dbx ZonePro 640m 6×4 Digital Zone Processor Used

dbx ZonePro 640m 6×4 Digital Zone Processor Used

Out of stock
SKU: DBX640MRMA2 Category:

An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. Full manufacturer’s warranty and free one year extended warranty from Gigasonic.

dbx ZonePRO 640m is a digital zone processor providing 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 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 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.


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

Comprehensive Signal Metering

Front Panel LCD

User-Specified Front Panel Control

Optional ZC Controllers

Ethernet Control

Serial Control

Third Party Control

Wizard-Driven Configuration


Indicators: 4 Independent Six-Segment Lightpipe Output Meters that range from -30 to +20 dBu, Threshold Meters

LCD Display: LCD Display provides information about Source Selection, Page Steering, Zone Volume and Mute

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: >50kΩ Balanced, >25kΩ Unbalanced, RF Filtered; RCA: >25kΩ 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, 150Ω Source Impedance
Mic Preamp Phantom Power: +15VDC

Output: 4 total

Output Connectors: Euroblock

Output Type: Electronically Balanced, RF Filtered

Output Impedance: 120Ω Balanced, 60Ω 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 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

BTU: <92.13

Unit Weight: 6.05 lbs / 2.74 kg

Shipping Weight: 8.2 lbs / 4 kg

Dimensions: 1.75” (1U) x 19” x 7.75” (45mm x 483mm x 197mm)

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