Crown Audio 21100 user manual Status Indication, Fault and both Temp lights flashing

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T r o u b l e s h o o t i n g . . .

Status Indication

There is a microprocessor inside each PULSE amplifier responsible for monitoring all critical systems. The status of which are displayed on the front panel lights.

Their indication is as follows:

Fault and both Temp lights flashing

The amplifier has just been plugged in and the microprocessor is carrying out a test sequence. This is normal and will stop after about 7 seconds.

Power light on, Operate light off, Fault light on & flashing

The microprocessor has been unable to start the main power supply. If the condition persists for more than 1 hour without an input signal, check the rear panel fuse. If the fuse is blown and a replacement also fails (or the fault persists), return the amplifier to an authorized service center. Information is in the warranty section.

Power light on, Operate light off, Fault light on (not flashing)

(The Operate and Fault light may be flashing very slowly accompanied by internal clicking). A fault has been detected with one or more of the amplifier channels and the processor has shut down the power supply to protect both the amplifier and your speakers. Depending on the fault it may try to resume operation again indefinitely, or give up after a number of attempts. If after disconnecting all input and output leads and switching the amplifier off and on again (to reset it), the condition persists, return the amplifier to an authorized service center. Information is given in the warranty section.

Power light on, Operate light on, Fault light on, Temp light on

One or both of the heatsinks have exceeded their maximum temperature. When in this condition, the channel associated with each Temp light will be muted until the temperature has fallen to a safe level. Normal operation will then automatically resume. The most likely causes of an over-temperature condition are blocked rear air intake, obstructed front air exhausts or, if fitted, clogged fan filters.

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Contents Professional Power Amplifier Typical applications N t e n t sF e t y I n f o r m a t i o n Important Safety InstructionsIntroduction T r o d u c t i o n & U n p a c k i n gUnpacking C h a n i c a l Installation Live/Hot P o w e r C o n n e c t i o nD i o C o n n e c t i o n s InputsStereo operation OutputsBridge switch 0C o n t r o l o p e r a t i o n Power SwitchLevel controls 1 AC Present FaultSignal D i c a t o r sBridge D i c a t o r s ClipP i c a l a p p l i c a t i o n s Two amplifiers used in bridge modeTwo channel stereo operation Calculating Impedance O s s a r y Frequency Response DBu or dBvDistortion FrequencyTransient Removable terminal blockSpeakon Ohms 700W rms 1100W rms 1500W rms Specification sProblem Distorted sound ChecklistTroubleshooting Problem No outputStatus Indication Fault and both Temp lights flashingR v i c e & W a r r a n t y Worldwide ServiceService Shipping Instructions Crown Audio Customer ServiceThree Year Full Warranty Division of Harman International Industries

21100 specifications

Crown Audio 21100 is a high-performance power amplifier that has become a staple in the professional audio industry, revered for its reliability and sound quality. Designed for both live sound and fixed installation applications, this amplifier is particularly noted for its robust build and impressive technical capabilities.

One of the standout features of the Crown 21100 is its power output. With the ability to deliver an impressive wattage, it ensures that sound is not only loud but clear, making it ideal for a range of environments, including concert venues, theaters, and public address systems. The amplifier is capable of driving multiple speaker configurations without distortion, providing both headroom and clarity at high volumes.

In terms of technology, the Crown 21100 employs the patented Class I technology, which is known for its high efficiency and low heat generation. This means that the amplifier can operate for extended periods without overheating, making it especially suitable for demanding applications. Additionally, the Crown 21100 is equipped with advanced protection circuitry that guards against short circuits, thermal overload, and input signal clipping, ensuring longevity and reliability in various settings.

Another notable characteristic is the amplifier's versatility in connection options. The Crown 21100 is designed with multiple input configurations, including XLR and 1/4-inch TRS connectors, making it compatible with a wide array of audio sources. Furthermore, its balanced inputs help to minimize noise and interference, ensuring that the sound quality remains pristine even in challenging environments.

Crown Audio also places a significant emphasis on ease of use. The 21100 features intuitive front panel controls and indicators, which allow audio engineers to monitor levels and make adjustments quickly and efficiently. This user-friendly design is particularly beneficial during live performances, where quick decision-making is crucial.

In addition, the amplifier's rugged construction ensures that it can withstand the rigors of touring and extensive use. Its durable chassis is designed to resist the wear and tear associated with transport and installation, making the Crown 21100 a reliable choice for both rental companies and sound professionals.

In conclusion, the Crown Audio 21100 stands out in the competitive landscape of power amplifiers with its powerful output, advanced technology, versatile connectivity, user-friendly design, and rugged reliability. These features make it an exceptional choice for those seeking high-quality audio performance in professional settings.
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