Crown Audio M Series Setup, Unpack Your Amplifier, Install Your Amplifier, Ensure Proper Cooling

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M Series Power Amplifiers

2 Setup

2.1 Unpack Your Amplifier

Please unpack and inspect your amplifier for any damage that may have occurred during transit. If damage is found, notify the transpor- tation company immediately. Only you can ini- tiate a claim for shipping damage. Crown will be happy to help as needed. Save the shipping carton as evidence of damage for the shipper’s inspection.

We also recommend that you save all packing materials so you will have them if you ever need to transport the unit. Never ship the unit without the factory pack.

YOU WILL NEED (not supplied):

Input wiring cables

Output wiring cables

Rack for mounting amplifier (or a stable surface for stacking)

WARNING: Before you start to set up your amplifier, make sure you read and observe the Important Safety Instruc- tions found at the beginning of this manual.

2.2 Install Your Amplifier

CAUTION: Before you begin, make sure your amplifier is disconnected from the power source, with the power switch in the “off” position and all level controls turned completely down (counterclock- wise).

Use a standard 19-inch (48.3 cm) equipment rack (EIA RS-310B). See Figure 2.1 for ampli- fier dimensions.

You may also stack amps without using a cabinet.

NOTE: When transporting, amplifiers should be supported at both front and back.

2.3 Ensure Proper Cooling

When using an equipment rack, mount units directly on top of each other. Close any open spaces in rack with blank panels. DO NOT block front, rear or side air vents. The side walls of the rack should be a minimum of two inches (5.1 cm) away from the amplifier sides, and the back of the rack should be a minimum of four inches (10.2 cm) from the amplifier back panel.

Figure 2.2 illustrates standard amplifier airflow.

M240M240

M240M240

M240M240

Figure 2.2 Airflow

Figure 2.1

Dimensions

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Operation Manual

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Contents M240 Some models may be exported under the name AmcronImportant Safety Instructions Importantes Instructions de SécuritéCrown International, Inc Safety StandardDeclaration of Conformity European Representatives Name and AddressTable of Contents Features How to Use This ManualWelcome Unpack Your Amplifier SetupInstall Your Amplifier Ensure Proper CoolingChoose Input Wire and Connectors Choose Output Wire and ConnectorsDistance Wire Your System Stereo Mode How to Parallel the Inputs in Stereo ModeSet the Mode Switch to Bridge Bridge-Mono ModeTypical input and output wiring is shown Inputs Use only the Channel-1 input connec- torStartup Procedure Connect to AC MainsPrecautions OperationCh-1 Level Control Ch-2 Level ControlPower Indicator Front Panel Controls Indicators Power SwitchReset Switch Signal, Clip and Fault IndicatorsFault Monitoring Crown SST ModulesOptional 0.775-V Input Sensi- tivity Setting Optional Barrier Block OutputsTamper-Resistant Hole Plugs Principles of Operation Series AmplifierNeutrik Speakon connector. Both Channel Troubleshooting Condition Power indicator is offSpecifications KHz with 0.5% THDVoltage Gain at maximum level setting Crosstalk below rated power, 20 Hz to 20 kHzCommon Mode Rejection CMR20 Hz to 1 kHz Ventilation Cooling Dimensions Weight Net ShippingService Warranty 12/01Worldwide 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.