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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Rockford Fosgate 351M manual Troubleshooting, Procedure 1 Check Amplifier for proper connections, Accessories
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351M specifications

Rockford Fosgate is a brand synonymous with premium sound performance, particularly in the realm of car audio equipment. One of their standout products is the Rockford Fosgate 351M, a powerful marine amplifier designed to deliver exceptional audio clarity and loudness in rugged environments, such as on boats and other watercraft.

The Rockford Fosgate 351M is a 3-channel amplifier that brings versatility and power to any marine audio setup. With an impressive power output of 50 watts per channel at 4 ohms, it ensures that audio enthusiasts can enjoy their music with remarkable depth and clarity, even in the noisy environment of an open water setting. This amplifier is also capable of delivering a maximum output power of up to 150 watts at 2 ohms, making it ideal for driving multiple speakers with ease.

One of the remarkable features of the 351M is its Class D topology, which promotes greater efficiency and reduces heat production compared to traditional amplifier designs. This ensures that the amplifier performs optimally without the risk of overheating, even during extended listening sessions. Additionally, its compact size allows for easy installation in limited spaces, making it a practical choice for any marine audio system.

The 351M is built with marine-grade materials, offering IPX6 water and dust protection. This means it can withstand splashes and saltwater exposure, providing peace of mind for users who wish to use it in challenging outdoor conditions. The amplifier's rugged construction ensures a long lifespan and reliable performance, even in the harshest marine environments.

Integrated features such as integrated crossover filters allow users to tailor their sound more precisely. This ensures that highs, mids, and lows can be optimized for various speaker systems, providing a truly immersive listening experience. Furthermore, the amplifier comes with RCA line outputs, enabling easy expansion and linking with additional amplifiers if required.

The Rockford Fosgate 351M is the ideal solution for marine audio enthusiasts seeking quality amplification for their sound systems. With its advanced technology, durable construction, and user-friendly features, it stands out as a top choice for those looking to enhance their boating experience with high-performance audio. Whether you're cruising on a lake or taking on the open sea, the 351M provides the power and clarity needed to enjoy your favorite tunes.
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