Commercial Audio Series Mixer-Amplifiers

2Setup

2.4Wire Your System

Typical input and output wiring is shown in Figure 2.9.

INPUTS: For Input 1, connect a microphone or balanced line-level signal to the Input 1 balanced input. Set the Mic/Line switch (DIP switch #1) accordingly. For the other inputs, connect unbalanced line-level signals to the RCA input connectors.

OUTPUTS: Maintain proper polarity (+/–) on amplifier output connectors.

Speakers with 70V transformers

 

 

CD player

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Connect the Amplifier Output screw terminals to the loudspeaker loads. Use terminals marked COM and 70V or 100V for constant- voltage loudspeaker loads. Use terminals marked COM and 8 ohms for an 8-ohm speaker.

Connect the COM terminal to speaker negative (–) lead; connect one of the other terminals to speaker positive (+) lead.

Cover the output connections with the supplied clear non-touch cover by sliding the cover on.

2.6 Phantom Power

Condenser mics require phantom power to operate. If you are using a condenser microphone on Input 1, turn on DIP switch #8 on the back of the mixer-amp. The microphone must be able to work on 15V phantom power, which the mixer-amp’s mic input

connector provides.8-Ohm

Speaker

 

 

1

- CH1 MicOn/LineOff

5

- CH1 to MOH

100V

2

- CH1 Normal

6

- CH2 to MOH

3

- CH1 Priority

7

- CH3 to MOH

 

 

4

- CH1 VOX

8

- Phantom

70V

 

 

 

 

 

 

 

 

 

 

PREAMP

 

TELEPHONE

 

 

8

OUTPUT

 

 

(MOH)

 

 

 

 

 

 

 

 

 

 

COM

 

8

 

600

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Input 4

Input 3

Satellite Receiver

Input 2

Input 1

PRIORITY

+

 

 

 

 

 

5-terminal removable

 

 

 

 

 

barrier block (Phoenix-type)

+

 

 

 

 

 

To mic

Paging mic

To switch in mic.

Switch mutes other channels.

Figure 2.9 Input-Output Wiring

Operation Manual

page 11

Page 11
Image 11
Crown Audio 160MA operation manual Wire Your System, Typical input and output wiring is shown in Figure, Phantom Power

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.