coaxial cable by increasing the cable compensation setting by one click for each 200 feet of coaxial cable length (see diagram below). For example, if the coaxial cable length from main system to Driver is 220 feet (1 click) and the Cat 5 cable length to a certain wallplate is 250 feet (2 clicks), the correct Cable Length Compensation for that wallplate is 1 + 2 = 3 clicks. Conditions vary, so it is best to verify settings using the video display that

Cable Length

Compensation = 4

9878

Wallplate

RCA Cable Length = 220 ft.

9871

 

 

Driver

AV Source Component

A B

 

18-volt power supply PN 571-014

Cable Length

Compensation = 3

9878

Wallplate

Cat 5 Cable Length = 370 ft.

Cat 5 Cable Length = 250 ft.

will be installed in each location.

A pass-through F-connector is provided in case antenna connection is desired. (A separate coaxial cable must be pulled; antenna signals are not carried on the Cat 5 cable).

Connecting to an IR network

The DuoDrive does not have an IR remote control system; it provides a discrete three-strand Cat 5 pathway for a third party system. Connect an IR remote control system input to the Driver IR output stereo 3.5mm jack (see example diagram below). Connect an IR receiver to each wallplate/receiver and position them appropriately in the rooms. Do not connect any equipment to the vacant white RCA jacks marked “IR”.

18-volt power supply PN 571-014

AV Equipment

IR Remote

Control

System

AV Equipment

A B

 

 

Note: IR remote control

 

 

system and receivers are

9871

Note: This

not included.

 

 

 

Driver

 

 

configuration of two

IR Receiver

 

 

 

 

9871 Drivers could

 

 

 

 

 

support four

 

 

 

wallplates.

 

 

A B

 

 

 

 

 

9878

IR

 

Wallplate

Remote

Cat 5, Cat 5e,

 

 

or Cat 6 Cable

 

 

2048 Mercer Road, Lexington, Kentucky 40511-1071 Phone: 859-233-4599 • Fax: 859-233-4510 Customer Toll-Free USA & Canada: 800-322-8346 Website: http://www.audioauthority.com

In Case of Difficulty

If any problems arise that are not covered in this manual, call Audio Authority Technical Support at 800-322-8346, or outside the US and Canada, call 859-233-4599.

752-480 11/08

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Audio Authority 9870, 9871, 9878 manual Connecting to an IR network, Case of Difficulty

9878, 9870, 9871 specifications

The Audio Authority series of products, namely the 9871, 9870, and 9878, are distinguished components in the realm of audio distribution and switching. Designed for both home and professional use, these models offer a plethora of features aimed at enhancing the user audio experience.

The Audio Authority 9871 is primarily known for its 8x1 HDMI switcher functionality, allowing users to connect and manage multiple HDMI sources seamlessly. This model is notable for its automatic switching capability, meaning it can detect when a source is activated, switching users effortlessly to the correct input. Coupled with support for 4K resolution, this ensures that high-definition content is transmitted without compromising on quality. Additionally, it features built-in EDID management, which allows seamless communication between source devices and displays, ensuring compatibility and optimal resolution settings.

The Audio Authority 9870, on the other hand, is a robust video distribution amplifier designed to deliver HDMI signals to multiple outputs. It boasts a 1x8 configuration for HDMI distribution, making it an ideal choice for scenarios where a single source needs to deliver video to eight different displays. Its support for multichannel audio and 3D video formats makes it versatile for a variety of applications, including commercial installations and home theaters. Like the 9871, the 9870 also features advanced EDID management and is capable of transmitting signals over longer distances without loss in quality.

Lastly, the Audio Authority 9878 stands out as a professional-grade audio and video matrix switcher. With its ability to route multiple audio and video signals from various sources to multiple outputs, it is ideal for larger systems requiring extensive connectivity options. The 9878 supports both HDBaseT technology and PoE (Power over Ethernet), allowing for a single cable solution to transmit video, audio, and control signals up to 100 meters away. This capability greatly simplifies installations while reducing cable clutter.

All three models exemplify Audio Authority's commitment to quality and reliability in audio and video management. Their robust build quality, ease of integration, and versatile features position them as leading choices for installers and audio enthusiasts alike, setting a high standard in the audio distribution market. Whether for home theaters, commercial applications, or professional environments, the 9871, 9870, and 9878 continue to deliver exceptional performance and value.