Crown Audio K Series operation manual Advanced Features

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K Series Power Amplifiers

5 Advanced Features

NOTE: For detailed information about these Crown amplifier features, please consult the Crown Amplifier Application Guide, available on the Crown website at www.crownaudio.com.

5.1 Protection Systems

Your Crown amplifier provides extensive protection systems, including protection against shorted outputs, open circuits, DC, mismatched loads, general overheating, high-frequency over- loads and internal faults.

5.1.1 TLC

If the amplifier starts to overheat, the thermal level control system will subtly and dynamically reduce the gain as needed. Trans- former overheating (extremely unlikely) will result in a temporary shutdown. When the amplifier has cooled to a safe temperature, the transformer will automatically reset itself.

5.1.2 Out-of-band Filtering

An 8-Hz high-pass filter protects the amplifier and loads from subsonic frequencies. A 30 kHz low-pass filter offers protection from ultrasonic frequencies.

5.1.3 Inrush Limiting

The “soft-start” feature prevents the amplifier from drawing a large inrush current when it is first turned on.

5.1.4 Fuse

A fuse is provided to protect the power supplies from excess cur- rent. It is located on the back panel below the power cord.

K-Series amplifiers that are configured to use 100-120 VAC power should use the following fuses:

K2: 20-amp fuse.

K1: 15-amp fuse.

K-Series amplifiers that are configured to use 200-250 VAC should use the following fuses:

K2: 10-amp fuse.

K1: 8-amp fuse.

5.2 Advanced Features

BCA (Balanced Current Amplifier) technology allows high levels of power output without all the associated heat found in a conventional amplifier. This highly efficient design works without using a cooling fan.

Accurate, uncolored sound with very low distortion.

High damping factor for tight, clean bass response.

Advanced design for energy conservation.

Versatile, handling a wide range of speaker impedances and outputs.

Switchable input sensitivity.

“Soft Start” feature prevents the amplifier from drawing large currents when it is first turned on.

Can be mounted in standard 19-inch (48.3-cm) rack. Uniquely molded, cast-aluminum front panel provides exceptional air circulation.

Advanced protection circuitry guards against shorted out- puts, open circuits, DC, mismatched loads, general over- heating, high-frequency overloads and internal faults.

Mono mode switches allow you to set up your amps/speak- ers in the configuration that best suits your needs, with combined amp inputs, combined amp outputs, or both.

Backed by the industry’s ONLY three-year, no-fault, fully transferable warranty.

Operation Manual

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Contents Some models may be exported under the name Amcron SeriesWatch for These Symbols Important Safety InstructionsCrown International, Inc Safety StandardTCF Technical Certificate No C974CRI1.ABS Competent Body’s Name and AddressTable of Contents Features How to Use This ManualWelcome Unpack Your Amplifier Install Your Amplifier SetupYou may also stack amps without using a cabi- net Choose Output Wire and Con- nectors Choose Input Wire ConnectorsBridge-Mono Mode See Figure SetupMono Input to Bridge- Mono Output Mono Input to Dual OutputsSee Figure Precautions Startup ProcedureOperation Connect to AC MainsEnable Indicator Front Panel Controls IndicatorsSecond delay while the amplifier performs a Power SwitchBridge Output Switch Back Panel Controls ConnectorsInput Switch XLR-type Input ConnectorAdvanced Features Speakers not connected TroubleshootingVAC, 60 Hz Units, Bridge mono mode SpecificationsService 12/01 WarrantyWorldwide Except USA & Canada Credit card information City State/Prov Postal Code CountryType of credit card MasterCard Personal/Consumer Visa

K Series specifications

Crown Audio K Series amplifiers represent the pinnacle of professional audio amplification, delivering exceptional power, performance, and reliability. Designed for a wide range of applications, including live sound reinforcement and installation scenarios, the K Series is a testament to the innovation and engineering excellence that Crown Audio is known for.

One of the standout features of the K Series is its output power. With models available that provide up to 4,000 watts per channel at 4 ohms, these amplifiers can drive even the most demanding speaker systems with ease. This makes the K Series ideal for large venues and events where high sound pressure levels are required.

The K Series amplifiers incorporate advanced technology such as Crown's highly efficient Class-D design, which not only reduces weight but also minimizes power consumption, making them more environmentally friendly. This efficiency allows for greater power density, meaning more power can be delivered without excessive heat generation. In addition, the K Series uses a patented "Power Factor Correction" technology, ensuring that the amplifiers perform consistently under varying load conditions, which is crucial for maintaining sound quality in professional applications.

Another key characteristic of the K Series is its robust build quality. Constructed with durable materials and featuring an efficient cooling system, these amplifiers are designed to withstand the rigors of touring and installation use. Furthermore, the K Series is equipped with comprehensive protection circuitry, including over-temperature, short circuit, and RF interference protection, guaranteeing reliable operation even in challenging environments.

The K Series also offers advanced connectivity options, with models equipped with digital signal processing capabilities. This allows users to tailor the audio output to suit specific acoustic requirements, including equalization, delays, and limiting. Additionally, the K Series is compatible with the Harman HiQnet Network, enabling remote monitoring and control via a user-friendly graphical interface.

With a combination of high output power, advanced technologies, and robust design, the Crown Audio K Series amplifiers provide exceptional performance for professionals seeking reliable, high-quality sound amplification solutions. Whether for concert tours, festivals, or permanent installations, the K Series continues to set the standard in audio amplification. Its features and innovations ensure that it remains a preferred choice among audio professionals worldwide, delivering powerful, crystal-clear sound that meets the demands of any audio application.