Crown Audio Crown Mixer-Amplifiers 180MA, 280MA, and 1160MA Performance and Features

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Commercial Audio Series Mixer-Amplifiers

180MA

*1 kHz

Power

Minimum guaranteed power

80W

into 4 ohms or 70V/100V output

*1 kHz Power: refers to maximum power in watts at 1 kHz with 0.5% THD.

280MA

*1 kHz

Power

Minimum guaranteed power

 

per channel into 4 ohms or

80W

70V/100V output

*1 kHz Power: refers to maximum power in watts at 1 kHz with 0.5% THD.

*1 kHz

1160MAPower

Minimum guaranteed power

into 4 ohms or 70V/100V output 160W

*1 kHz Power: refers to maximum power in watts at 1 kHz with 0.5% THD.

1 Welcome

The Crown® 180MA, 280MA and 1160MA are high-value mixer-amplifiers for commercial and industrial audio. They provide 4-ohm and constant-voltage outputs (70V and 100V). The mixer-amps are part of Crown’s Commercial Audio Series, which also includes mixers and power amplifiers. These low-cost units provide all necessary features in a simple building- block format.

1.1 Features

4 to 8 inputs, 1 to 2 amplifier output chan- nels

Ideal for commercial and industrial use

Expandable by adding Crown Commercial Audio mixers or Commercial Audio power amplifiers (when available)

Balanced Phoenix-type mic/line inputs; touch-proofed screw-terminal speaker outputs

Independent Bass and Treble controls on each input

Any input can be sent to any output

Built-in four-tone generator

Priority muting

Advanced protection system includes output current limiting, DC protection, circuit breaker/ fuse, and thermal protection. Details available online at www.crownaudio.com.

Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specifications

Operation Manual

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Contents Some models may be exported under the name Amcron 180MA280MA Use only with a cart, stand, tripod, bracket, or Important Safety InstructionsDeclaration of Conformity Safety StandardCrown International, Inc European Representative’s Name and AddressTable of Contents Welcome FeaturesOutput Volume Controls Input Volume ControlsOutput Signal Presence Indicator Clip IndicatorAuxiliary Power Input Back Panel Controls and Connectors Reset SwitchAmplifier Outputs Connectors Amp Config SwitchHow to Attach Rack Ears SetupInstallation Choose Output Wire and Connectors Choose Input Wire and ConnectorsOutputs Maintain proper polarity +/- on output con- nectors Wire Your SystemTypical input and output wiring is shown in Figure Link In/Out Switches Phantom PowerHow to link another mixer to your mixer-amplifier How to set up Music-On-Hold outputPowering Up Remote Volume ControlIncluded Accessories Optional Accessories280MA Block Diagram Block DiagramNo input signal Input signal level is very low TroubleshootingSpecifications Service 12/01 WarrantyWorldwide Except USA & Canada Credit card information City State/Prov Postal Code CountryType of credit card MasterCard Personal/Consumer Visa

180MA, 280MA specifications

Crown Audio has established itself as a leader in the professional audio industry, and its 280MA and 180MA models epitomize its commitment to high-quality sound reinforcement. These amplifiers are designed for a range of applications, including commercial audio, live sound, and installation, providing unmatched performance and reliability.

The Crown 280MA is a robust two-channel amplifier that delivers an impressive power output of 280 watts per channel at 4 ohms. Its engineering focuses on efficiency and clarity, making it an excellent choice for any scenario where quality audio is essential. One of its standout features is the built-in mixer, which allows users to connect multiple audio sources seamlessly. This mixing capability is especially beneficial in environments such as restaurants, schools, and places of worship, where different audio sources may need to be balanced and controlled easily.

On the other hand, the Crown 180MA offers a more compact design but does not compromise on performance. With a power output of 180 watts per channel at 4 ohms, this model is perfect for smaller venues or setups. Like the 280MA, the 180MA also includes a built-in mixer, ensuring versatile audio management. Both models feature a streamlined user interface, enabling intuitive operation and quick adjustments.

Both amplifiers incorporate advanced technology such as Crown's proprietary DriveCore technology, which enhances power efficiency while reducing distortion. This technology allows the amplifiers to deliver clean, transparent power without the weight typically associated with traditional designs. The lightweight nature of both models makes installation and transport straightforward, adding to their practicality for sound engineers and event organizers.

The overall construction of the 280MA and 180MA is rugged, built to withstand the rigors of professional use. Features such as short-circuit protection, thermal protection, and overload protection ensure long-term reliability, even in demanding environments. Furthermore, the amplifiers offer flexible input options, including line-level and microphone inputs, allowing users to connect various audio sources without hassle.

In conclusion, the Crown 280MA and 180MA amplifiers represent a perfect blend of power, efficiency, and advanced technology. Their built-in mixers, robust protection features, and lightweight designs make them highly versatile for a wide array of applications. Whether used in commercial settings or live sound environments, these amplifiers ensure that the audio experience remains top-notch, reinforcing Crown Audio's reputation as an industry leader.