Krell Industries 400 Unpacking and Placement, Opening the Evolution Amplifier Shipping Carton

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Unpacking and Placement

This section describes the procedures for safely unpacking and placing your Evolution amplifier. The amplifier and accessories are shipped in 1 carton. The dimensions of the amplifier are shown in the specifications section starting on page 31.

Two people are needed to remove the Evolution amplifier from its shipping box safely and easily.

Opening the Evolution Amplifier Shipping Carton

1.Open the shipping carton and remove the top layer of foam. The carton con- tains these items:

1 Evolution amplifier chassis

1 20 amp AC power cord

1 12 VDC (12 V trigger) cable

1 Packet containing the Quick Setup Guide and the warranty registration card

2.Orient the shipping box so that one person stands at the front of the amplifier and one person stands at the back of the amplifier. Both people need to grab a pair of the cardboard handle cutouts (one pair located at the front of the amplifier and one pair located at the back of the amplifier) and simultaneously lift the amplifier straight up, out of the carton. Bend and lift with your knees, not your back.

3.Place the amplifier in a safe location, and remove the protective plastic wrap- ping.

Note

Save all packing materials. If you need to ship the Evolution amplifier in future, repack the unit in its original packaging to prevent shipping damage.

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Contents Evolution Important Safety Instructions Contents List of Illustrations Letter from Dan D’Agostino Features Evolution Amplifier Features and TechnologyCast Basics Voltage Signal Transmission Traditional Audio SystemHow Cast and Krell Current Mode Interact Revolutionary Krell Cast TechnologyBest Musical Performance Cast Cable ConstructionEvolution Cast Operation Definition of TermsInputs and Outputs Active Cascode Topology Krell Current ModeTechnology Opening the Evolution Amplifier Shipping Carton Unpacking and PlacementAC Power Guidelines PlacementEvolution Amplifier Front Panel Evolution 402 shown Anatomy of an Evolution AmplifierFront Panel Description PowerPower Button Power Status IndicatorEvolution 302 Stereo Amplifier Back Panel Evolution 402 Stereo Amplifier Back Panel Evolution 403 Multi-channel Amplifier Back Panel Evolution 400 Monaural Amplifier Back Panel Evolution Monaural Amplifier Back Panel Evolution 600 shown Inputs Back Panel DescriptionOutputs VDC In/Out 12 V Trigger IEC Power Cord ReceptaclePower Breaker Switch Remote ConnectionsBalanced Connections Connecting an Evolution Amplifier to Your SystemXLR Pin Configuration Cast ConnectionsConnection Steps Evolution DC Protection Circuitry/Using Tube PreamplifiersSection Five How to Evaluate Amplifier Operation Troubleshooting System NoiseDiagnostic Code Possible Condition Course of Action Error CodesQuestions and Answers Warranty Page How to Return a Product Return Authorization ProcedureHow to Expedite Service To contact the Krell Service DepartmentFrequency Response SpecificationsRms at 4 Ohms Hz to 20 kHz +0, -0.18 dB Hz to 120 kHz +0, -3 dB WNER’S Reference Krell INDUSTRIES, INC

400, 900, Evolution 600 specifications

Krell Industries is a renowned namesake in the high-end audio and home theater equipment market, revered for its cutting-edge engineering and exceptional performance. Among its standout offerings are the Krell 900, Evolution 600, and Evolution 400, each designed for audiophiles seeking to elevate their listening experience.

The Krell 900 is a powerhouse amplifier that marries high-output power with a sophisticated design. Featuring Class A/B amplification, it operates with minimal distortion, ensuring that sound quality remains pure even at high volume levels. The unit boasts a massive power supply that allows it to handle a wide variety of speaker impedances effortlessly. With its robust build and a sleek, minimalist aesthetic, the Krell 900 is not only a technical marvel but also a visual centerpiece in any audio setup.

On the other hand, the Evolution 600 represents Krell’s commitment to harnessing the latest technology to achieve superior sound. This amplifier utilizes Krell’s proprietary current mode topology, which optimizes power delivery and offers instantaneous response to dynamic audio signals. The Evolution 600 is equipped with advanced thermal management systems that keep the unit cool during extended use, ensuring reliability and longevity. Furthermore, the elegant design complements any home decor, making it a stylish and functional addition to high-end audio environments.

The Evolution 400, while slightly smaller, exemplifies Krell’s hallmark of uncompromising sound quality. It integrates many of the same high-end technologies found in its larger counterparts but in a more compact form. With a focus on delivering dynamic range and clarity, the Evolution 400 is ideal for both music and home theater applications. Advanced digital signal processing, combined with analog audio circuitry, ensures that every note and detail is captured with impeccable accuracy.

All three models prioritize connectivity and user experience, featuring a range of inputs, including balanced XLR and unbalanced RCA options, allowing seamless integration into various audio systems. Each amplifier emphasizes robust build quality, featuring heavy-duty chassis and meticulously designed circuit layouts to minimize interference and signal degradation.

In conclusion, Krell Industries’ 900, Evolution 600, and Evolution 400 amplifiers exemplify the pinnacle of audio craftsmanship. They combine innovative technologies, premium components, and stunning aesthetics, making them the perfect choice for discerning audio enthusiasts who demand nothing but the best in sound reproduction.