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Krell Industries MASTER REFERENCE SUBWOOFER manual

Models: MASTER REFERENCE SUBWOOFER

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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.

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.

Programmable A proprietary full-function crossover designed for the Master Electronic Crossover Reference Subwoofer. The crossover is comprised of two

sections: the high-pass filter and the low-pass, or sub, filter. The user fine-tunes each section by selecting the filter type (profile), and adjusting the profile’s parameters including slope, frequency, and level, to enhance low frequency reproduction.

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Krell Industries MASTER REFERENCE SUBWOOFER manual

Contents

M A S T E R R E F E R E N C E S U B W O O F E R M R SO W N E R ’ S R E F E R E N C E 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 Revolutionary Krell CAST Technology A New Approach Current Audio Signal TransmissionThe Basics of CAST CAST Cables CAST and Krell Current Mode CombinedThe Best Musical Performance Krell Active Motion Control Ensuring Maximum PerformanceInnovative Subwoofer Technology and Design Programmable Electronic CrossoverDrivers EnclosureKrell CAST and Krell Current Mode Krell Core TechnologiesKrell Proprietary Output Devices Totally Balanced Operation Totally Balanced Operation continued SECTION ONE About Krell continuedDefinition of Terms ConfigurationsInputs and Outputs Technology OperationKrell Active Motion Control 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 Subwoofer4 people needed To Remove the Subwoofer from the Packing Crate1 person 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 PresetsStep I. Choose the Connections Connections and ConfigurationsCAST and Balanced 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 Step VI. Saving Your Settings to Presets Step V. Select the PhaseC. To End Noise Generation 1.Press the save key Recalling PresetsTo save a setting configuration to a preset 1.Press the preset keyThe Steps for Subwoofer Operation follow OperationSECTION FIVE Subwoofer Care System ProtectionIf You Wish to Turn Your System Off SECTION SIX Connecting Components Through Krell LinkOptional Connections Krell LinkKrell Link Operation 12 VDC 12 V Trigger RS-232SECTION SIX Optional Connections continued SECTION SEVEN Optional ConfigurationsAC Mains Menu LED MenuUnit ID Menu Mute MenuThis option allows you to exit the menu mode Exit Menu2.Press the enter key 38. You exit the menu mode Warranty Page To contact the Krell Service Department Return Authorization Procedureserve you better