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)
