Reference Manual
100%
This page intentionally left blank
Table Of Contents
Demonstration mode
Troubleshooting Index
Alesis Limited Warranty
Receiving System Exclusive bulk dumps
Welcome
Introduction
DEQ830 Key Features
How to Use This Manual
This page intentionally left blank
Safety symbols used in this product
Important Safety Instructions
Important Safety Instructions English
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
Symboles utilisés dans ce produit
Instructions de Sécurité Importantes French
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
FCC Compliance Statement
CE Declaration of Conformity
This page intentionally left blank
If you can’t wait to get started…
1Quick Start Guide
Step 1 Hook it up to a mixer
Play some signal into the unit
1 Quick Start Guide
Step 2 Try some equalization
Step 3 Store the Program
Step 4 Save an EQ Curve
Quick Start Guide
1 Quick Start Guide
DEQ830 Diagram
Thermal Considerations in Rack Mounting
Installing in a Rack
2Connections
Unpacking and Inspection
Using the DEQ830 in another country
AC Power Hookup
2 Connections
Unbalanced I/O
Connections
Connecting Inputs and Outputs
Mono connections
2 Connections
Balanced I/O
Operating Levels
Connections
Connecting to the inserts on an instrument amplifier
2 Connections
Analog Signal In, Digital Signal Out
Digital Signal In, Analog Signal Out
Digital Signal In, Digital Signal Out
Connections
About Audio Cables
This page intentionally left blank
2 Connections
3Basics of Equalization
What is equalization?
Channel Level
3 Basics of Equalization
Description of the Front Panel
Band Select
Store
Basics of Equalization
Bypass All ALL
Link PUSH TO LINK
Numerical LED Display
3 Basics of Equalization
Program
Value Encoder VALUE
Edit mode
Description of the Basic Modes
Basics of Equalization
Program mode
Channel Level mode
3 Basics of Equalization
Retrieve Curve mode
Bypass mode
Real Time Analyzer mode
Basics of Equalization
Link mode
Utility mode
Single Band Edit
Basic operation Program mode
Basic operation Edit mode
3 Basics of Equalization
Band Gain Cut/Boost Ranges
Basics of Equalization
Band Solo
Gain Change
3 Basics of Equalization
The Relative Gain display
Basics of Equalization
Multiple Band Edit
Selecting an Edit Group
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
3 Basics of Equalization
The limits of Relative Gain
Basics of Equalization
The Release Edit Group function
3 Basics of Equalization
Basic operation Retrieve Curve mode
Basic operation Store mode
Basic operation Save Curve mode
Basics of Equalization
3 Basics of Equalization
Basic operation Channel Level mode
Basic operation Link mode
Copying settings between channels
Basic operation Real Time Analyzer mode
Using the VALUE encoder in RTA mode
Basics of Equalization
Name
Setting
3 Basics of Equalization
Displayed
Master Level +/- 6 dB
Basic operation Utility mode
Basics of Equalization
Release Edit Group On/Off
3 Basics of Equalization
MIDI Program Change On/Off
Basics of Equalization
Edit Time Out On/Off
MIDI Channel ALL
Fast Program Select On/Off
3 Basics of Equalization
Internal Clock Sample Rate Select 44.1/48
Force Analog Input Auto/Analog
Receiving System Exclusive bulk dumps
Basics of Equalization
Lock mode
The Hidden Modes
3 Basics of Equalization
Demonstration mode
Noise
Equalization Artifacts
Basics of Equalization
Distortion
What makes the DEQ830 unique?
Constant Q vs. Variable Q
3 Basics of Equalization
Constant Q
Basics of Equalization
Variable Q
Multi-bandapplication and results
3 Basics of Equalization
Basics of Equalization
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
This page intentionally left blank
3 Basics of Equalization
Vocal Air
4Applications
General EQ tips
Rock Kick Drum
The answering machine
4 Applications
Filtering effects
Eliminating Feedback
Comb filtering
Settings chart
Applications
Applications
Cleaning
5Troubleshooting
Care and Maintenance
Line Conditioners and Protectors
Cause
5 Troubleshooting
Troubleshooting Index
Solution Test with a known good input
Refer All Servicing to Alesis
Troubleshooting
Obtaining Repair Service
This page intentionally left blank
5 Troubleshooting
Mechanical
Specifications
Rear Panel I/O switchable
Audio Performance
This page intentionally left blank
Alesis Limited Warranty
Warranty / Contact
Alesis Contact Information