Alesis DEQ830 manual Basics of Equalization

Page 57

Basics of Equalization 3

To further illustrate the differences, here is a pair of examples in which three adjacent bands have settings of + 3 dB, -3 dB, and + 3 dB, respectively:

Remember that at lower gain settings, there is an even wider Q for a given frequency band on a Variable Q equalizer. The center frequency band needs to be edited even more drastically in order for any noticeable reduction of frequencies in its range.

The corresponding illustration for the Constant Q equalizer speaks for itself:

We offer this information regarding the differences between Constant Q and Variable Q equalizers not as an attempt to persuade the world to reject Variable Q equalizers out of hand; in some applications either would do the job nicely. But when a greater degree of control over the program material is needed, a Constant Q equalizer like the DEQ830 offers a significant advantage.

55

Image 57
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 Important Safety Instructions English Important Safety InstructionsSafety symbols used in this product Please follow these precautions when using 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 Connections Installing in a RackUnpacking and Inspection Thermal Considerations in Rack MountingUsing the DEQ830 in another country AC Power HookupUnbalanced I/O Connecting Inputs and OutputsOperating Levels Balanced I/OMono connections Stereo 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 Link Push to Link Bypass All ALLStore CompareProgram Value Encoder ValueNumerical LED Display Edit mode Program modeStore 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 Gain Cut/Boost Ranges Band SoloLED Selecting an Edit Group Multiple Band EditRelative Gain display Proportional Gain MemoryBasics 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 Channel ALL Edit Time Out On/OffMidi Program Change On/Off Midi Out/Thru Select Out/ThruInternal Clock Sample Rate Select 44.1/48 Peak Mode 0, 1, 2, InfForce Analog Input Auto/Analog Fast Program Select On/OffReceiving System Exclusive bulk dumps Demonstration mode Lock modeHidden Modes Distortion Equalization ArtifactsNoise PhasingWhat makes the DEQ830 unique? Constant Q vs. Variable QConstant Q Variable QMulti-band application and results Basics of Equalization This page intentionally left blank General EQ tips ApplicationsRock Kick Drum Vocal AirFiltering effects Eliminating FeedbackAnswering machine Comb filtering Settings chartApplications Care and Maintenance TroubleshootingCleaning Line Conditioners and ProtectorsTroubleshooting Index TroubleshootingRefer All Servicing to Alesis Obtaining Repair ServiceCustomers in the USA and Canada Customers outside the USA and CanadaThis page intentionally left blank Specifications Audio PerformanceMechanical This page intentionally left blank Alesis Limited Warranty Warranty / ContactAlesis Contact Information