Crown Audio 1160MA, 180MA 280MA operation manual Block Diagram, Ch 3 and Ch 4 similar to Ch

Page 13

Commercial Audio Series Mixer-Amplifiers

2Setup

2.14Block Diagram

Phantom Power

Pre-Announce

Pre-Announce

Pre-Announce Gain

 

Input Gain

 

 

Chim e

 

Mic/Line

Line

 

Mi c

 

 

[Bal]

 

 

 

SPI

 

 

 

 

 

CH 1

Tone Control

 

 

 

 

 

Ch 1 Normal

RCA

 

 

[SW1]

 

Gain 1

Bass

Trebl e

 

Input Gain

 

 

Mic/Line

Line

 

 

Mi c

 

 

[Bal]

 

 

 

SPI

 

 

 

 

 

CH 2

Tone Control

 

 

RCA

 

 

 

 

Gain 2

Bass

Trebl e

 

 

 

 

 

 

 

Ch 3 and Ch 4 similar to Ch

2

 

 

 

 

Input Gain

 

 

 

 

 

 

Mic/Line

 

 

 

 

Line

 

 

 

 

 

 

 

 

 

 

Mi c

 

 

 

 

 

 

[Bal]

 

 

 

 

SPI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CH 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tone Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ch 5 Normal

RCA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[SW5]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gain 5

 

Bass

Trebl e

 

 

Input Gain

 

 

 

 

 

 

Mic/Line

 

 

 

 

Line

 

 

 

 

 

 

 

 

 

 

Mi c

 

 

 

 

 

 

[Bal]

 

 

 

 

SPI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CH 6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tone Control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RCA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gain 6

 

Bass

Trebl e

Ch 7 and Ch 8 similar to Ch 6

280MA Block Diagram

 

 

 

 

 

 

 

 

 

 

 

 

Version 1.0

 

 

Preamp Line Out 1

 

 

 

 

 

 

 

 

SPI 1

Clip 1

 

 

 

 

 

AMP Out 1

 

 

 

 

 

 

 

 

 

 

Ch 1 Priority

 

 

Link

Ou t

 

 

 

 

Output

 

100V

 

[SW2]

 

 

 

 

Power

 

 

 

 

 

 

 

 

 

70V

 

 

 

 

 

 

Transformer

 

 

 

 

 

 

In

 

 

 

 

 

 

 

VC A

 

 

VCA

HP Filter

 

AMP 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4 Ohms

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Amp Input 1

 

 

 

 

 

 

 

COM

 

Ch 1 to Amp 1

 

 

 

 

 

 

Limiter

 

 

 

 

[SW9]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Master 1

 

 

 

VCA

1

Scaling

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ch 1 to Amp 2

Mute

 

 

 

 

 

 

 

 

 

 

 

[SW10]

 

 

 

 

 

 

 

 

 

 

 

 

Ch 2 to Amp 1

Ch 1 Amp

1

 

 

 

 

 

 

 

 

 

[SW11]

Priority

 

 

 

 

 

 

 

 

 

 

 

 

Ch 5 Amp

2

 

 

 

 

 

 

 

 

 

Ch 2 to Amp 2

 

 

 

 

 

 

 

 

 

 

 

 

[SW12]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Preamp

 

 

 

 

 

 

 

 

 

SPI 2

Clip 2

 

Line Out

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ch 5 Priority

Mute

 

 

 

 

Link

Ou t

 

 

 

 

 

 

 

 

 

 

 

 

Power

 

[SW6]

 

 

 

 

 

 

In

 

 

 

 

 

 

 

 

 

HP Filter

AMP 2

 

 

 

 

Mute

VCA

 

 

VC A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ch 1 Over Ch

5

 

 

Amp Input 2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ch 5 to Amp 1

[SW 4]

 

 

 

 

 

 

 

 

 

Limiter

 

 

 

 

 

 

 

 

 

 

 

 

 

