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dbx 266xs User Manual

dbx 266xs
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User Manual
Dual Compressor/Gate
Professional Audio Equipment
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dbx 266xs Specifications

General IconGeneral
TypeCompressor/Gate
Number of Channels2
Dynamic Range> 114 dB, unweighted
Input ConnectorsXLR and 1/4" TRS
Input TypeElectronically balanced/unbalanced, RF filtered
Output ConnectorsXLR and 1/4" TRS
Output TypeElectronically balanced/unbalanced, RF filtered
IMD<0.1% SMPTE
CMRR> 40 dB, typically > 55 dB at 1 kHz
Compressor Threshold Range-40 dBu to +20 dBu
Compressor Ratio1:1 to Infinity:1
ControlsThreshold, Ratio, Attack, Release, Output
Frequency Response20Hz - 20kHz
Maximum Input Level+22dBu
Maximum Output Level+21 dBu balanced/unbalanced
Dimensions1.75" x 5.75" x 19"
Weight5.5 lbs
Side Chain Insert1/4" TRS
Noise<-90dBu
THD+N<0.1% @ +4dBu, 1kHz
Crosstalk<-80dB, 20Hz - 20kHz
Interchannel Crosstalk<-80dB, 20Hz - 20kHz
Power Consumption15W
Operating Voltage100-240 VAC, 50/60 Hz
Operating Temperature32°F to 113°F (0°C to 45°C)
Expander/Gate Threshold Range+10dB
Expander/Gate Ratio1:1
Expander/Gate Release Time50ms to 2s
Expander/Gate Attack Time100 μs

Summary

Important Safety Information

Electromagnetic Compatibility

Details the unit's compliance with safety and electromagnetic compatibility standards and directives.

U.K. Mains Plug Warning

Provides essential safety warnings regarding the use of mains plugs, fuses, and socket connections in the UK.

Declaration of Conformity

Lists product specifications, safety standards (IEC 60065), EMC standards (EN 55022), and compliance directives.

Introduction to the dbx 266xs

Common Compressor Applications

Lists and explains typical uses for the compressor function, such as drum fattening and vocal smoothing.

Common Gating Applications

Lists and explains common uses for the gate function, including noise reduction and instrument envelope shaping.

Service Contact Information

Provides details for obtaining technical support, warranty registration, and factory service procedures.

Warranty Information

Outlines the terms of the product's limited two-year warranty, including registration and service requirements.

Getting Started with the dbx 266xs

Rear Panel Connections

Details the rear panel connectors for power, audio inputs/outputs, and sidechain inserts.

Front Panel Controls and Indicators

Explains the function of key front panel controls like STEREO COUPLE, BYPASS, GAIN REDUCTION meter, and OUTPUT GAIN.

Compressor Controls Explained

Details the function of the Compressor THRESHOLD, RATIO, ATTACK, and RELEASE controls and their associated LEDs.

Expander/Gate Controls Explained

Details the function of the Expander/Gate THRESHOLD, RATIO, and AUTO switch controls and their associated LEDs.

Making Connections for the dbx 266xs

Expander/Gate Ratio Control

Explains how to adjust the Expander/Gate RATIO for downward expansion or hard gating effects.

General Connection Guidelines

Provides instructions for connecting the unit to various audio equipment and power sources.

Technical Support and Facts

Technical Support Procedures

Outlines how to get technical assistance, including serial number requirements and shipping instructions for service.

Registration Card and User Feedback

Encourages users to complete and return the registration card for feedback and warranty validation.

Technical Specifications and Block Diagram

Technical Specifications

Provides detailed technical data including input/output levels, frequency response, distortion, noise, and physical dimensions.

Block Diagram

Illustrates the internal signal flow and functional blocks of the dbx 266xs compressor/gate.

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