Dual XPR520 Configuration/Setup, Input level Control Crossover Mode, Bass Boost LED Indicator

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Configuration/Setup

Input level Control

Crossover Mode

Crossover Frequency Control

Bass Boost

LED Indicator

The input level control (gain) is used to obtain the best possible match between the head unit audio output and the amplifier input.

Begin by turning the input level control fully counterclockwise.

Next, turn up the head unit volume control around 3/4 of the way up.

Adjust the input level control clockwise until audible distortion is heard, then slightly counterclockwise to provide the best match.

Repeat for all input level controls.

The crossover is used to filter out frequencies above or below a certain point. Choose LPF when using the amplifier with subwoofers, HPF when using with midrange/tweeter combinations and OFF when using with coaxial-type speakers.

Note: Choose OFF when using the amplifier in stereo/ bridged simultaneous mode. In this mode, passive crossovers are required. Failure to use the correct passive components may damage the amplifier and/or speakers. Consult a qualified professional for recommendations.

This control allows precise adjustment of the crossover frequency.

This control provides additional boost @ 45Hz when used with subwoofers. Adjust this control with caution - as improper use can damage speakers!

The LED indicator illuminates blue during normal operation (POWER) and red when the amplifier detects a fault (PROTECT).

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Contents XPR520 Mobile Power AmplifierBefore You Start PreparationMounting Location Connection Descriptions Audio Inputs and Controls Power and Speaker ConnectionsFuse 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 Crossover Mode Configuration/SetupBass Boost LED Indicator Troubleshooting SpecificationsWhat to do? Limited One-Year WarrantyPage Page Dual Electronics Corp Toll Free