Crown Audio 160MA Back Panel Controls, Connectors and Indicators, Telephone MOH Output Connector

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Commercial Audio Series Mixer-Amplifiers

2 Setup

1.3Back Panel Controls, Connectors and Indicators

A. AC Power Inlet: Detachable IEC accepts

US or Euro style power cords.

B.Amplifier Output Connector: 4-position terminal barrier block with COM (Common), 8 ohms, 70V and 100V terminals. Accepts up to 10 AWG terminal forks. Clear non- touch cover included.

C.Amp Configuration DIP Switch: DIP switch selection for multiple functions.

1.On: Sets CH1 to Mic Input. Off: Sets CH1 to Line Input.

2.On: Sets CH1 to Normal mode (no prior- ity).

3.On: CH1 priority contact closure mutes other channels.

4.On: CH1 VOX mutes other channels by sensing signal through Input 1.

5.On: Routes CH1 to MOH output.

6.On: Routes CH2 to MOH output.

7.On: Routes CH3 to MOH output.

8.On: 15V phantom power.

D:Input Connectors 2-4 (160MA) or 2-3 (135MA)

Unbalanced line-level RCA-type connectors, summed to mono.

E.Preamp Line Out Connector: 3-pin bal- anced Phoenix-type for connection to exter- nal amplifiers. Level independent of master volume control.

F. MOH Level Control: Trim pot adjusts level for Music-On-Hold output from Telephone (MOH) Output Connector.

G. Telephone (MOH) Output Connector:

4-terminal Phoenix connector (2 terminals for 1W output to 8-ohm speaker, 2 terminals for 600-ohm output to PBX music-on-hold port).

H. VOX Threshold: Trim pot controls how loud the voice on CH1 must be before muting other channels. Can be set for no muting.

I.Input Connector 1: 5-terminal Phoenix connector. 3 terminals for balanced signal, 2 terminals for priority contact closure, which mutes other channels when DIP switch 3 is on.

A BCD

E

F G

H

I

Figure 1.2 Back Panel Controls, Connectors and Indicators

 

Operation Manual

 

 

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Contents Some models may be exported under the name Amcron Commercial Audio SeriesWichtige Sicherheitsinstruktionen Important Safety InstructionsModel Names 135MA, 160MA EMC Standards Safety StandardCrown International, Inc European Representative’s Name and AddressTable of Contents Welcome FeaturesPower Switch Pushbutton on-off switch SetupPower Indicator Blue LED indicates Power onTelephone MOH Output Connector Back Panel Controls, Connectors and IndicatorsInput Connectors 2-4 160MA or 2-3 135MA Unbalanced line-level RCA-type connectors, summed to monoRepeat steps 3-6 for the left side of the chassis How to Attach the Unit to a RackInstallation Place a rack ear flush with the right front of the chassisNoise over long cable runs Choose Input Wire and ConnectorsDistance Choose Output Wire and ConnectorsMusic-On-Hold Connections Connector provides.8-Ohm Wire Your SystemTypical input and output wiring is shown in Figure Phantom PowerOperation Condition Distorted sound TroubleshootingCondition No power to the mixer-amplifier No input signal Input signal level is very lowOutput % at rated power at 1 kHz % at 5W at 1 kHzSpecifications KHz with 0.5% THDService United States & Canada WarrantyWorldwide Except USA & Canada This page intentionally left blank Fax Crown Audio, IncThis page intentionally left blank Credit card information Crown Audio Factory Service InformationThis page intentionally left blank This page intentionally left blank
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160MA specifications

Crown Audio, a leading manufacturer of professional audio equipment, has made a name for itself with its innovative amplifier designs. Among their extensive lineup, the Crown 160MA and 135MA models stand out as highly regarded solutions for various applications, particularly in commercial audio systems, installations, and even mobile setups.

The Crown 160MA is a 160-watt, 2-channel amplifier that delivers robust performance while ensuring outstanding sound quality. Designed with versatility in mind, it is well-suited for powering speakers in both small venues and larger installations where high-quality audio is required. The amplifier features a built-in mixer with three inputs, allowing users to easily connect multiple audio sources. This feature is particularly beneficial in settings such as community centers, conference rooms, and educational institutions.

On the other hand, the Crown 135MA is a slightly smaller yet equally capable 135-watt, 2-channel amplifier, designed for applications where space may be limited. It retains many of the key features found in the 160MA, offering reliable performance while providing the necessary power for smaller speaker systems. The integrated mixer also accommodates various audio inputs, simplifying connections in various environments.

Both models incorporate advanced technologies that enhance performance and reliability. They utilize Class D amplification, which not only reduces energy consumption but also minimizes heat generation, allowing for a more compact design without sacrificing output power. This makes them ideal for permanent installations where space is a constraint. Additionally, the amplifiers come equipped with comprehensive protection circuitry, safeguarding against potential overloads and thermal issues.

The Crown 160MA and 135MA are also designed with user-friendly controls and indicators, making them accessible for both seasoned audio professionals and newcomers. Their rugged built quality ensures durability in diverse environments, whether being used in commercial spaces, houses of worship, or temporary events.

In summary, the Crown Audio 160MA and 135MA offer a compelling combination of power, sound quality, and versatility. Their innovative features, such as built-in mixing capabilities, efficient Class D technology, and robust protective measures, make them excellent choices for anyone seeking reliable amplification solutions. Whether for small to medium-sized installations or mobile setups, these amplifiers are engineered to deliver exceptional audio performance for any application.
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