Alesis DEQ830 manual About Audio Cables

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Connections 2

About Audio Cables

The connections between the DEQ830 and your studio are your music’s lifeline, so use only high quality cables. These should be low-capacitance shielded cables with a stranded (not solid) internal conductor and a low-resistance shield. Although quality cables cost more, they do make a difference.

Route cables to the DEQ830 correctly by observing the following precautions:

Do not bundle audio cables with AC power cords.

Avoid running audio cables near sources of electromagnetic interference such as transformers, monitors, computers, etc.

Do not place cables where they can be stepped on. Stepping on a cable may not cause immediate damage, but it can compress the insulation between the center conductor and shield, degrading the cable’s performance and reducing the cable’s reliability.

Avoid twisting the cable or having it make sharp, right angle turns.

Never unplug a cable by pulling on the wire itself. Always unplug by grasping the body of the plug firmly and pulling directly outward.

And most importantly, keep connectors clean. Every few months, unplug them and wipe off oxidation with a clean cloth soaked in alcohol or contact cleaner. Insert the plugs into the jacks a few times to clean the internal jack contacts.

Although Alesis does not endorse any specific product, chemicals such as Tweek (also known as Stabilant) and Cramolin, when applied to electrical connectors, are claimed to improve the electrical contact.

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Contents Reference Manual This page intentionally left blank Table Of Contents Chapter Four Applications Welcome IntroductionDEQ830 Key Features How to Use This Manual This page intentionally left blank Please follow these precautions when using this product Important Safety InstructionsImportant Safety Instructions English Safety symbols used in this productPage Instructions de Sécurité Importantes French Symboles utilisés dans ce produitPage Lesen Sie bitte die folgende Sicherheitshinweise German Sicherheit Symbole verwendet in diesem ProduktPage FCC Compliance Statement CE Declaration of ConformityThis 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 Thermal Considerations in Rack Mounting Installing in a RackConnections Unpacking and InspectionUsing the DEQ830 in another country AC Power HookupUnbalanced I/O Connecting Inputs and OutputsStereo connections Balanced I/OOperating Levels Mono connectionsConnecting to equipment with XLR inputs and outputs Connecting to the inserts on an instrument amplifierAnalog Signal In, Digital Signal Out Digital Signal In, Analog Signal OutDigital Signal In, Digital Signal Out About Audio Cables This page intentionally left blank Basics of Equalization What is equalization?Description of the Front Panel Compare Bypass All ALLLink Push to Link StoreProgram Value Encoder ValueNumerical LED Display Save Curve mode Program modeEdit mode Store 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 Gain Cut/Boost Ranges Band SoloLED Proportional Gain Memory Multiple Band EditSelecting an Edit Group Relative Gain displayBasics of Equalization Limits of Relative Gain Release Edit Group function Basic operation Save Curve mode Basic operation Store modeBasic operation Channel Level mode Basic operation Link modeCopying settings between channels Using the Value encoder in RTA mode Basic operation Real Time Analyzer modeMetering modes SettingMaster Level +/- 6 dB Basic operation Utility modeRelease Edit Group On/Off Midi Out/Thru Select Out/Thru Edit Time Out On/OffMidi Channel ALL Midi Program Change On/OffFast Program Select On/Off Peak Mode 0, 1, 2, InfInternal Clock Sample Rate Select 44.1/48 Force Analog Input Auto/AnalogReceiving System Exclusive bulk dumps Demonstration mode Lock modeHidden Modes Phasing Equalization ArtifactsDistortion NoiseWhat makes the DEQ830 unique? Constant Q vs. Variable QConstant Q Variable QMulti-band application and results Basics of Equalization This page intentionally left blank Vocal Air ApplicationsGeneral EQ tips Rock Kick DrumFiltering effects Eliminating FeedbackAnswering machine Comb filtering Settings chartApplications Line Conditioners and Protectors TroubleshootingCare and Maintenance CleaningTroubleshooting Index TroubleshootingCustomers outside the USA and Canada Obtaining Repair ServiceRefer All Servicing to Alesis Customers in the USA and CanadaThis page intentionally left blank Specifications Audio PerformanceMechanical This page intentionally left blank Alesis Limited Warranty Warranty / ContactAlesis Contact Information