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Krell Industries MASTER REFERENCE SUBWOOFER Power, Back Panel Remote Connections, Inputs, Outputs

Models: MASTER REFERENCE SUBWOOFER

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(SECTION THREE: Features continued)

Figure 3 Master Reference Subwoofer Back Panel (Power)

7 6

Figure 3

Power

6 Power Switch

7AC Input Specification

8 IEC Power Connector

Figure 4

Back Panel Remote Connections

9Krell Link In and Out

10 12 VDC In and Out

11 12 VDC LFE In

12 RC-5 In

13 RS-232

Inputs

14Left and Right CAST Inputs

15Left and Right Balanced Inputs

16Left and Right Single-ended Inputs

17LFE CAST Input

18LFE Balanced Input

19LFE Single-ended Input

Outputs

20Left and Right CAST High-pass Outputs

21Left and Right Balanced High-pass Outputs

22Left and Right Single-ended High-pass Outputs

23Left and Right CAST By-pass Outputs

24Left and Right Balanced By-pass Outputs

25Left and Right Single-ended By-pass Outputs

50/60 Hz

KRELL INDUSTRIES, INC. 45 CONNAIR ROAD ORANGE, CT 06477-3650

USA

MADE IN USA

8

20

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Krell Industries MASTER REFERENCE SUBWOOFER manual Power, Back Panel Remote Connections, Inputs, Outputs

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 Master Reference Subwoofer Owner’s Reference WARNINGSOverview SECTION TWO Unpacking and Placement, pagesSECTION THREE Features, pages SECTION ONE About Krell, pagesRETURN AUTHORIZATION PROCEDURE, page SECTION SEVEN Optional Configurations, pagesWARRANTY, pages SECTION FIVE Operation, pagesFigure 2, page List of IllustrationsFigure 1, page Figure 3, pagePage Sincerely Daniel D’Agostino A Letter from Dan D’AgostinoDear Audio Enthusiast Chief Executive OfficerSECTION ONE About KrellThe Krell Legacy for workmanship, style, and performance.”From 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 Programmable Electronic Crossover Ensuring Maximum PerformanceInnovative Subwoofer Technology and Design Krell Active Motion ControlEnclosure DriversKrell Proprietary Output Devices Krell Core TechnologiesKrell CAST and Krell Current Mode Totally Balanced Operation SECTION ONE About Krell continued Totally Balanced Operation 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 To Unpack the Master Reference Subwoofer Unpacking and PlacementUnpacking SECTION TWO1 person needed To Remove the Subwoofer from the Packing Crate4 people needed Scenario 2 Home Theater, Rear Projection 3Master Reference SubwooferScenario 1 Stereo Scenario 3 Home Theater, Front ProjectionPlacement AC Power GuidelinesSECTION THREE FeaturesFront Panel Description See Figure3 Stand-byLED 1 Power Button2 Power LED 4 Front Panel DisplayInputs PowerBack Panel Remote Connections OutputsMaster Reference Subwoofer 7 AC Input Specification Power6 Power Switch 8 IEC Power Connector13 RS-232 Inputs12 RC-5In 14 Left and Right CAST Inputs20 Left and Right CAST High-passOutputs Outputs19 LFE Single-endedInput 21 Left and Right Balanced High-passOutputsOperation Keys PowerLevel Adjust Keys Filter Selection KeysRemote Control Description Battery Installation and Removal28 Phase Key Remote Control Functions26 Power Key 29 Preset Keys32 Unit Keys Filter Selection KeysMenu Keys 33 All Key43 Adjust Up and Down Keys Level Adjust Keysquency setting Filter Parameter KeysStep VI. Saving Your Settings to Presets Connections and ConfigurationsStep V. Select the Phase OverviewCAST and Balanced Connections Connections and ConfigurationsStep I. Choose the Connections Default Menu Functions Switching Between CAST and Balanced InputsFactory Defaults A. To Connect the Subwoofer18or the single-endedLFE input 19 on the subwoofer back panel to the subwoofer output of your processor B. To Activate CAST Inputs D. When to Use LFE Only Option C. Choosing Stereo, LFE, or Stereo/LFEB. Select the Low-passFilter Profile C. Adjust the Low-passFilter ParametersA. Select the Low-passFilter 1.Low-passFilter SlopeE. Select the High-passFilter Profile F. Adjust the High-passFilter ParametersD. Select the High-passFilter 3.Low-passFilter LevelA. 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 preset key Recalling PresetsTo save a setting configuration to a preset 1.Press the save keySECTION FIVE OperationThe Steps for Subwoofer Operation follow If You Wish to Turn Your System Off System ProtectionSubwoofer Care Krell Link Connecting Components Through Krell LinkOptional Connections SECTION SIXKrell Link Operation SECTION SIX Optional Connections continued RS-23212 VDC 12 V Trigger LED Menu Optional ConfigurationsAC Mains Menu SECTION SEVENMute Menu Unit ID 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