Krell Industries Evolution 600 Remote Connections, VDC In/Out 12 V Trigger, Backlight Control

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Remote Connections

712 VDC In/Out (12 V Trigger)

The 12 V trigger allows you to turn the Evolution amplifier on or to stand-by from other components.

Out. The output sends 12 VDC (12 V trigger) power on/off signals to other Krell components and other devices that incorporate a 12 V trigger, allowing whole systems or parts of systems to be easily controlled remotely. Mono 3.5 mm connectors are used in the following configuration: Tip = +12 V, Sleeve = GND.

Notes

When an Evolution amplifier is in the operational mode, the 12 V trigger provides 12 Volts of DC output. When the amplifier is in the stand-by mode or off, the DC output is

0 Volts. A maximum of 30 mA is available from the 12 V trigger output.

Consult the owner's reference of the components used in a custom installation to take full advantage of the remote capabilities of an Evolution amplifier.

8Backlight Control

Ext In. Connect a 12 V trigger to the Ext In input connector to turn off the power status indicator (2) using a remote control. The switch must be set to On/Ext, in order for this to function (see below).

On/Ext. This activates the power status indicator. (This is the factory default position.)

Off. This turns off the power status indicator, during normal operation. The power status indicator remains illuminated for ten seconds after the power but- ton is pressed.

Power

9IEC Power Cord Receptacle

The power receptacle is for use with the provided 20 amp AC power cord. Use only the power cord supplied with your Evolution amplifier.

10Power Breaker Switch

Place this switch in the up position to put the amplifier in stand-by mode. Place the switch in the down position to turn off the amplifier.

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Contents Evolution Important Safety Instructions Contents List of Illustrations Letter from Dan D’Agostino Features Evolution Amplifier Features and TechnologyHow Cast and Krell Current Mode Interact Voltage Signal Transmission Traditional Audio SystemRevolutionary Krell Cast Technology Cast BasicsCast Cable Construction Evolution CastBest Musical Performance Definition of Terms Inputs and OutputsOperation Krell Current Mode TechnologyActive Cascode Topology Opening the Evolution Amplifier Shipping Carton Unpacking and PlacementAC Power Guidelines PlacementEvolution Amplifier Front Panel Evolution 402 shown Anatomy of an Evolution AmplifierPower Button PowerPower Status Indicator Front Panel DescriptionEvolution 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 Back Panel Description OutputsInputs Power Breaker Switch IEC Power Cord ReceptacleRemote Connections VDC In/Out 12 V TriggerXLR Pin Configuration Connecting an Evolution Amplifier to Your SystemCast Connections Balanced 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 Expedite Service Return Authorization ProcedureTo contact the Krell Service Department How to Return a ProductFrequency 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.