Reference Manual
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Table Of Contents
Receiving System Exclusive bulk dumps
Troubleshooting Index
Alesis Limited Warranty
Demonstration mode
Introduction
Welcome
DEQ830 Key Features
How to Use This Manual
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Important Safety Instructions English
Important Safety Instructions
Safety symbols used in this product
12.Use only with a cart, stand, bracket, or table designed for use with professional audio or music equipment. In any installation, make sure that injury or damage will not result from cables pulling on the apparatus and its mounting. If a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over
Instructions de Sécurité Importantes French
Symboles utilisés dans ce produit
12.N’utilisez qu’avec un stand, ou table conçus pour l’utilisation d’audio professionnel ou instruments de musique. Dans toute installation, veillez de ne rien endommager à cause de câbles qui tirent sur des appareils et leur support
Sicherheit Symbole verwendet in diesem Produkt
12.Verwenden Sie ausschließlich Wagen, Ständer, oder Tische, die speziell für professionelle Audio- und Musikinstrumente geeignet sind. Achten Sie immer darauf, daß die jeweiligen Geräte sicher installiert sind, um Schäden und Verletzungen zu vermeiden. Wenn Sie einen Rollwagen benutzen, achten Sie darauf, das dieser nicht umkippt, um Verletzungen auszuschließen
CE Declaration of Conformity
FCC Compliance Statement
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Step 1 Hook it up to a mixer
1Quick Start Guide
If you can’t wait to get started…
Step 3 Store the Program
1 Quick Start Guide
Step 2 Try some equalization
Play some signal into the unit
Quick Start Guide
Step 4 Save an EQ Curve
DEQ830 Diagram
1 Quick Start Guide
Unpacking and Inspection
Installing in a Rack
2Connections
Thermal Considerations in Rack Mounting
2 Connections
AC Power Hookup
Using the DEQ830 in another country
Connecting Inputs and Outputs
Connections
Unbalanced I/O
Operating Levels
2 Connections
Balanced I/O
Mono connections
Connecting to the inserts on an instrument amplifier
Connections
Digital Signal In, Digital Signal Out
Analog Signal In, Digital Signal Out
Digital Signal In, Analog Signal Out
2 Connections
About Audio Cables
Connections
2 Connections
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What is equalization?
3Basics of Equalization
Band Select
3 Basics of Equalization
Description of the Front Panel
Channel Level
Link PUSH TO LINK
Basics of Equalization
Bypass All ALL
Store
Value Encoder VALUE
3 Basics of Equalization
Program
Numerical LED Display
Program mode
Description of the Basic Modes
Basics of Equalization
Edit mode
Bypass mode
3 Basics of Equalization
Retrieve Curve mode
Channel Level mode
Utility mode
Basics of Equalization
Link mode
Real Time Analyzer mode
3 Basics of Equalization
Basic operation Program mode
Basic operation Edit mode
Single Band Edit
Band Solo
Basics of Equalization
Band Gain Cut/Boost Ranges
3 Basics of Equalization
Gain Change
Selecting an Edit Group
Basics of Equalization
Multiple Band Edit
The Relative Gain display
3 Basics of Equalization
see fig. 1 on page 38. But it wont stop at 12 it will keep racing upward until it reaches 24. This is because that’s how far the band that was set to -12dB had to travel until it hit the “ceiling,” or + 12 dB see fig
Basics of Equalization
The limits of Relative Gain
3 Basics of Equalization
The Release Edit Group function
Basics of Equalization
Basic operation Store mode
Basic operation Save Curve mode
Basic operation Retrieve Curve mode
Copying settings between channels
Basic operation Channel Level mode
Basic operation Link mode
3 Basics of Equalization
Basics of Equalization
Using the VALUE encoder in RTA mode
Basic operation Real Time Analyzer mode
Displayed
Setting
3 Basics of Equalization
Name
Basics of Equalization
Basic operation Utility mode
Master Level +/- 6 dB
3 Basics of Equalization
Release Edit Group On/Off
MIDI Channel ALL
Basics of Equalization
Edit Time Out On/Off
MIDI Program Change On/Off
Force Analog Input Auto/Analog
3 Basics of Equalization
Internal Clock Sample Rate Select 44.1/48
Fast Program Select On/Off
Basics of Equalization
Receiving System Exclusive bulk dumps
Demonstration mode
The Hidden Modes
3 Basics of Equalization
Lock mode
Distortion
Equalization Artifacts
Basics of Equalization
Noise
3 Basics of Equalization
Constant Q vs. Variable Q
What makes the DEQ830 unique?
Variable Q
Basics of Equalization
Constant Q
3 Basics of Equalization
Multi-bandapplication and results
To further illustrate the differences, here is a pair of examples in which three adjacent bands have settings of + 3 dB, -3dB, and + 3 dB, respectively
Basics of Equalization
3 Basics of Equalization
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Rock Kick Drum
4Applications
General EQ tips
Vocal Air
Eliminating Feedback
4 Applications
Filtering effects
The answering machine
Applications
Settings chart
Comb filtering
Applications
Line Conditioners and Protectors
5Troubleshooting
Care and Maintenance
Cleaning
Solution Test with a known good input
5 Troubleshooting
Troubleshooting Index
Cause
Obtaining Repair Service
Troubleshooting
Refer All Servicing to Alesis
5 Troubleshooting
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Audio Performance
Specifications
Rear Panel I/O switchable
Mechanical
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Warranty / Contact
Alesis Limited Warranty
Alesis Contact Information