Crown Audio 1160MA Back Panel Controls and Connectors Reset Switch, Auxiliary Power Input

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Commercial Audio Series Mixer-Amplifiers

1 Welcome

1.3 Back Panel Controls and Connectors

J. Reset Switch

Resets the circuit breaker that protects the power supply. 220/230/240V units have a fuse instead.

K. Auxiliary Power Input

2-position terminal strip for 24 VDC (±10%) backup power. Accepts up to 10 AWG terminal forks. NOTE: To

prevent a spark when attaching a battery, have unit turned on and connected to the mains supply.

L. Amplifier Outputs Connectors

One per channel, 4-position terminal strip with COM (Com- mon), 4 ohms, 70V and 100V terminals. Accepts up to 14 AWG terminal forks. Non-touch cover included.

M. Amp Config Switch

A DIP switch with two functions:

1.Assigns one of the inputs as the priority input for each output, thereby temporarily muting the remaining inputs. Muting is activated by contact closure.

2.Global enable switch for phantom power. Does not affect RCA inputs. Default position is off.

N. Input Routing Switch (280MA only)

DIP switches that assign each input signal to each output. Two switches per input.

O. Link In/Out Switch

Slide switch, one per channel. With the Link Switch IN, any signal applied to the Amp Input connector will be mixed with the input signal(s). With the Link Switch OUT, only the signal from the Amp Input Connector will appear at the amplifier output.

The tone generator has been omitted. Call Crown Tech Sup- port if you have a tone generator question.

P. Mic/Line Input Connector

3-pin Phoenix-type, balanced, one per input channel.

Q. Mic/line Switch

Selects mic-level or line-level input signals. One switch for each balanced input.

R. Dual RCA Input Connector

For stereo music signals, unbalanced, summed together, two connectors per input channel. If required, both the mic/ line and RCA inputs may be used at the same time. The mic/ line gain switch does not affect the RCA gain, which is fixed relative to mic/line. The mic/line and RCA signals are mixed. Note: Other equipment connected to the RCA jacks should be connected to the same AC power source as the mixer-amp to avoid hum.

S. AC Power Inlet

Detachable IEC.

T. Priority Connector

3-pin Phoenix-type connector allows Input 1 or Input 5 (280MA only) to mute other input signals by contact clo- sure.

U. Output VCA Connector

4-pin Phoenix-type connector for one (180MA) or two (280MA) VCA control lines of +10 VDC and ground. Com- patible with Crown 1-VCAP and 4-VCAP modules.

V. Amp Input Connector

3-pin Phoenix-type, high-impedance balanced, one per amplifier channel. Used to link an additional mixer to the mixer-amplifier. Or used to connect an external processor (see Section 2.9).

W. Line Out Connector

One 3-pin balanced Phoenix-type connector per output channel. Post master, pre-VCA. Level controlled by master volume control.

NO FUNCTION

ST

Operation Manual

Figure 1.2 Back Panel Controls and Connectors

 

(280MA shown)

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Contents 280MA 180MASome models may be exported under the name Amcron Use only with a cart, stand, tripod, bracket, or Important Safety InstructionsEuropean Representative’s Name and Address Safety StandardDeclaration of Conformity Crown International, IncTable of Contents Welcome FeaturesClip Indicator Input Volume ControlsOutput Volume Controls Output Signal Presence IndicatorAmp Config Switch Back Panel Controls and Connectors Reset SwitchAuxiliary Power Input Amplifier Outputs ConnectorsInstallation 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 How to set up Music-On-Hold output Phantom PowerLink In/Out Switches How to link another mixer to your mixer-amplifierOptional Accessories Remote Volume ControlPowering Up Included 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- WarrantyProduct purchased from *Business/Individual Country Model Serial #Crown Audio, Inc FaxThis page Intentionally Left Blank ‰ Personal/Consumer ‰ Business/Corporate Payment OptionsModel Individual or Business Name Phone # Fax #Commercial 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.