dbx Pro 4820, 4800 manual Notch Filter Insert, Notch On/Off switch

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DriveRack®

Detailed Parameters

Section 6

6.18 - Notch Filter Insert

The 4800 and 4820 units offer 6-Band Notch Filter that can be inserted in the Input section. The Notch filter is designed to provide a significant amount of cut in very narrow frequency bandwidths to remove room resonances and other unwanted artifacts.

Notch On/Off switch

This turns the Notch filter on and off.

Flat/Restore switch

These buttons either flatten all bands (Flat) or restore (Restore) all bands to their previous settings.

Filter Select switch

This selects the Parametric EQ filter to be adjusted.

Filter On/Off switch

This turns the Selected (1-9) parametric EQ on and off.

Frequency (Fc) fader

This sets the frequency of the selected Notch Filter, and is adjustable between 20Hz to 20kHz.

Gain fader

This sets the amount of boost or cut of the selected Notch Filter, and is adjustable between +6 and -36 dB.

Q fader

This sets the Q (or bandwidth) of the selected Notch Filter and is adjustable between 16 to 128.

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DriveRack® 4800/4820 User Manual	61

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Contents 4800/4820 Important Safety Instructions Electromagnetic Compatibility DriveRack Table of ContentsDriveRack DriveRack DriveRackIntroduction IntroductionDriveRack DriveRack 4800/4820 FeaturesWarranty DriveRackIntroduction Service Contact InfoIntroductionDriveRack Section Getting Started Front Panel RTA Input Jack Input Channel Select A-DOuput Channel Select Threshold MetersSerial PC Connection DB-9 Output Adjustment/Mute KnobsStatus LEDs Output MetersMute Buttons System Architect FeaturesSystem Architect Control Software Recommended System Requirements InstallationMinimum System Requirements for System Architect are DriveRack Attributes DriveRack 4800/4820 Philosophy DriveRack PhilosophyNavigation Navigation Front Panel OperationModes of Operation DriveRack DriveRack DriveRack DriveRack DriveRack Module View Module View Software OperationSystem Architect DriveRack 4800/4820 File Storage System Architect DriveRack 4800/4820 PhilosophyDevice Window Module View FeaturesDevice Tools Menu Device View FeaturesDevice File Menu Device Edit MenuDevice Help Menu Preset ToolMutes and Solos MetersVenue File Menu Venue ViewVenue View Menu Venue Edit MenuVenue Insert Menu Venue Tools Menu Venue Panel MenuVenue Help Menu Venue Window MenuDriveRack Front Panel Use DriveRack DriveRack DriveRack GUI Operation DriveRack DriveRack Detailed Input Mixer Detailed ParametersInput Router Selected Source SwitchInput Graphic EQ EQ On/Off switchFlat/Restore switch Frequency switchInput 9-Band Parametric EQ Units switch Input DelayDelay On/Off switch Delay faderChannels A-D Master Mute switchOutput Mixer Output Router Output Bandpass Filter/Crossover Output 6-Band Parametric EQ Output Delay Clear Live and Clear All buttons AFS On/Off switchMode switch Advanced Feedback Suppression AFS InsertSensitivity fader Type switchLive Filter Lift switch Detector Highpass faderTarget fader AGC On/Off switchAutomatic Gain Control AGC Insert Threshold faderRelease fader Limiter Auto On/Off switchWindow fader Attack faderAmount fader AutoWarmth On/Off switchAutoWarmth Insert Ratio fader Compressor On/Off switchCompressor Insert OverEasy faderHold fader Auto On/Off switchWidth fader De-Esser On/Off switchDe-Esser Insert Frequency faderMax Attenuation fader Gate On/Off switchNoise Gate PeakStopPlus Overshoot fader Limiter On/Off switchPeakStopPlus On/Off switch Limiter InsertDriveRack Notch Filter Insert Notch On/Off switch24-36Hz Level fader SubHarmonic Synth On/Off switchSubHarmonic Synthesizer Insert SubHarmonic Level faderUtilities Sample Rate UtilitiesMiscellaneous Gains & TrimsUsers Access RightsPreset Range Real Time ClockDriveRack DriveRackAppendix AppendixDriveRack SpecificationsDriveRackAppendix Block Diagram Crossover Table Preset TableDigital I/O and Clocking Word Clock Termination Zone Controller Installation Zone Controller Wiring and InstallationZone Controller Wiring AppendixDriveRack GND ZC-4 Wiring Diagram Hard Factory Reset Factory ResetFactory Reset Information Power-Up Button FunctionsSubnet Ethernet NetworkingOverview of TCP/IP Basics IP addressAssumptions Connecting the Computer Directly to the DriveRackDhcp Dynamic Host Configuration Protocol Proxy Setup of a Simple Isolated Ethernet Network Using DhcpNetwork Considerations and Limitations Virtual Private Networks VPNEthernet Link Network TroubleshootingSoftware Firewall Copyrights AppendixDriveRack DriveRackAppendix Harman International Company