The dbx ZonePRO 641 is a 6-input, 4-output digital zone processor engineered for commercial audio systems, offering flexible signal routing, advanced DSP processing, and multiple control interfaces. Designed for professional environments like restaurants, retail, conference rooms, and houses of worship, the 641 ensures high-quality sound, scalability, and reliable operation.

Featuring Euroblock connectors for balanced signals and RCA inputs for consumer devices, the 641 delivers all necessary processing tools, including input gain control, EQ, Auto Gain Control, Noise Gating, Compression, Limiting, and advanced paging microphone processing. Its Routing module provides primary source selection, source ducking for paging, and priority override.

Each output includes AutoWarmth®, co-developed with JBL, ensuring natural low-frequency extension at any signal level, plus EQ, Bandpass, Crossover filters, Limiting, and Delay for system optimization. Multiple control options include wall panel controllers, RS-232 control, and ZonePRO Designer software for easy setup and monitoring.

The dbx ZonePRO 641 maximizes your commercial audio system’s performance with advanced processing, versatile control, and professional-grade sound quality.

Key Features

  • Advanced Feedback Suppression (AFS™) – Reduces unwanted audio feedback

  • AutoWarmth® – Maintains natural low-frequency response at any volume

  • Auto Gain Control – Stabilizes microphone and line-level signals

  • Compression & Limiting – Professional dynamics control for all inputs

  • Noise Gating & Notch Filtering – Eliminates unwanted noise and hum

  • Bandpass & Crossover Filters – Optimizes audio for each output zone

  • Parametric EQ – Precise tonal adjustment for all channels

  • Security Lockout – Prevents unauthorized changes to system settings

  • Wall Panel Control – Simple in-room control of volume and sources

  • RS-232 Control – Integrates with third-party automation systems

  • Windows® GUI (2000 & XP Compatible) – Intuitive configuration interface

  • Certified Safety Standards – IEC, UL, and CSA approvals

dbx ZonePro 641 Downloads

Specifications

Input (6 total) (2) Switchable line or mic inputs (4) RCA Source
Input Connectors Euroblock (Line and Mic) RCA (Source)
Input Type Electronically balanced/RF-filtered
Input Impedance 50k ohm balanced, >75k ohm unbalanced
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) <-118dB
Mic Preamp Phantom Power 15V
Output 4 total
Output Connectors Euroblock
Output Type Electronically Balanced, RF Filtered
Output Impedance 120 ohms balanced, 60ohm 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 RCA 24-Bit oversampling
Digital Output Dynamic Range >114 dB A-weighted, 110dB unweighted
Sample Rate 48kHz
D/A Dynamic Range 112 dB A-weighted, 109dB unweighted
Dynamic Range >109 dB A-weighted, >106 dB unweighted
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
Unit Weight 6.8 lbs.(3.1 kg)
Shipping Weight 8.8 lbs. (4.0 kg)
Dimensions 1.75” H x 5.75” D x 19” W
Safety Agency Certifications UL 600065, IEC 60065, EN 55013, E60065
List price: $805.00
Price: $805.00
SKU: DBX641V
Catalog: 
Processors & DSP
Brand: 
DBX
Dimensions: 22 in × 8 in × 3 in
Weight: 9 lb