Planning Your Power Connections - zapco Z-150.4 II Owner's Manual

The power end plates of the Zapco Z-series amplifiers carry the power connections
and the Speaker connections and vary somewhat by the number of channels.
For example, the power end of the Z-150.6 II has (of course) Speaker connections
for six channels. One model, the Z-150.2 II has on-board fuses, while all other
models will require and in-line fuse. Please follow the rating guidelines as in the
Specifications page at the end of this manual.
That said, the main 12-volt power input, the 12-volt turn-on wire, and the main
Ground connections are common to all models.
• The connection at the interior of the end plate is the main power input.
This must be connected the vehicle battery's positive (+) terminal, and a
main system fuse should be placed close to the battery
• The connection at the outside of the end plate is the main ground or negative
connection. This must be securely attached to bare metal at the vehicle frame,
or other heavy chassis component with a direct connection to the frame
Note: Seat bolts and seat belt bolts are NOT good ground points
• The small terminal between the main power and ground is the +12 turn-on
input and can be connected to the head unit turn-on output wire. If none
is available it can be connected to an accessory (ACC) terminal. You should
avoid using any ignition-on (IGN) wire, as they can be noisy
Note: The Z-Series amplifiers have terminals that do not require connectors. You simply insert
a bare portion of wire and tighten the connection with the supplied Hex tool. As the wire
conforms to the connector the connection can loosen. You should re-tighten the connection
after about a week.
6

Planning your power connections

+12 volt at Battery positive terminal
Turn-on trigger wire
Ground to chassis