Audio Authority 9850 How To Use

How To Use Model 9850/9851 Universal Distribution Amplifiers
Model 9850 and Model 9851 provide a simple solution to
the problem of distributing video and audio signals among
multiple video displays or monitors over long distances. To
overcome the bandwidth-robbing losses of coaxial cables,
the 9850/9851 have cable-length compensation that can be
adjusted for up to 500 feet of cable. The 9850 amplifier's
7-channel-wide architecture enables simultaneous distribution
of digital audio, analog audio, composite video and component
video. Model 9851 is similar to the 9850, with the addition
of two more analog audio channels.
Multiple 9850s can be bussed together to create large distribution systems using RCA plugs (Model 9850 and
9851) or F connectors (Model 9850F and 9851F) on the bus cables.
Note: Model 9850 is pictured throughout the manual, but all information applies to Model 9851 as well.

Single Amplifier Installation (Four or Fewer Video Displays)

Mount the 9850 near the video displays and audio system. Use high-quality 75-ohm coaxial cable, such as Audio
Authority part numbers 871-070 (standard DTV cable) or 871-074 (plenum-rated DTV cable) to route signals
from the audio/video source to the Bus Input jacks of the amplifier. No terminations are required on the Bus
Output connectors. Connect each set of main outputs to a video display and/or audio system using good quality
coaxial cable for video and digital audio, and standard patch cords for analog audio.
Adjust the Cable Length Compensation control equal to the length of the cable run from the source to the
amplifier. This control is calibrated in feet and meters (m). For example, if the length of the cable is 150 feet,
set the pointer midway between the 100 and 200 foot marks. This setting restores the bandwidth lost in 150 feet
of cable. Note: the bus output is not cable-length compensated and therefore is not recommended as a product
output.
Power the 9850 from the supplied power pack. In the event of hum bars or other picture disturbance, adjust the
Ground switch to minimize the symptom.
Component
Video Source
Left/Right
Audio
Digital
Audio
Composite Video
Component Video
9850
Digital Receiver
(and Speakers)
(One of Four
on this Amp)
9850
Model 9850 Manual 752-440B 8/03
9851
Left/Right
Left/Right
HDTV
Audio
Audio
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