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A u d i o C o n n e c t i o n s

Inputs

For each channel, there is a 1/4” phone jack socket, male & female XLR and pluggable removable terminal block connectors provided for signal input on the rear panel of the amplifier. Each is electronically balanced at an impedance greater than 10k ohms.

The removable terminal block, phone jack and both XLR connectors are internally wired in parallel, and therefore any socket may be used for the input signal. The connectors not used in this manner function as loop-through connectors for daisy chaining a number of channels.

The ‘HOT, + or in phase’ connection for the removable terminal block is to pin 2 of the XLRs and the TIP of the phone jack.

The ‘COLD, -, or out of phase’ connection for the removable terminal block is to pin 3 of the XLRs and the phone jack RING.

The removable terminal block earth symbol pin, pin 1 of the XLR’s and the phone jack SLEEVE are internally connected to the chassis. The screen of the input cable should always be connected to one of these points to ensure that EMC regulations are met. The cable shield ground should also be connected to the equipment which is providing the input signal.

balanced wiring to pulse XLR

balanced wiring to pulse phone jack

When feeding the PULSE 2x1100 from unbalanced sources, connect the signal conductor to the + pin of the removable terminal block, pin 2 of the XLR or the phone jack TIP, with the cable screen going to pins - and ground of the removable terminal block, 1 and 3 of the XLRs or the SLEEVE and RING of the phone jack.

Unbalanced wiring to pulse XLR

Unbalanced wiring to pulse phone jack

For bridge mode operation, channel 1 is used as the input signal for the amplifier. The channel 2 input is ignored when bridge mode is enabled.

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Crown Audio 21100 user manual Inputs, D i o C o n n e c t i o n s
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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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