Audio Authority Car Audio System installation manual Install Speaker Bus, Low-Level Buses

GREEN WIRE

ALWAYS ON

THIS SIDE OF PLUG

6.Dual header connections are provided on all modules so you can easily extend a bus cable that is too short, or you can branch off the main run to a remote or side group of modules, if necessary.

Note: Since bus connectors can be both in and out, one header connection may be left open. The remaining connector may be used to create a branch from the bus.

B. Install Speaker Bus.

The procedure for running the Speaker Bus is very similar to the installation of the System Bus. The speaker bus will be used to send high-level signals from amp outputs to speaker modules in the system. (For very small systems with no amps, the head unit group is connected directly to speaker

groups via speaker bus.)

		SPEAKER
•	Connect related modules with a continuous run of bus cable.	BUS
•	Start from the module at one end of the group and work toward the
	other end.

• Run separate buses for front, rear and sub (or tweeter, mid, and sub).

1. Using the a green/white/brown/gray bus cable assembly, plug a connector of the bus into a SPEAKER BUS header on each 942 module in the Front Ampli- fier group. The connectors are polarized, so they will only connect in one

direction, but always make sure to prevent the possibility of plugging the system bus to the header backwards (see Figure 24).

GRAY

BROWN WHITE

GREEN

2. Using the same bus cable or branching off with a new section of bus cable, continue	Figure 24.
connecting all 932 modules in the Front Speaker group to the Front Speaker Bus.

3.Connect all remaining Amplifier/Speaker Product Groups in the same way.

4.Extend system or speaker buses, if necessary, using the available extension cable assemblies.

C. Low-Level Buses.

The rules are similar to those for installation of the other signal buses:

•Connect modules within a group and to corresponding groups.

•Start from the module at one end of the product group and work toward the module at the other end.

•Low-level cables are quite different from other bus cables. Use only high-quality shielded RCA patch cords, preferably gold-plated, for low-level bus connections. Use Audio Authority® Excellerator Cable and Solderless Gold RCA Connectors for made-to-measure cables of exact length, especially for those runs over 6 feet.

Figure 25. Speaker Bus Example.	Left Front Speaker Group
	932	932

Front Speaker Bus

Left Rear Speaker Group

932 932

Front Amplifier Group		Right Front Speaker Group
942	942	932	932

Rear Amplifier Group		Right Rear Speaker Group
942	942	932	932

Rear Speaker Bus

21