Rockford Fosgate 550X, 750X Troubleshooting, Procedure 1 Check Amplifier for proper connections

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TROUBLESHOOTING

NOTE: If you are having problems after installation follow the Troubleshooting procedures below.

Procedure 1: Check Amplifier for proper connections.

Verify that POWER light is on. If POWER light is on skip to Step 2, if not continue.

1.Check in-line fuse on battery positive cable. Replace if necessary.

2.Verify that Ground connection is connected to clean metal of the vehicle’s chassis. Repair/replace if necessary.

3.Verify there is 10.5 - 15.5 Volts of current present at the positive battery and remote turn-on cable. Verify quality connections for both cables at amplifier, stereo, and battery/fuseholder. Repair/replace if necessary.

Procedure 2: Check Amplifier for audio output.

1.Verify good RCA/high-level input connections at stereo and amplifier. Check entire length of cables for kinks, splices, etc. Test RCA/high-level inputs for AC current with stereo on. Repair/replace if necessary.

2.Disconnect RCA/high-level input from amplifier. Connect RCA/high-level input from test stereo directly to amplifier input.

Procedure 3: Check Amplifier if you experience Turn-on Pop.

1.Disconnect input signal to amplifier and turn amplifier on and off.

2.If the noise is eliminated, connect the REM lead of amplifier to source unit with a delay turn-on module.

OR

1.Use a different 12 Volt source for REM lead of amplifier (i.e. battery direct).

2.If the noise is eliminated, use a relay to isolate the amplifier from noisy turn-on output.

Procedure 4: Check Amplifier if you experience excess Engine Noise.

1. Route all signal carrying wires (RCA, Speaker cables) away from power and ground wires.

OR

2.Bypass any and all electrical components between the stereo and the amplifier(s). Connect stereo directly to input of amplifier. If noise goes away the unit being bypassed is the cause of the noise.

OR

3.Remove existing ground wires for all electrical components. Reground wires to different locations. Verify that grounding location is clean, shiny metal free of paint, rust etc.

OR

4.Add secondary ground cable from negative battery terminal to the chassis metal or engine block of vehicle.

OR

5.Have alternator and battery load tested by your mechanic. Verify good working order of vehicle electrical system including distributor, spark plugs, spark plug wires, voltage regulator etc.

ACCESSORIES

Connecting PUNCH Capacitors

Maintain the power you need to your Power Amplifier.

Connecting Links

Mount your Power Amplifiers together for space reduction and a smooth look.

See our website for other accessories to help you get the most out of your system.

www.rockfordfosgate.com

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Contents Channel Amplifiers Introduction Table of ContentsContents of Carton Safety InstructionsDesign Features Engine Compartment Installation Installation ConsiderationsMounting Locations Trunk Mounting InstallationBattery and Charging Wiring the SystemPower Connection RCA Inputs connect to Front Signal Imput Switch set to Channel WiringSpeaker Impedance Installation Using Passive CrossoversMounting and installation Remote Punch BassAdjusting Crossover Frequency Operation Adjusting GainProcedure 3 Check Amplifier if you experience Turn-on Pop TroubleshootingProcedure 1 Check Amplifier for proper connections Procedure 2 Check Amplifier for audio outputMODEL- Power SpecificationsLimited Warranty Information What is CoveredRockford Fosgate

550X, 750X specifications

Rockford Fosgate has long been a leader in the audio industry, renowned for its innovative designs and high-quality sound products. The Rockford Fosgate 750X and 550X amplifiers are prime examples of this legacy, delivering superior performance for car audio enthusiasts.

The Rockford Fosgate 750X amplifier is particularly noted for its impressive power output, delivering up to 750 watts of peak power. This makes it ideal for powering larger subwoofers or multiple speaker setups, ensuring that users experience robust bass and clear sound in any vehicle. The amplifier features adjustable gain control, allowing users to fine-tune their system for optimal performance. Additionally, the 750X boasts a built-in variable low-pass crossover, which helps to channel the appropriate frequencies to the subwoofers, enhancing overall sound quality while minimizing distortion.

On the other hand, the Rockford Fosgate 550X amplifier offers a slightly lower power output of 550 watts. This amplifier is perfect for users who require ample power without the need for an overwhelming system. The 550X also includes adjustable gain control and a variable low-pass crossover, allowing for customization to suit individual preferences and vehicle acoustics. Both models are designed with an emphasis on ease of installation, featuring a compact design and high-quality connectors.

One of the standout technologies found in both the 750X and 550X amplifiers is the Class-D amplifier design. This technology not only improves power efficiency but also reduces heat production, making these amplifiers sustainable for long-duration use. Additionally, Rockford Fosgate incorporates their unique Power Line output, which provides reliable signal transmission without significant loss in quality.

Both amplifiers also come equipped with a robust thermal management system to prevent overheating during intense playback. Additionally, built-in circuit protection features ensure that the amplifiers remain safe during operation, offering peace of mind to users.

In summary, the Rockford Fosgate 750X and 550X amplifiers are excellent choices for car audio enthusiasts looking to enhance their sound experience. With impressive power outputs, adjustable controls, and advanced technologies, these amplifiers stand out in the competitive audio market, providing the performance and reliability that Rockford Fosgate is known for. Whether you’re a casual listener or an audio aficionado, these amplifiers are sure to satisfy your sound cravings.
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