Alesis DEQ830 manual Description of the Front Panel

Page 30

3 Basics of Equalization

Description of the Front Panel

This section will give you an overview of the front panel’s features. Not all features are labeled, so you may want to refer to the diagram of the DEQ830 on page 18 as you read this section.

Band Select

There are 31 buttons side-by-side on the left half of the DEQ830’s front panel. The first 30 are the [BAND SELECT] buttons. Above each of the [BAND SELECT] buttons is a number like “25” or “8k.” These stand for the audio frequencies, measured in Hertz (Hz), which are selected for editing by the [BAND SELECT] buttons below them. The 31st button is the [CHANNEL LEVEL] button, which is explained below.

Channel Level

The [CHANNEL LEVEL] button is used to set the level of the currently selected channel or Link Group. This setting is post-EQ and pre-Master Level.

For details on the relationship between Master Level and Channel Level, see page 32.

Real Time Analyzer (RTA)

This button will put the DEQ830 into Real Time Analyzer mode, in which the unit serves as a visual aid for analyzing the audio signal. In this mode, the Band Gain LEDs “dance to the music,” displaying the relative strengths of the various frequency ranges passing through the DEQ830. For more on this mode, see page 43.

Channel Select

To the right of the [POWER] button, you’ll see the [CHANNEL SELECT] buttons. These eight buttons are used for selecting a channel for which the EQ settings will be displayed on the 30 Band Gain LEDs. The [CHANNEL SELECT] buttons are also used for creating Link Groups.

Monitor Select (INPUT/OUTPUT)

This button, located immediately above the [BYPASS] and [ALL] buttons, toggles between INPUT and OUTPUT to determine whether the Channel Meters and RTA display the input or output levels. The green LEDs above this button indicate which monitoring method is currently selected.

Bypass

When you press this button, a red LED will light immediately above the currently selected channel, indicating that this channel is in Bypass mode. As long as this LED is lit, incoming audio will pass through this channel without being affected by its EQ settings. Also, if you’re on a linked channel when you press the [BYPASS] button, all of the linked channels will bypass at the same time. Bypass mode is useful for comparing the “equalized” signal with

28

Bypass mode “hides” the effect of the EQ and Channel Level controls on the audio. However, the Master Level function from Utility mode is unaffected by the [BYPASS] button. For more information about the relationship between Channel Level and Master Level, see page 32.

Image 30
Contents Reference Manual This page intentionally left blank Table Of Contents Chapter Four Applications Introduction WelcomeDEQ830 Key Features How to Use This Manual This page intentionally left blank Safety symbols used in this product Important Safety InstructionsImportant Safety Instructions English Please follow these precautions when using this productPage Symboles utilisés dans ce produit Instructions de Sécurité Importantes FrenchPage Sicherheit Symbole verwendet in diesem Produkt Lesen Sie bitte die folgende Sicherheitshinweise GermanPage CE Declaration of Conformity FCC Compliance StatementThis page intentionally left blank Quick Start Guide If you can’t wait to get started…Hook it up to a mixer Play some signal into the unit Try some equalizationStore the Program Save an EQ Curve DEQ830 Diagram Unpacking and Inspection Installing in a RackConnections Thermal Considerations in Rack MountingAC Power Hookup Using the DEQ830 in another countryConnecting Inputs and Outputs Unbalanced I/OMono connections Balanced I/OOperating Levels Stereo connectionsConnecting to the inserts on an instrument amplifier Connecting to equipment with XLR inputs and outputsAnalog Signal In, Digital Signal Out Digital Signal In, Analog Signal OutDigital Signal In, Digital Signal Out About Audio Cables This page intentionally left blank What is equalization? Basics of EqualizationDescription of the Front Panel Store Bypass All ALLLink Push to Link CompareProgram Value Encoder ValueNumerical LED Display Store mode Program modeEdit mode Save Curve modeRetrieve Curve mode Bypass modeChannel Level mode Link mode Utility modeReal Time Analyzer mode Basic operation Program mode Basic operation Edit modeSingle Band Edit Band Solo Band Gain Cut/Boost RangesLED Relative Gain display Multiple Band EditSelecting an Edit Group Proportional Gain MemoryBasics of Equalization Limits of Relative Gain Release Edit Group function Basic operation Store mode Basic operation Save Curve modeBasic operation Channel Level mode Basic operation Link modeCopying settings between channels Basic operation Real Time Analyzer mode Using the Value encoder in RTA modeSetting Metering modesBasic operation Utility mode Master Level +/- 6 dBRelease Edit Group On/Off Midi Program Change On/Off Edit Time Out On/OffMidi Channel ALL Midi Out/Thru Select Out/ThruForce Analog Input Auto/Analog Peak Mode 0, 1, 2, InfInternal Clock Sample Rate Select 44.1/48 Fast Program Select On/OffReceiving System Exclusive bulk dumps Demonstration mode Lock modeHidden Modes Noise Equalization ArtifactsDistortion PhasingConstant Q vs. Variable Q What makes the DEQ830 unique?Variable Q Constant QMulti-band application and results Basics of Equalization This page intentionally left blank Rock Kick Drum ApplicationsGeneral EQ tips Vocal AirFiltering effects Eliminating FeedbackAnswering machine Settings chart Comb filteringApplications Cleaning TroubleshootingCare and Maintenance Line Conditioners and ProtectorsTroubleshooting Troubleshooting IndexCustomers in the USA and Canada Obtaining Repair ServiceRefer All Servicing to Alesis Customers outside the USA and CanadaThis page intentionally left blank Specifications Audio PerformanceMechanical This page intentionally left blank Warranty / Contact Alesis Limited WarrantyAlesis Contact Information