Operation, Connect to AC Mains, Precautions

K Series Power Amplifiers

3 Setup

3.7 Connect to AC Mains

Connect your amplifier's power cord to the AC mains power source (power outlet).

WARNING: The third prong of this con- nector (ground) is an important safety feature. Do not attempt to disable this ground connection by using an adapter or other methods.

Amplifiers don't create energy. The AC mains voltage and current must be sufficient to deliver the power you expect. You must operate your amplifier from an AC mains power source with not more than 10% variation above or below the amplifier's specified line voltage and within the specified frequency requirements (indicated on the amplifier's back panel label). If you are unsure of the output voltage of your AC mains, please consult your electrician.

3.8 Startup Procedure

Use the following procedure when first turning on your amplifier:

1. Turn down the level of your audio source.

2. Turn down the Level controls of the amplifier.

3. Turn on the Power switch. The Enable indica- tor next to the Power switch should glow.

4. Turn up the level of your audio source to an optimum level.

5. Turn up the Level controls on the amplifier until the desired loudness or power level is achieved.

6.Turn down the level of your audio source to its normal range.

If you ever need to make any wiring or installa- tion changes, don't forget to disconnect the power cord.

For help with determining your system's opti- mum gain structure (signal levels) please refer to the Crown Amplifier Application Guide, available online at www.crownaudio.com.

4 Operation

4.1 Precautions

Your amplifier is protected from internal and external faults, but you should still take the fol- lowing precautions for optimum performance and safety:

1.Before use, your amplifier must be config- ured for proper operation as described in the Setup section of this manual. Improper wiring can result in serious operating difficulties. For advanced setup techniques, consult Crown's Amplifier Application Guide available online at www.crownaudio.com.

2.Use care when making connections, select- ing signal sources and controlling the output level. The load you save may be your own!

3.Do not short the ground lead of an output cable to the input signal ground. This may form a ground loop and cause oscillations.

4.Never connect the output to a power supply, battery or power main. Electrical shock may result.

5.Tampering with the circuitry, or making unauthorized circuit changes may be hazardous and invalidates all agency listings.

6.Do not operate the amplifier with the Clip LED constantly flashing.

7.Do not overdrive the mixer, which will cause clipped signal to be sent to the amplifier. Such signals will be reproduced with extreme accu- racy, and loudspeaker damage may result.

8.Do not operate the amplifier with less than the rated load impedance. Due to the amplifier's output protection, such a configuration may result in premature clipping and speaker dam- age.

Crown is not liable for damage that results from overdriving other system components.

page 10

Operation Manual

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.