Model 975A AM/FM Distribution Amplifier

Installation Instructions

The Model 975 is a 12-volt powered AM/FM antenna amplifier designed to drive car radio antenna distribu- tion systems. It also accepts the RF output of one or more CD changers. Your Car RF system can be expanded to serve up to 32 radios using Audio Authority® KIT17s. Each KIT17 contains a 4-way tap and Motorola cables for 4 radios. If you need to distribute RF to more than 32 radios, call Audio Authority at 800-322-8346 or 859-233-4599.

Installation

Mount the Model 975A close to the radios and switching system and connect as shown in Figure 1. Place each 4-way tap within 2 to 3 feet of the radios it serves. Connect the distribution system as shown in Figure 2, tightening all F-connectors securely. Be sure to add the termination plug to the last tap in the system as shown. Caution: Prevent unused Motorola cables from contacting live conductors inside the display.

In Accessswitching systems, power the Model 975A from the AccessSystem Bus like any other Access EZmodule.

In non-AccessSystem applications, plug a length of AccessSystem Bus cable into the System Bus port. Connect the red wire to a source of 12V (+) DC and cut off the other three wires (ground is supplied through radios).

Figure 1. Model 975A Hookup Details. Use one of these indoor antenna options, or an outdoor antenna, as shown in Figure 2.

An indoor antenna will suffice for input to the Model 975A in most cases. Use either the included wire antenna or a car antenna. Plug the antenna directly into the antenna jack of the Model 975A as shown in Figure 1. If an indoor antenna produces too little FM signal or too much multipath distortion, an outdoor antenna may be desired. Use an omnidirectional FM antenna if the only problem is a weak FM signal, or use a directional FM or VHF TV antenna to improve multipath problems. Bring the 75-ohm downlead from the outdoor antenna into the building via a well-grounded lightning arrestor as shown in Figure

2.Install a Motorola plug on the cable going to the Model 975A’s antenna jack or use an F-to-Motorola adapter.

Car Antenna

Included Wire

Antenna

975A CAR AM/FM

 

AMPLIFIER

ANTENNA

CD CHANGER

INPUT

INPUT

From CD Changers

NOTE: Outdoor antennas will reduce AM performance.

RADIOS

SYSTEM

 

BUS

To Radios

Yellow wire on

 

 

this side

System Bus from any AccessModule

Page 1
Image 1
Audio Authority 975A installation instructions Installation

975A specifications

The Audio Authority 975A is a state-of-the-art audio switch designed for seamless integration into home theater systems, professional setups, and various multimedia applications. This versatile device serves as an essential component for those looking to enhance their audio experience, boasting a range of features that cater to both audiophiles and casual listeners alike.

One of the standout features of the Audio Authority 975A is its ability to support multiple audio formats. It can handle formats such as stereo, mono, and multi-channel audio, making it an ideal choice for a variety of setups. Whether you're connecting a DVD player, a gaming console, or a high-fidelity audio source, the 975A ensures that you have the flexibility needed to accommodate different input types.

The device operates with a high-quality signal integrity, ensuring that audio signals maintain their purity and clarity throughout the transmission process. The 975A employs advanced digital signal processing technologies that help to minimize distortion and preserve the original sound quality. This attention to audio fidelity is particularly important for critical listening environments, where every nuance of the audio signal matters.

In terms of connectivity, the Audio Authority 975A features multiple input and output options, including RCA and TOSLINK connections. This wide range of connectivity ensures compatibility with various audio equipment, allowing users to connect multiple sources to a single output seamlessly. Switching between sources is intuitive, with a user-friendly interface that promotes ease of use.

Another notable characteristic of the 975A is its robust build quality. Constructed with high-grade materials, the device is designed for durability and longevity, making it a smart investment for anyone serious about their audio setup. The unit's design also considers heat dissipation, ensuring that it operates efficiently without overheating, even during prolonged use.

The Audio Authority 975A is not just about performance; it's also designed with aesthetics in mind. Its sleek and modern design blends seamlessly with contemporary audio systems, providing an elegant solution that complements your home theater's visual appeal.

In summary, the Audio Authority 975A stands out as a versatile, high-performance audio switch that delivers exceptional audio quality and connectivity options. Its advanced technologies, user-friendly interface, and sturdy build make it an excellent choice for anyone looking to elevate their audio experience, whether in a home environment or a professional setting. With the 975A, users can enjoy the freedom of switching between audio sources effortlessly while maintaining the integrity of their sound.