Audio Authority Access EZ 922, System Installation Manual

Page: 13 / 52

13
Put the System Together
The only other essential module is the “System Module.” It controls certain functions of the Access System, such as
SilenTouch
™
(a muting interval) and provides a place to connect a control panel and power supply. A 980 System Module
is shown installed in the signal path between the Source Group and the Receiver Group. By connecting the modules with
bus cables (explained in the definition of terms section) you now have a working switching system.
Add More Products
Simply add enough modules to accommodate the number of additional products you plan to demonstrate.
Instead of four A-V Sources, the example in Figure 21 can demonstrate eight Sources. If you plan to use a 903
Control Panel or PSBs, you can demonstrate up to 99 products in each of eight Product Groups.
Subwoofer Switching Options
Powered subs can be wired low-level in systems where all receivers have a low-level “Sub Out” jack, or they
can be wired high-level, tapping into the full range signal for the front speakers. Call Audio Authority
®
for more
information on wiring high-level subwoofers. Low-level mono or stereo subwoofers can be switched using the
922 module. For mono subwoofers, use only one channel or use a Y-adapter cable (shown below) to provide
signal to both channels, reducing hookup errors.
Add a Control Panel
This system would have Product Select Buttons by each product, but with the addition of a control panel,
products could be selected on it directly. The control panel would be connected to the 980 System Control
Module as shown in the section called “Adding Control Interfaces” on page 14.
945
955 932
932
980
932
932 932
System Bus
Low-Level
High-Level
Composite Video
Digital Audio
4 A-V
Sources
4 Surround
Sound Receivers
System
Module
8 Left/8 Right
Surround
Speakers
8 Left/8 Righ t
Front Speakers
8 Center
Speakers
Video Monitor
945
922
955 932
932
980
932
932
932
955
System Bus
Low-Level
High-Level
Composite Video
Digital Audio
8 A-V
Sources
4 ProLogic™
Receivers
System
Module
8 Left/8 Right
Surroun
d
Speakers
8 Left/8 Righ t
Front Speakers
8 Center
Speakers
4 Powered
Subwoofers
Video Monitor
Figure 20.
Small home theater switching system with Product
Select Buttons by each product. Video on-screen programming is
always available when a capable receiver is selected.
Figure 21. Expanded
home theater switching
system capable of
demonstrating eight
sources, and four powered
subwoofers. The analog
audio bus is also installed,
enabling sources not
capable of multi-channel
surround sound.