Reference Manual
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Table Of Contents
Chapter Four Applications
Welcome
Introduction
DEQ230 Key Features
13.BYPASS button
DEQ230D only
How to Use This Manual
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Important Safety Instructions
Important Safety Instructions English
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
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
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1Quick Start Guide
Step 1 Hook it up to a mixer
If you cant wait to get started
Play some signal into the unit
1 Quick Start Guide
Step 2 Try some equalization
Step 3 Store the Program
Quick Start Guide
1 Quick Start Guide
Thermal Considerations in Rack Mounting
Installing in a Rack
2Connections
Unpacking and Inspection
AC Power Hookup
2 Connections
To use the DEQ230 in another country
Connecting Inputs and Outputs
Connections
Unbalanced I/O
Operating Levels
Stereo connections
2 Connections
Balanced I/O
Connecting to the inserts on an instrument amplifier
Connections
2 Connections
Analog Signal In, Digital Signal Out
Digital Signal In, Analog Signal Out
Digital Signal In, Digital Signal Out
Connections
About Audio Cables
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2 Connections
3Basics of Equalization
What is equalization?
STORE
3 Basics of Equalization
Description of the Controls
BYPASS
Edit mode
Basics of Equalization
Description of the Basic Modes
Program mode
Channel Level mode
3 Basics of Equalization
Bypass mode
Audition mode
Basics of Equalization
Basic operation Program mode
Band Solo
Basic operation Edit mode
3 Basics of Equalization
Single Band Edit
Band Gain Cut/Boost Ranges
Basics of Equalization
The Relative Gain Display
3 Basics of Equalization
Multiple Band Edit
Selecting an Edit Group
upward until it reaches 24. This is because thats 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
3 Basics of Equalization
Basic operation Store mode
Channel Copy
Basics of Equalization
3 Basics of Equalization
Basic operation Audition mode
Audition Automation override
Basics of Equalization
Audition Automation
Manual Audition
3 Basics of Equalization
Basic operation Channel Level mode
Real-timeAnalysis mode DEQ230D only
The Hidden Modes
Basics of Equalization
Demonstration mode
Item button
Setup mode
Default
3 Basics of Equalization
Basics of Equalization
Button 1 Master Level +/- 6 dB
Button 2 Release Edit Group On/Off
Button 5 Lock On/Off
3 Basics of Equalization
Button 3 Audition Automation On/Off
Button 4 Edit Time Out On/Off
Button 7 MIDI Program Change On/Off
Basics of Equalization
Buttons 6-12DEQ230D only
Button 6 MIDI Channel ALL
Button 11 Sample Rate Select 44.1/48
3 Basics of Equalization
Button 9 System Exclusive Receive Waiting
Button 10 MIDI Out/Thru Select Out/Thru
Result
Basics of Equalization
Hold
Press
Noise
Equalization Artifacts
3 Basics of Equalization
Distortion
Constant Q vs. Variable Q
Basics of Equalization
What makes the DEQ230 unique?
3 Basics of Equalization
Variable Q
Constant Q
Multi-bandapplication and results
Basics of Equalization
3 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
Tape Hiss Removal
4Applications
Rock Kick Drum
Vocal Air
The answering machine
4 Applications
Filtering effects
Eliminating Feedback
Comb filtering
Applications
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4 Applications
Note for all program charts
5Program Charts
Program Charts
Note for programs 16-20and
Program Charts
Narrow Boost 3 800Hz
Program Charts
Note for programs
Program Charts
from magnetic media
Program Charts
and hot treble, send it through this curve
Program Charts
Program Charts
Note for programs
artifacts of the sampling process
more the bass is emphasized
Program Charts
5 Program Charts
Program Charts
DEQ230 Settings Chart
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5 Program Charts
Cleaning
6Troubleshooting
Care and Maintenance
Line Conditioners and Protectors
Cause
6 Troubleshooting
Troubleshooting Index
Solution Test with a known good input
Customers in the USA and Canada
Troubleshooting
Obtaining Repair Service
Refer All Servicing to Alesis
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6 Troubleshooting
DEQ230
Specifications
Analog I/O switchable
DEQ230D
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Alesis Limited Warranty
Warranty / Contact
Alesis Contact Information