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Krell Industries MASTER REFERENCE SUBWOOFER Filter Parameter Keys, Level Adjust Keys, Type Key

Models: MASTER REFERENCE SUBWOOFER

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Filter Parameter Keys

Filter Parameter Keys

39 Type Key

Use this key to select the filter profile desired. The front panel display (4) shows the current selection. See Step III. Configure the Programmable Electronic Crossover, on page 36, for filter options and instructions.

40 Slope Key

Use this key to adjust the slope of the high-pass or low-pass filter. The front panel display (4) shows the selected setting. See Step III. Configure the Programmable Electronic Crossover, on page 36, for slope adjustment instructions.

41 Freq(uency) Key

Use this key to select the cutoff frequency for the high-pass or low-pass filter. The front panel display (4) shows the selected setting. See Step III. Configure the Programmable Electronic Crossover, on page 36, to select the desired fre-

quency setting.

42 Level Key

Use this key to adjust the level of the high-pass or low-pass filter. The front panel display (4) shows the selected setting. See Step IV. Match the High-pass and Low-pass Filter Levels, on page 38, for more information.

Level Adjust Keys

43 Adjust Up and Down Keys

Use these keys to adjust volume levels and to scroll through filter and menu selec- tions.

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Krell Industries MASTER REFERENCE SUBWOOFER Filter Parameter Keys, Level Adjust Keys, Type Key, Slope Key, Frequency Key

Contents

O W N E R ’ S R E F E R E N C E M R SM A S T E R R E F E R E N C E S U B W O O F E R WARNINGS Master Reference Subwoofer Owner’s ReferenceSECTION ONE About Krell, pages SECTION TWO Unpacking and Placement, pagesSECTION THREE Features, pages OverviewSECTION FIVE Operation, pages SECTION SEVEN Optional Configurations, pagesWARRANTY, pages RETURN AUTHORIZATION PROCEDURE, pageFigure 3, page List of IllustrationsFigure 1, page Figure 2, pagePage Chief Executive Officer A Letter from Dan D’AgostinoDear Audio Enthusiast Sincerely Daniel D’Agostinofor workmanship, style, and performance.” About KrellThe Krell Legacy SECTION ONEFrom the first Krell product - the KSA-100- to the present, Dan D’Agostino has continually “pushed the envelope” of performance in his search for greater amplifier power and now, subwoofer power. His exploration of technologies, driven by his never-endingquest to elevate the standard of excellence, has resulted in break- through audio designs. Over the years, the Krell line of power amplifiers, including benchmark products such as the KRS -100,KRS -200,and the Audio Standard models, has established a legacy of unparalleled sonic performance. The Master Reference Subwoofer brings that level of performance to the low frequency range The Basics of CAST A New Approach Current Audio Signal TransmissionRevolutionary Krell CAST Technology The Best Musical Performance CAST and Krell Current Mode CombinedCAST Cables Krell Active Motion Control Ensuring Maximum PerformanceInnovative Subwoofer Technology and Design Programmable Electronic CrossoverDrivers EnclosureKrell Proprietary Output Devices Krell Core TechnologiesKrell CAST and Krell Current Mode Totally Balanced Operation Totally Balanced Operation continued SECTION ONE About Krell continuedInputs and Outputs ConfigurationsDefinition of Terms Krell Active Motion Control OperationTechnology Krell Current Mode A proprietary Krell circuit topology in which the audio gain stages operate in the current domain. Krell Current Mode provides speed and bandwidth performance that is not possible with less sophisticated voltage designs SECTION TWO Unpacking and PlacementUnpacking To Unpack the Master Reference Subwoofer1 person needed To Remove the Subwoofer from the Packing Crate4 people needed Scenario 3 Home Theater, Front Projection 3Master Reference SubwooferScenario 1 Stereo Scenario 2 Home Theater, Rear ProjectionAC Power Guidelines PlacementSee Figure FeaturesFront Panel Description SECTION THREE4 Front Panel Display 1 Power Button2 Power LED 3 Stand-byLEDOutputs PowerBack Panel Remote Connections InputsMaster Reference Subwoofer 8 IEC Power Connector Power6 Power Switch 7 AC Input Specification14 Left and Right CAST Inputs Inputs12 RC-5In 13 RS-23221 Left and Right Balanced High-passOutputs Outputs19 LFE Single-endedInput 20 Left and Right CAST High-passOutputsFilter Selection Keys PowerLevel Adjust Keys Operation KeysBattery Installation and Removal Remote Control Description29 Preset Keys Remote Control Functions26 Power Key 28 Phase Key33 All Key Filter Selection KeysMenu Keys 32 Unit KeysFilter Parameter Keys Level Adjust Keysquency setting 43 Adjust Up and Down KeysOverview Connections and ConfigurationsStep V. Select the Phase Step VI. Saving Your Settings to PresetsCAST and Balanced Connections Connections and ConfigurationsStep I. Choose the Connections A. To Connect the Subwoofer Switching Between CAST and Balanced InputsFactory Defaults Default Menu Functions18or the single-endedLFE input 19 on the subwoofer back panel to the subwoofer output of your processor B. To Activate CAST Inputs C. Choosing Stereo, LFE, or Stereo/LFE D. When to Use LFE Only Option1.Low-passFilter Slope C. Adjust the Low-passFilter ParametersA. Select the Low-passFilter B. Select the Low-passFilter Profile3.Low-passFilter Level F. Adjust the High-passFilter ParametersD. Select the High-passFilter E. Select the High-passFilter ProfileA. Adjust the High-passFilter B. Adjust the Low-passFilter C. To End Noise Generation Step V. Select the PhaseStep VI. Saving Your Settings to Presets 1.Press the save key Recalling PresetsTo save a setting configuration to a preset 1.Press the preset keySECTION FIVE OperationThe Steps for Subwoofer Operation follow If You Wish to Turn Your System Off System ProtectionSubwoofer Care SECTION SIX Connecting Components Through Krell LinkOptional Connections Krell LinkKrell Link Operation SECTION SIX Optional Connections continued RS-23212 VDC 12 V Trigger SECTION SEVEN Optional ConfigurationsAC Mains Menu LED MenuUnit ID Menu Mute Menu2.Press the enter key 38. You exit the menu mode Exit MenuThis option allows you to exit the menu mode Warranty Page serve you better Return Authorization ProcedureTo contact the Krell Service Department