Krell Industries Evolution One manual Revolutionary Krell Cast Technology, Cast Basics

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Revolutionary Krell CAST Technology

Current Audio Signal Transmission, termed CAST, is a revolutionary method of con- necting analog audio components for unparalleled sonic performance. Innovative engineering combines the new Krell CAST circuitry with existing Krell Current Mode technology to create entire CAST systems that reproduce music with incredible range, tonality, and precision.

The Voltage Signal Transmission

and the Traditional Audio System

Traditionally, signal is transmitted in the voltage domain between two components. In an audio system, each component is a discrete entity with unique characteristics that act upon the musical signal independently. Each component is unaware of the other components in the system. The cables that connect the components also have their own electrical characteristics, which affect the sonic presentation of the entire system. CAST transmission unifies individual components and interconnects into an electrically linked whole. The original signal remains unaltered from source to speaker.

CAST Basics

Here’s how a CAST audio system works. Internally, each CAST source transfers, or amplifies, current using Krell Current Mode circuitry. This current signal is then output using CAST circuitry. When the signal is received by a CAST input, Krell Current Mode circuitry again takes over until the signal reaches the loud- speaker. By maintaining the musical signal in the current domain from beginning to end, an entire CAST system behaves as if it is one component. With CAST, circuit board properties and signal transmission aberrations between compo- nents are eliminated. Cable impedances and their effects on the transmitted sig- nal are non-existent.

How CAST and Krell Current Mode Interact

While CAST is a new method of transferring the musical signal between compo- nents, its origin stems from Krell Current Mode, the technology developed to transfer the musical signal within a component. CAST combined with Krell Current Mode takes circuitry signal transmission to the next evolutionary level. In essence, Krell Current Mode maintains the integrity of the signal within the component and

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Contents Evolution Evolution One Monaural Power Amplifier Owner’s Reference Contents List of Illustrations Letter from Dan D’Agostino Letter from Dan D’Agostino Krell Legacy About KrellSection ONE About Krell How Cast and Krell Current Mode Interact Voltage Signal Transmission Traditional Audio SystemRevolutionary Krell Cast Technology Cast BasicsCast Cable Construction Evolution CastBest Musical Performance Core Technologies Ensuring Maximum PerformanceEvolution Bias Control Systems Impedance AdvantageSeparate Power Supplies Are Quiet and Powerful Definition of Terms Inputs and OutputsOperation Technology Operational ModeUnpacking and Placement Opening the Amplifier Shipping CartonTo Remove the Chassis from the Shipping Carton People needed AC Power Guidelines PlacementAnatomy of an Amplifier This section describes Evolution One features and benefitsEvolution One Amplifier and Power Supply Chassis Back Panels Evolution One Amplifier Chassis Top Evolution One Power Supply Chassis Top Cast Connections Connecting the Evolution One to Your SystemBalanced Connections Cable Connection StepsTurn to Amplifier Operation, on DC Protection Circuitry / Using a Tube PreamplifierRemote Control Options RC-5 Remote ControlVolt Trigger Amplifier Operation Powering On, Powering Down, and Powering OffSwitching Between Cast and Balanced Inputs Adjusting Power Meter Modes Power Meter Range and Power Meter Wand ActionTurning Off the Lights on the Amplifier Channel Front Panel Amplifier Care System Protection Amplifier TroubleshootingDiagnostic Codes Possible Condition Course of Action Warranty Page To contact the Krell Service Department Return Authorization ProcedureSpecifications

Evolution One specifications

Krell Industries is synonymous with high-fidelity audio and innovative engineering, showcasing their prowess in speaker design with the Evolution One. This speaker embodies the cutting-edge technology and striking aesthetics that Krell is recognized for in the audiophile community.

The Evolution One features a unique dual-woofer configuration, delivering powerful bass response without distortion. Each woofer is meticulously crafted from advanced composite materials, ensuring that the sound remains accurate and dynamic, even at high volumes. This design aligns perfectly with Krell's dedication to reproducing music with the utmost authenticity.

At the heart of the Evolution One is Krell's proprietary CAST (Current Mode Amplification) technology. This innovation sets Krell apart from competitors by allowing the signal to flow through a path that maintains the purity of the audio signal. By operating in current mode rather than voltage mode, CAST drastically reduces the impact of circuit interference that often plagues traditional audio systems. The result is a level of transparency and low distortion that appeals to even the most discerning audiophiles.

The speaker also incorporates advanced crossover technology, which seamlessly integrates the woofers and tweeter. Krell employs a fourth-order Linkwitz-Riley crossover to ensure that the different drivers work in perfect harmony. This feature aids in achieving a balanced and cohesive soundstage, enhancing the listening experience across various musical genres.

Visually, the Evolution One is a statement piece. Its sleek, modern design is complemented by a high-gloss finish, ensuring it not only sounds exceptional but also serves as an elegant addition to any audio setup. The robust cabinet construction eliminates unwanted vibrations, further enhancing sound clarity.

Moreover, the Evolution One is equipped with advanced bi-wiring and bi-amping options, allowing audiophiles to optimize their setups based on personal preferences and system requirements. This flexibility makes the Evolution One an adaptable choice for those looking to refine their audio systems further.

In summary, the Krell Industries Evolution One is a culmination of innovative technology, premium materials, and exquisite design. With features such as dual-woofer configurations, CAST technology, and advanced crossover design, it stands as a testament to Krell's commitment to delivering high-fidelity audio experiences that resonate with both casual listeners and dedicated audiophiles alike.