Crown Audio M Series operation manual Welcome, Features, How to Use This Manual

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M Series Power Amplifiers

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1 Welcome

The M Series of power amplifiers from Crown® represents a new era in affordable, quality power amplification. The line consists of two models in a uniform, rugged chassis, incorpo- rating the best of tried-and-true design princi- ples and innovative features.

Modern power amplifiers are sophisticated pieces of engineering capable of producing extremely high power levels. They must be treated with respect and correctly installed if they are to provide the many years of reliable service for which they were designed.

In addition, M Series amplifiers include a num- ber of features which require some explanation before they can be used to their maximum advantage.

Please take the time to study this manual so that you can obtain the best possible service from your amplifier.

1.1 Features

• Accurate, uncolored sound with very low dis- tortion for the best in music and voice repro- duction.

Bridge-mono/stereo mode switch allows your amplifiers/speakers to be set up in the configuration that best suits your needs.

Advanced protection circuitry guards against shorted outputs, open circuits, DC, mis- matched loads, general overheating, high-fre- quency overloads and internal faults.

Extremely versatile, handling a wide range of speaker impedances and outputs.

Switchable input sensitivity.

Proportional speed fan optimizes cooling efficiency.

Can be mounted in EIA standard 19-in. rack, shallow 35.5-cm rack, or stacked on top of each other.

Features both standard 5-way binding posts and genuine Neutrik® Speakon® output con- nectors.

Choice of 6.35-mm phone plug, XLR or bar- rier strip inputs. Optional SST crossovers may provide other input connector options.

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

1.2 How to Use This Manual

This manual provides you with the necessary information to safely and correctly setup and operate your amplifier. It does not cover every aspect of installation, setup or operation that might occur under every condition. For addi- tional information, please consult Crown’s Amplifier Application Guide (available online at www.crownaudio.com), Crown Technical Sup- port, your system installer or retailer.

We strongly recommend you read all instruc- tions, warnings and cautions contained in this manual. Also, for your protection, please send in your warranty registration card today. And save your bill of sale — it’s your official proof of purchase.

Operation Manual

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Contents Some models may be exported under the name Amcron M240Importantes Instructions de Sécurité Important Safety InstructionsDeclaration of Conformity Safety StandardCrown International, Inc European Representatives Name and AddressTable of Contents Welcome FeaturesHow to Use This Manual Install Your Amplifier SetupUnpack Your Amplifier Ensure Proper CoolingDistance Choose Input Wire and ConnectorsChoose Output Wire and Connectors How to Parallel the Inputs in Stereo Mode Wire Your System Stereo ModeTypical input and output wiring is shown Bridge-Mono ModeSet the Mode Switch to Bridge Inputs Use only the Channel-1 input connec- torConnect to AC Mains Startup ProcedureOperation PrecautionsCh-2 Level Control Ch-1 Level ControlReset Switch Front Panel Controls Indicators Power SwitchPower Indicator Signal, Clip and Fault IndicatorsCrown SST Modules Fault MonitoringTamper-Resistant Hole Plugs Optional 0.775-V Input Sensi- tivity SettingOptional Barrier Block Outputs Series Amplifier Principles of OperationNeutrik Speakon connector. Both Channel Condition Power indicator is off TroubleshootingKHz with 0.5% THD SpecificationsCommon Mode Rejection CMR20 Hz to 1 kHz Crosstalk below rated power, 20 Hz to 20 kHzVoltage Gain at maximum level setting Ventilation Cooling Dimensions Weight Net ShippingService 12/01 WarrantyWorldwide Except USA & Canada This page Intentionally Left Blank Crown Audio Factory Service Information Series Power Amplifiers Series Power Amplifiers

M Series specifications

Crown Audio's M Series amplifiers are a renowned collection in the realm of professional audio equipment, recognized for their reliability, performance, and innovation. Designed specifically for commercial installations, the M Series provides powerful amplification with exceptional audio quality, making it a prime choice for venues such as auditoriums, churches, and theaters.

One of the standout features of the M Series is its high-efficiency Class D topology. This design not only reduces power consumption but also minimizes heat generation, which is crucial for long-term reliability and performance in demanding environments. The amplifiers are capable of delivering high output power while maintaining low distortion, ensuring that the audio experience remains clear and robust, even at high volumes.

The M Series amplifiers are equipped with a range of power options, ensuring that users can find a model that suits their specific needs. The lineup typically includes models ranging from 2-channel to 4-channel configurations, with power ratings suitable for various applications. This versatility allows for flexible setups, whether powering large PA systems or smaller setups for more intimate settings.

Integration with control systems is effortless, thanks to the M Series’ comprehensive connectivity options. The amplifiers feature XLR and TRS inputs, allowing for seamless integration with a wide array of audio sources. Their ability to be controlled remotely allows for convenient adjustments during live events or installations, further enhancing their usability.

The built-in DSP (Digital Signal Processing) is another critical highlight of the M Series. This technology provides users with significant control over the audio signal, enabling adjustments such as equalization, limiting, and crossover settings to fine-tune the sound output to perfection. The advanced protection circuitry ensures that the amplifiers remain safe from overheating and signal overloads, thus extending their lifespan and reliability.

Robust construction is a signature characteristic of the M Series, designed to withstand the rigors of professional use. The amplifiers feature a rugged chassis that can endure the demands of touring or permanent installations. Additionally, the fan-cooled design aids in maintaining optimal operating temperatures, ensuring performance consistency even during extended periods of use.

In conclusion, Crown Audio's M Series amplifiers combine power, efficiency, and cutting-edge technology to create an exceptional solution for professional audio applications. Whether used in concert halls, clubs, or corporate environments, the M Series continues to set a high standard for reliability and performance in the world of audio amplification.