XDA SERIES
Input Signal Connections
Low Level Input (RCA)
Low level (RCA) input signal is preferred for best performance. Typical trunk-mount
amplifier installations require a 17-20 foot RCA cable. Most trucks and under-seat
applications require a 6-9 foot RCA cable. Using twisted pair construction RCA
cables will minimize noise.
Speaker Connections
Connect speaker wires
observing polarity. The
minimum impedance load
for the amplifiers is 2 ohms
stereo and 4 ohms bridged.
Use of loads lower than these
is not recommended and may
cause amplifier damage. The
amplifiers can be wired for
stereo, bridged or stereo/
bridged simultaneous
operation.
Note: Do not use both low and high level inputs
at the same time - connect only one or the other.
Amplifier Connections
Low-Level Input
(RCA)
High Level Input
(Speaker Wire)
High level inputs should only be used
when RCA outputs are not available from
the head unit. Connect the head unit
speaker outputs to the high level input
connector as shown below. The black wire
(signal reference ground) may or may not
require a connection to chassis ground -
depending on your particular installation.
Typical speaker connections shown
Speakers (bridged)
Typical Bridged Wiring
(4 ohms minimum)
2 Speakers (stereo)
Typical Stereo Wiring
(2 ohms minimum)
LT
RT
8
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