Crown Audio operation manual CE Series Amplifier Block

Page 20

CE Series Power Amplifiers

5 Principles of Operation

Figure 5.1

CE Series

Amplifier Block

BALANCED

Diagram INPUTS (Shown with

Standard Input Module)

TO CLIP

 

COMPRESSOR

INDICATOR

 

CONTROL

 

 

 

BALANCE

VARIABLE

BUFFER

 

GAIN STAGE

 

INPUT STAGE

 

 

 

TO SIGNAL

PRESENCE

INDICATOR

+HI-VOLTAGE BOOTSTRAP

 

 

 

 

 

 

TURN-ON

 

 

 

 

 

 

DELAY

 

 

CURRENT

 

 

 

 

 

 

SOURCE

TRIPLE-DEEP

HEATSINK

 

 

 

 

 

 

 

 

DARLINGTON

TEMPERATURE

 

 

 

 

NPN POSITIVE

 

 

 

 

 

 

OUTPUT STAGE

 

 

+

 

 

 

 

 

 

 

 

 

TDVI

 

OUTPUT

 

 

BIAS

 

CONTROL

 

 

LIMITER

 

 

 

 

 

 

OUTPUT

 

 

 

TRIPLE-DEEP

 

 

 

 

 

 

DC

 

 

 

 

DARLINGTON

 

 

 

TRANSLATOR

LVA

NPN NEGATIVE

 

PROTECT

 

 

 

 

OUTPUT STAGE

 

 

 

ERROR

 

 

HEATSINK

 

 

 

AMP

–VCC

–VCC

TRANSFORMER

TO FAULT

 

TEMPERATURE

 

 

 

 

TEMPERATURE

INDICATOR

 

 

 

PROPORTIONAL

 

+ VCC

 

DC PROTECT

 

SPEED

POWER

 

 

+ 15V

 

 

FAN

 

 

LOGIC

 

 

 

 

 

 

CONTROL

SUPPLY

– 15V

 

 

 

 

 

 

 

 

 

 

– VCC

 

 

TO

 

 

 

 

 

 

FAULT

 

 

 

BOOTSTRAP

+ HI-VOLTAGE

 

CONNECTOR

 

FAN

 

 

 

 

 

CIRCUIT

BOOTSTRAP

MUTE

page 20

Operation Manual

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Contents CE Series Some models may be exported under the name AmcronImportant Safety Instructions CE Series amplifiers require Class 2 output wiringWatch for These Symbols Use only with a cart, stand, bracket, or tableSafety Standard Crown International, IncTCF Technical Certificate No C975CRI1.ABS Competent Body’s Name and AddressTable of Contents Features How to Use This ManualWelcome Accurate, undistorted soundYou may also stack amps without using a cabinet SetupUnpack Your Amplifier Install Your Amplifier Choose Input Wire and Connectors Balanced Input Connector WiringChoose Output Wire and Con- nectors Neutrik Speakon ConnectorSee the next page for Bridge-Mono wiring Wire Your System Stereo ModeHow to Parallel the Inputs Bridge-Mono Mode 11 Typical System Wiring, Bridge-Mono ModeStartup Procedure Input Sensitivity SwitchSensitivity Switch Precautions OperationControls, Indicators and Connectors Front Panel Controls Indicators Power Switch Reset SwitchFault Indicators Clip IndicatorsAdvanced Features Options SST-SBSC-3632T SST-SBSC 4632TFault Monitoring Location of Fault JackOptions Accessories Alternate Output ConnectorsOptional 0.775 V Input Sensitivity Setting Tamper-Resistant Hole PlugsPower LED is driven from the low-voltage supply Principles of OperationCE Series Amplifier Block Troubleshooting Condition Power indicator is offSpecifications 120 VAC, 60 Hz Units, Bridge mono modeService Warranty Items Excluded from this CROWN- Warranty Worldwide Except USA & CanadaThis page intentionally left blank Crown Factory Service Information Nature of Problem

CE Series specifications

Crown Audio’s CE Series amplifiers are designed to deliver high performance and reliability for a variety of applications, including live sound, commercial installations, and houses of worship. Renowned for their durability and efficiency, the CE Series combines advanced technology with user-friendly features to appeal to both professional audio engineers and casual users.

One of the standout characteristics of the CE Series is its robust construction. Built to withstand the rigors of live events and handling, these amplifiers are housed in a rugged chassis that ensures long-term durability. The fan cooling system is designed for efficient thermal management, keeping the amplifier cool even during extended use, which is crucial for maintaining optimal performance.

The CE Series boasts a range of power options, making it versatile for different setups. With models delivering from 1500W to over 4000W per channel, users can choose the appropriate amplifier to match their specific requirements. This flexibility allows the CE Series to support a wide array of speakers and systems, whether for small venues or large-scale arenas.

Crown utilizes innovative technologies in the CE Series amplifiers. One of the key features is the DSP (Digital Signal Processing), which enhances sound quality and allows for precise control over the audio output. The onboard DSP includes presets for various speaker configurations, EQ settings, and time alignment features, facilitating quick adjustments to achieve the desired sound quality.

Another notable feature is the built-in limiters, which protect both the amplifier and speakers from damage due to overload or clipping. This protection ensures reliability during high-pressure situations, such as concerts or events where audio levels can fluctuate dramatically.

Connectivity options in the CE Series are also comprehensive. The amplifiers come equipped with both analog and digital inputs, allowing compatibility with a wide range of audio sources. Additionally, the rear panel includes speakON® outputs for quick and secure speaker connections.

With its combination of power, reliability, and advanced technology, Crown Audio’s CE Series amplifiers stand out in the crowded field of professional audio equipment. These features make the CE Series an excellent choice for audio professionals seeking quality performance across various applications. Whether for a permanent installation or a touring setup, the CE Series amplifiers deliver the sound, durability, and versatility required by today’s audio engineers.