Amplifier Connections
Speaker Connections
Connect speaker wires observing polarity. The minimum impedance load for the XPR520 is 2 ohms stereo and 4 ohms bridged. Use of loads lower than these is not recommended and may cause amplifier damage. The XPR520 can be wired for stereo, bridged or stereo/bridged simultaneous operation.
2 Speakers (stereo)
Typical Stereo Wiring |
(2 ohms minimum) |
Subwoofer (mono)
Typical Bridged Wiring |
(4 ohms minimum) |
Input Signal Connections
Low Level Input (RCA)
Low level (RCA) input signal is preferred for best performance. Typical
CAUTION
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.
Grey = Right (+)
Grey/Black = Right
Black = Ground
White/Black = Left
White = Left (+)
Do not use both low and high level inputs at the same time - connect only one or the other.
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