRO Designer guides users through the step-by-step configuration process of the 640m/641m.


  • 6 Inputs / 4 Outputs
    • 4 Balanced Mic/Line Inputs
    • 2 Unbalanced, Mono-Summed RCA Input Pairs
  • Microphone Gain on Channels 1-4
  • Pre-Configured Architecture
  • Two Configurable Input Insert Positions
  • One Configurable Output Insert Position
  • AutoWarmth® per Output Zone
  • Link Bus
  • Comprehensive Signal Metering (640m)
  • Front Panel LCD (640m)
  • User-Specified Front Panel Control (640m)
  • Optional ZC Controllers
  • Ethernet Control
  • Serial Control
  • Third Party Control
  • Wizard-Driven Configuration

Analog Inputs
Analog Inputs 6 Total; (4) Switchable Mic or Line, (2) Unbalanced, Mono-Summed RCA Input Pairs
Input Type Euroblock (Mic/Line), RCA (Source)
Input Impedance (bal./unbal.) >50 kΩ / >25 kΩ
Max. Input Level +20 dBu Mic/Line; +12 dBu RCA
Input CMRR >40 dB, typ >55 dB @ 1 kHz
Mic Pre Gain 30 to 60 dB
Mic EIN <-118 dBu, 22Hz-22kHz, 150 Ω
Phantom Power 15 VDC
Analog Outputs
Analog Outputs 4 Total
Output Type Electronically Balanced, RF Filtered Euroblock
Output Impedance (bal./unbal.) 120 Ω / 60 Ω
Max. Output Level +20 dBu
A/D Performance
Type dbx Type IV™ Conversion System
Dynamic Range Line (A-weighted/unweighted) >113 dB / >110 dB
Type IV Dynamic Range (A-weighted/unweighted) >119 dB / >117 dB
Sample Rate 48 kHz
D/A Performance
Dynamic Range (A-weighted/unweighted) 112 dB / 109 dB
System Performance
Dynamic Range (A-weighted/unweighted) >109 dB / >106 dB
THD+Noise @ 1 kHz 0.003% typ. @ +4 dBu, 0 dB gain
Frequency Response (±0.5dB) 20 Hz–20 kHz
Interchannel Crosstalk >80 dB
Propagation Delay 0.6 msec
Operating Voltage 100-230 VAC, 50/60 Hz
Power Requirements 29 Watts
BTU Rating <92.13 BTU
Weight 2.74 kg (6.05 lbs)
Dimensions (HxWxD) 4.45 x 48.3 x 19.7 cm (1.75" x 19" x 7.75")
Safety Certifications UL 60065, IEC 60065, E 60065, EN 55013
For pricing options and packages, contact us at
757.498.6118 Ext - 109, Or