Krell Industries MASTER REFERENCE SUBWOOFER manual Filter Parameter Keys, Level Adjust Keys

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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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Contents 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 Section ONE About Krell, pages OverviewSection Five Operation, pages 42 List of Illustrations Page Letter from Dan D’Agostino Krell Legacy About KrellPage Basics of Cast Traditional Audio System and Voltage Signal TransmissionNew Approach Current Audio Signal Transmission Revolutionary Krell Cast TechnologyBest 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 Cast and Krell Current ModeKrell Core Technologies Totally Balanced Operation Section ONE About Krell Totally Balanced Operation Inputs and Outputs ConfigurationsDefinition of Terms Technology OperationPage To Unpack the Master Reference Subwoofer Unpacking and PlacementUnpacking To Remove the Subwoofer from the Packing Crate Master Reference Subwoofer Placement Options AC Power Guidelines PlacementFront Panel Description FeaturesFront Panel Display Power ButtonPower LED Stand-by LEDPower Master Reference Subwoofer Back Panel Remote Connections PowerBack Panel Description Inputs Outputs Operation Keys Battery Installation and Removal Remote Control DescriptionOperation Keys Remote Control FunctionsMenu Keys Filter Selection KeysFilter Parameter Keys Level Adjust KeysOverview Connections and ConfigurationsCast and Balanced Connections Connections and ConfigurationsStep I. Choose the Connections To Connect the Subwoofer Switching Between Cast and Balanced InputsFactory Defaults Default Menu FunctionsPage To Activate Cast Inputs Choosing Stereo, LFE, or Stereo/LFE When to Use LFE Only OptionSelect the Low-pass Filter Profile Step III. Configure the Programmable Electronic CrossoverAdjust the Low-pass Filter Parameters Select the Low-pass FilterSelect the High-pass Filter Profile Adjust the High-pass Filter ParametersSelect the High-pass Filter Step IV. Match the High-pass and Low-pass Filter Levels Adjust the High-pass FilterAdjust the Low-pass Filter To End Noise Generation Step V. Select the PhaseStep VI. Saving Your Settings to Presets Recalling Presets Steps for Subwoofer Operation follow OperationIf You Wish to Turn Your System Off System ProtectionSubwoofer Care Krell Link Connecting Components Through Krell LinkOptional Connections Krell Link Operation VDC 12 V Trigger RS-232LED Menu Optional ConfigurationsAC Mains Menu Unit ID Menu Mute MenuExit Menu Warranty Page To contact the Krell Service Department Return Authorization Procedure

MASTER REFERENCE SUBWOOFER specifications

Krell Industries has long been synonymous with high-end audio equipment, and their Master Reference Subwoofer is a testament to this legacy of excellence. Designed to deliver an unparalleled listening experience, the Master Reference Subwoofer is engineered to provide deep, powerful bass without compromising clarity or detail.

One of the standout features of the Master Reference Subwoofer is its robust construction. The cabinet is made from high-density materials that minimize resonances and vibrations, ensuring that the purity of the audio signal is maintained. This attention to detail is crucial, as unwanted vibrations can color the sound and detract from the listening experience. The design also includes internal bracing that further enhances stiffness, resulting in a more controlled bass response.

At the heart of the Master Reference Subwoofer is a custom-engineered driver, designed to handle the demands of high-powered audio. With a large diaphragm and a powerful motor system, this driver can reproduce lower frequencies with remarkable accuracy. The subwoofer utilizes a sophisticated suspension system that allows for greater travel while maintaining linearity, resulting in an impressive dynamic range. This means that whether you're listening to the subtle nuances of a classical piece or the thunderous explosions of an action movie, the Master Reference Subwoofer can handle it all with finesse.

Krell's proprietary technologies further enhance the performance of the Master Reference Subwoofer. The subwoofer features advanced digital signal processing (DSP) that allows for precise tuning and customization of the audio output. This ensures that the subwoofer can adapt to different room acoustics and individual preferences, resulting in optimal sound quality in any environment. Moreover, the Room EQ feature automatically analyzes the listening space and adjusts the output accordingly, providing an incredible level of personalization.

Connectivity options on the Master Reference Subwoofer are diverse and versatile, including XLR and RCA inputs, making it compatible with a wide range of audio systems. The intuitive interface allows users to easily navigate through various settings, making setup and adjustment a breeze.

In summary, the Krell Industries Master Reference Subwoofer showcases the company's commitment to audio excellence through its unmatched construction, innovative driver technology, and advanced digital processing capabilities. For audiophiles seeking a subwoofer that delivers not just deep bass, but also accuracy and control, the Master Reference Subwoofer stands out as a premier choice, elevating any listening experience to new heights.
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