Krell Industries Evolution One specs

Separate Power Supplies Are Quiet and Powerful

Housed in a separate chassis, the power supply makes use of extensive electri- cal and magnetic shielding to keep radiated interference out of critical amplifier circuits. Internal high current line conditioning circuitry filters RF noise on the AC mains, as well as compensating for asymmetric power waveforms and DC on the mains. A dedicated 165 VA toroidal transformer with six independent secondary windings powers the amplifier’s low level stages, gain stages, and control circuitry. Power for the high current regulators and amplifier output stages comes from two massive 2500 VA toroidal transformers. These in turn drive eight 35-amp bridge rectifiers and 120,000 microfarads of filter capacitance. High relia- bility connectors with 56 machined, gold plated, 20-amp contacts transmit these tremendous power reserves to the regulators.

Advanced Microprocessor Control Monitors

Critical Operational Parameters

If the DC level at the amplifier inputs exceeds a safe level, the microprocessor control automatically switches in DC blocking capacitors to prevent damage to the input stages or the loudspeakers. The microprocessor control measures the load impedance in real time to optimize the performance of the amplifier and power supply or, in the case of a short circuit, to shut the amplifier off. It monitors the regulator output voltages, the symmetry between the two halves of the bal- anced output stages, and it monitors the operating temperatures of the three main heat sinks. If any of the heat sinks become too hot, the microprocessor control adjusts the operating parameters of the amplifier and power supply to help the circuitry run cooler. If the temperature of any of the heat sinks becomes unsafe, the microprocessor control shuts the amplifier off until it cools down.

In the event of a major protection fault the microprocessor flashes a diagnostic code on the power/stand-by LED (4). The RMS output voltage and current sig- nals used by the microprocessor are also used by the power meter (6) (7), on the amplifier front panel, to display accurate power measurements. For more infor- mation on diagnostic codes, see Amplifier Troubleshooting, on page 26.

continued

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.