Rockford Fosgate 2600X, 4600X, 2300 owner manual Engine Noise Whine

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Problem

Engine Noise (Whine)

Solution

1.Disconnect the speakers from the amplifier. Connect a test speaker to the amplifier output terminals. If the noise goes away, check your speaker leads, speakers and crossovers.

2.If the noise persists, use a “shorting plug” to mute the input signal at the amplifier. If the noise goes away:

a.Bypass all of the other equipment (i.e., crossovers and equalizers) and connect the head unit directly to the amp. If the noise disappears, reconnect the equipment one piece at a time, being sure to test for noise after each piece is installed. Logic indicates that the last unit installed when the noise returns is the culprit. Refer to the unit’s owner’s manual for more information.

b.If the noise persists, run a new RCA line from your head unit to the amplifier. If there is no noise, replace the RCA cable.

c.If the noise is still present after replacing the RCA cable, run the RCA cable on a different route.

d.Isolate the grounds on the head unit so that there is only one grounding point. If the noise disappears, install the radio, using only one (1) grounding point. Isolate the radio chassis from the grounding on the dash, and use an antenna ground- ing loop isolator on the antenna.

If noise persists, see your Authorized Rockford Fosgate Dealer.

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Contents Series Practice Safe Sound B L E O F C O N T E N T S Series 1 2300 Series 1 2600x Series 1 Atcatcatc Operating Features T R O D U C T I O NLED Power Indicator Low Level RCA Input ConnectorsHigh Level Speaker Input Connectors S I G N F E AT U R E SPower/Speaker Side Power/Speaker ConnectorsS TA L L AT I O N C O N S I D E R AT I O N S Tools & Supplies Needed Battery and ChargingU N T I N G L O C a T I O N S Trunk MountingR I N G T H E S E R I E S Passenger MountingPage Active Crossover Mode Selections for the 2600X Crossover Frequency SettingsWiring Diagrams 2300 2300/2600X Basic System2300/2600X 3-WAY STEREO/MONO System Amp 2600X 3-WAY BI-AMPLIFIED SystemWI R I N G DI a G R a M S 4600X FRONT/REAR Fading Full Range System4600X 3-WAY MULTI-CHANNEL STEREO/BRIDGED Mode 0 0 4600X 2 Channel Bridged LOW PassProblem TroubleshootingSolution Amplifier gets too hot Engine Noise Whine Music Dynamic Power MeasurementsAbout the Dynamic Power Measurements Listening to Loudspeakers Not ResistorsWhat is an Amplifier? Information CubedWA R R a N T Y in F O R M AT I O N T E S T E S Rockford Fosgate
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