Dual XPR Amplifier Connections, Speaker Connections, Input Signal Connections Low Level Input RCA

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Amplifier Connections

Speaker Connections

Connect speaker wires observing polarity. The minimum impedance load for the XPR522 or XPR540

is 2 ohms stereo and 4 ohms bridged. Use of loads lower than these is not recommended and may cause amplifier damage. The XPR522 and XPR540 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)

XPR522 speaker connections shown

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.

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 (+)

HI-LEVEL INPUT CONNECTION

Do not use both low and high level inputs at the same time - connect only one or the other.

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Contents XPR Series Mobile Power AmplifiersBefore You Start PreparationMounting Location Connection Descriptions XPR522 Audio Inputs and ControlsXPR540 Power and Speaker Connections Fuse Rating Typical Wire RoutingMain Power Connections Power/Ground Wire SizeSpeaker Connections Input Signal Connections Low Level Input RCAHigh Level Input Speaker Wire Amplifier ConnectionsInput level Control Configuration/SetupCrossover Mode Bass Boost LED IndicatorWhat to do? Limited One-Year WarrantySpecifications Problem Cause Action TroubleshootingDual Electronics Corp Toll Free

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