Crown Audio K Series operation manual Troubleshooting, Speakers not connected

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K Series Power Amplifiers

6 Troubleshooting

CONDITION: No power to the amplifier.

POSSIBLE REASON:

•The amplifier's Power switch is off.

•The amplifier is not plugged into the power receptacle.

•The amplifier's low-voltage power supply fuse has blown. Return amp to Crown or an authorized Crown Service Center for servicing.

CONDITION: Distorted sound.

POSSIBLE REASON:

•Input signal level is too high. Turn down your amplifier level controls. NOTE: Your amplifier should never be operated at a level which causes the Clip LED to flash constantly.

•Load is wired incorrectly or Bridge Mono Switch is set incorrectly. Check both.

Note: If sound is distorted but clip LED is not flashing, check mixer levels and gain staging, mixer clip lights, and pads built into micro- phones.

CONDITION: Input signal but no sound.

POSSIBLE REASON:

•The amplifier has just been turned on and is still in the 4-second turn-on delay.

•Speakers not connected.

CONDITION: No input signal.

POSSIBLE REASON:

•Input signal level is very low.

•Level controls are turned down.

•Input cables are not connected.

CONDITION: TLC indicator glows brightly.

POSSIBLE REASON:

•The amplifier is protecting itself with the thermal level control system. Turn on a fan or turn down the level controls.

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Operation Manual

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Contents Series Some models may be exported under the name AmcronImportant Safety Instructions Watch for These SymbolsTCF Technical Certificate No C974CRI1.ABS Safety StandardCrown International, Inc Competent Body’s Name and AddressTable of Contents Welcome How to Use This ManualFeatures You may also stack amps without using a cabi- net SetupUnpack Your Amplifier Install Your Amplifier Choose Input Wire Connectors Choose Output Wire and Con- nectorsSetup Bridge-Mono Mode See FigureSee Figure Mono Input to Dual OutputsMono Input to Bridge- Mono Output Operation Startup ProcedurePrecautions Connect to AC MainsSecond delay while the amplifier performs a Front Panel Controls IndicatorsEnable Indicator Power SwitchInput Switch Back Panel Controls ConnectorsBridge Output Switch XLR-type Input ConnectorAdvanced Features Troubleshooting Speakers not connectedSpecifications VAC, 60 Hz Units, Bridge mono modeService Warranty 12/01Worldwide Except USA & Canada Type of credit card City State/Prov Postal Code CountryCredit card information 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.
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