Alesis manual DEQ830 Key Features

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DEQ830 Key Features

1.Offers the best of digital technology and analog-style control: a graphic display with instant editing of any band or combination of bands, plus the ability to store programs

2.100 user-definable programs, each of which holds 8 channels of EQ settings

3.100 user-definable curves, each of which holds 30 bands of EQ settings

4.48 KHz sampling rate, 24-bit A/D/A, 28-bit internal processing

5.Eight channels of equalization, independent or linkable

6.30 EQ bands per channel, spanning 25 Hz-20 KHz in 1/3- octave increments

7.+/- 12 dB boost/cut with center detente

8.Constant Q technology for finer control of audio

9.LOCK function for “set and forget” situations, which prevents accidental reprogramming

10.Retrieve Curve mode for auditioning and selecting stored EQ curves

11.Individual Channel Level adjustment per program

12.Master Level adjustment

13.[LINK] button for quick creation of matched EQ curves

14.Ability to bypass any or all channels using [BYPASS] and [BYPASS ALL] buttons

15.Configurable editing modes to suit the way you work

16.Ability to copy settings from one channel to another

17.Easy-to-read 7-segment Numerical LED Display

18.More than 350 Band Gain LEDs, making it easy to read EQ curves from a distance

19.Signal Level, Clip and Bypass LEDs for each channel

20.Balanced input/output (TRS)

21.Compact 1-space rackmount profile

22.Real-time Analyzer (RTA) mode for visual feedback of incoming and outgoing audio signals, with selectable metering modes

23.ADAT Optical input/output, auto-sensing of incoming digital audio

24.Clock selectable between 44.1k and 48k sampling rates

25.MIDI in/out for program changes and sys-ex storage

26.+4 dBu/-10 dBV operating level switch on rear panel

For full operating specifications, see page 65.

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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