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7
XPA SERIES INSTALLATION
Amplifier Connections
Speaker Connections
Connect speaker wires observing
polarity. The minimum impedance
load for the XPA2100 and XPA4100
is 2 ohms stereo and 4 ohms
bridged. The minimum impedance
load for the XPA6100 is 2 ohms.
Use of loads lower than these is
not recommended and may cause
amplifier damage.The XPA2100
and XPA4100 can be wired for
stereo, bridged or stereo/bridged
simultaneous operation.
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.
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.
Subwoofer (mono)
Typical Bridged Wiring
(4 ohms minimum)
2 Speakers (stereo)
Typical Stereo Wiring
(2 ohms minimum)
CAUTION
Do not use both low and high level inputs at the same time - connect only one or the other.
XPA2100 speaker connections shown