[SW17]

Priority

Master 2

 

 

 

 

 

 

 

 

 

 

 

 

VCA

2

 

Scaling

 

 

 

 

 

 

 

 

 

 

 

 

Ch 1 Over Ch

5

 

 

 

 

 

 

 

 

 

 

Ch 5 to Amp 2

[SW 3]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[SW18]

 

 

 

 

 

 

 

 

 

 

AMP Out

2

Ch 6 to Amp 1

 

 

 

 

 

 

 

 

Output

 

100V

 

[SW19]

 

 

 

 

 

 

 

 

 

70V

 

 

 

 

 

 

 

 

 

Transformer

 

 

 

 

 

 

 

 

 

 

 

 

4 Ohms

Ch 6 to Amp 2

 

 

 

 

 

 

 

 

 

 

COM

 

 

 

 

 

Typical Signal Path, Amp 1

 

 

 

 

 

[SW20]

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Typical Signal Path, Amp 2

 

 

 

 

 

Operation Manual

page 13

Image 13
Contents 280MA 180MASome models may be exported under the name Amcron 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 SwitchInstallation SetupHow to Attach Rack Ears Choose Output Wire and Connectors Choose Input Wire and ConnectorsTypical input and output wiring is shown in Figure Wire Your SystemOutputs Maintain proper polarity +/- on output con- nectors 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 AccessoriesCh 3 and Ch 4 similar to Ch Block DiagramNo input signal Input signal level is very low TroubleshootingSpecifications Service United States & Canada WarrantyWorldwide Except USA & Canada Items Excluded from this CROWN- WarrantyCrown Audio, Inc Model Serial #Fax Product purchased from *Business/Individual CountryThis page Intentionally Left Blank Model Payment OptionsIndividual or Business Name Phone # Fax # ‰ Personal/Consumer ‰ Business/CorporateCommercial Audio Series Mixer-Amplifiers Commercial Audio Series Mixer-Amplifiers

1160MA, 180MA 280MA specifications

Crown Audio, a leader in professional amplifier technology, has introduced a series of high-performance amplifiers that cater to a variety of applications. The 1160MA, 180MA, and 280MA models are designed to deliver exceptional sound quality, reliability, and efficiency, making them ideal for both commercial and residential audio installations.

The 1160MA is a versatile amplifier equipped with a powerful, high-efficiency Class D design that ensures maximum power output with minimal heat generation. Capable of delivering up to 1,160 watts per channel, this model is perfect for driving moderate-sized sound systems, whether in a church, auditorium, or live event. Its 70V and 100V compatibility allows for easy integration into existing audio setups, making it suitable for various applications.

The 180MA boasts a lower power output while retaining the same high-quality audio performance that Crown is renowned for. With 180 watts per channel, it is perfect for smaller installations where space and power consumption are considerations. This amplifier also features built-in processing capabilities, allowing users to fine-tune audio output to suit specific acoustic environments. Its compact design and robust construction make it a reliable choice for both permanent installations and portable setups.

The 280MA stands out with its increased power capacity, offering up to 280 watts per channel. It is designed to handle larger loads, making it ideal for venues that require robust sound reinforcement. Like its counterparts, the 280MA features advanced thermal management technology, ensuring reliable operation even during extended use. The inclusion of both analog and digital inputs provides versatility in connectivity, accommodating traditional audio systems alongside modern digital setups.

All three models share some key features, including an intuitive front-panel LCD for easy monitoring of performance metrics and settings. They also include comprehensive protection circuitry, safeguarding against over-voltage, over-current, and thermal overload, thereby ensuring long-term reliability.

In summary, the Crown Audio 1160MA, 180MA, and 280MA amplifiers excel in delivering high-fidelity audio across a range of applications. With their efficient Class D technology, advanced processing options, and robust construction, these amplifiers represent a union of power and flexibility, catering to audio professionals seeking performance and reliability in their sound systems.