SECTION ONE

Evolution Amplifier Features and Technology

This section describes the innovative features and technology of the Evolution Series amplifiers, and defines CAST and other key terms used in this reference. There are five amplifier models in the Evolution Series: the 302 Stereo Power Amplifier, the 402 Stereo Power Amplifier, the 403 Three-channel Power Amplifier, the 600 Monaural Power Amplifier, and the 900 Monaural Power Amplifier.

Features

Evolution Series amplifiers are designed with a signal path that incorporates Krell Current Mode and CAST circuitry.

All amplifiers feature massive power supplies. The power supply makes use of extensive electrical and magnetic shielding to keep radiated interference out of critical amplifier circuits.

The Evolution 302 design utilizes a 3000 VA power supply. The Evolution 402 and Evolution 600 are equipped with a 5000 VA power supply, and the Evolution 403 and Evolution 900 house 6000 VA power supplies.

Internal high-current line conditioning circuitry filters RF noise on the AC mains, as well as compensating for asymmetrical power waveforms and DC on the mains.

Advanced microprocessor control monitors critical operational parameters. Output current, DC offset, rail voltages, and operating temperature are all continuously monitored.

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Krell Industries manual Evolution Amplifier Features and Technology

Evolution specifications

Krell Industries has established itself as a pioneer in high-performance audio equipment, renowned for delivering unparalleled sound quality and innovative technologies. Founded in 1980, the company quickly became synonymous with premium amplification, earning accolades from audiophiles worldwide. Over the years, Krell has evolved its product lineup to include not only amplifiers but also preamplifiers, digital audio players, and complete home theater systems.

One of the hallmark features of Krell products is their robust build quality. The company employs a strong engineering ethos that prioritizes durability and reliability in all its offerings. The iconic, heavy chassis of Krell components serves not only as a protective shell but also minimizes vibrations, which can adversely affect sound quality. This engineering strategy is evident in their signature line of amplifiers, which utilize high-grade materials and precision craftsmanship to ensure longevity and optimum performance.

Krell has also been at the forefront of technological advancements. The introduction of class A amplification circuitry is one such innovation that has been integral to the company's sound signature, allowing for minimal distortion and a rich, dynamic range. This technology ensures that even the most subtle nuances in music are reproduced with fidelity and clarity.

Moreover, Krell has embraced digital audio, creating DACs (digital-to-analog converters) and streaming devices that support high-resolution audio formats. This commitment to digital excellence reflects the company's understanding of evolving consumer preferences. Many of their devices feature wireless connectivity options, allowing users to stream music seamlessly from various sources without sacrificing audio quality.

In addition, Krell emphasizes user-friendly interfaces and versatility in its designs. Customers can often find features such as programmable presets, remote control functionality, and intuitive navigation systems, making it easier to tailor their listening experience.

Krell Industries’ evolution over the years showcases a dedication to audio fidelity, technological advancement, and stylish design. As the company continues to innovate within the high-end audio landscape, it maintains its reputation as a brand that audiophiles can trust, delivering exceptional sound experiences that stand the test of time.