Krell Industries Enhance Your Audio Setup with Optional Connections for the Krell Master Reference Subwoofer
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SECTION SIX

Optional Connections

This section describes three optional connections for the Master Reference Subwoofer. Krell Link connections (9) allow you to synchronize subwoofer operation with other Krell components that have Krell Link in and out connectors. The RS-232 port (13) allows you to connect the subwoofer to a computer-based control system. The 12 VDC (12 V trigger) input and output (10) allow you to integrate the subwoofer into a system with other components that use a 12 Volt trigger.

Krell Link

Krell Link in/out connectors on the back panel allow you to integrate the Master Reference Subwoofer into systems that include multiple preamplifiers, amplifiers and associated components, to synchronize their operation with a remote control. When the Krell Link in/out connectors are used, the remote capabilities of linked components are controlled from one component, called the control component. The linked components respond to stand-by and operational commands from the control component via MIDI cables.

Notes

The Master Reference Subwoofer cannot be used as the control component.

The Master Reference Subwoofer remote control takes priority over Krell Link commands. The CAST features of the Master Reference Subwoofer cannot be switched via Krell Link.

Krell Link uses standard five-pin MIDI communication cables, sometimes called MIDI Plus cables. These MIDI cables can be purchased from your authorized distributor or dealer, or from an audio supply store.

Connecting Components Through Krell Link

Use one or more five-pin MIDI cables (sometimes called MIDI Plus cables) to create an active Krell Link with Master Reference Subwoofers.

1.Turn all components off. This ensures components are synchronized when the MIDI cables are connected.

2.Select the control component. It must be in plain view for proper remote control operation.

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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 Overview Section ONE About Krell, pagesSection Five Operation, pages 42 List of Illustrations Page Letter from Dan D’Agostino About Krell Krell LegacyPage Revolutionary Krell Cast Technology Traditional Audio System and Voltage Signal TransmissionNew Approach Current Audio Signal Transmission Basics of CastBest 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 Cast and Krell Current ModeKrell Core Technologies Totally Balanced Operation Section ONE About Krell Totally Balanced Operation Inputs and Outputs ConfigurationsDefinition of Terms Operation TechnologyPage To Unpack the Master Reference Subwoofer Unpacking and PlacementUnpacking To Remove the Subwoofer from the Packing Crate Master Reference Subwoofer Placement Options Placement AC Power GuidelinesFeatures Front Panel DescriptionStand-by LED Power ButtonPower LED Front Panel DisplayPower Master Reference Subwoofer Back Panel Remote Connections PowerBack Panel Description Inputs Outputs Operation Keys Remote Control Description Battery Installation and RemovalRemote Control Functions Operation KeysFilter Selection Keys Menu KeysLevel Adjust Keys Filter Parameter KeysConnections and Configurations OverviewCast and Balanced Connections Connections and ConfigurationsStep I. Choose the Connections Default Menu Functions Switching Between Cast and Balanced InputsFactory Defaults To Connect the SubwooferPage To Activate Cast Inputs When to Use LFE Only Option Choosing Stereo, LFE, or Stereo/LFESelect the Low-pass Filter Step III. Configure the Programmable Electronic CrossoverAdjust the Low-pass Filter Parameters Select the Low-pass Filter ProfileSelect the High-pass Filter Profile Adjust the High-pass Filter ParametersSelect the High-pass Filter Adjust the High-pass Filter Step IV. Match the High-pass and Low-pass Filter LevelsAdjust the Low-pass Filter To End Noise Generation Step V. Select the PhaseStep VI. Saving Your Settings to Presets Recalling Presets Operation Steps for Subwoofer Operation followIf You Wish to Turn Your System Off System ProtectionSubwoofer Care Krell Link Connecting Components Through Krell LinkOptional Connections Krell Link Operation RS-232 VDC 12 V TriggerLED Menu Optional ConfigurationsAC Mains Menu Mute Menu Unit ID MenuExit Menu Warranty Page Return Authorization Procedure To contact the Krell Service Department

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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