Question about Rockford Fosgate Punch P5002 Car Audio Amplifier

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MY AMPLIFIER I HAVE THE P5002 AMPLIFIER AND IT POWERS UP BUT WHEN I HOOK UP MY 12 INCH SUBWOOFERS THERE IS NO SOUND COMING OUT. COULD IT BE THAT I HAVE A BLOWN TRANSITIOR IN MY TERMINALS. ALL I KNOW IS THAT THEY USED TO WORK AND NOW THEY DONT. IF I HAVE A BLOWN TRANSITIOR IS THERE ANYWAY I CAN FIX THAT MYSELF. EVERYTHING IS WIRED NEW IN MY CAR. OH AND WHAT IS THE BEST WAY TO GROUND AN AMPLIFIER.

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HI SOUFBOY , Theres a few things you need to check , First make sure that your amplifier is getting an audio signal form your head unit,Check all the wires for breaks in the amplifier input, secondly make sure that your 12 inch woofers are still connected to the amp check all the wires . Thirdly check your woofers are they blown ? . The best way of grounding your amp is by scrapping all the paint on a spot on the car body inside the trunk or wherever you have it and making sure the ground wire is securely screwed onto the car body on that spot ..

Posted on Mar 23, 2007

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Posted on Jan 02, 2017

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You dont specify the model or RMS power of the subwoofers so i am not sure if that power is RMS or maximum.
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Your amp is rated at 500 watts. Here is the break down of your wattage.

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1 Answer

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This amplifier cannot handle a load lower than 4 Ohms in stereo or bridged mode.

If the subs are Dual 2 ohm - You cannot wire a 4 ohm load with (2) subwoofers.

Only 8, 2, or 1/2 ohm loads are possible with (2) dual 2ohm voicecoils

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Hi unbridge the subs and run them sterio your overloading the amp and its going into protection mode. if you have anymore questions about car audio feel free to ask me...

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1 Answer

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Hello rbenwalker,

The voltage drop may not be in the actual power wire itself. The same reading on both the B+ and remote terminal probably points to a bad or high resistance ground. Try a different ground point or make sure there isn't any corrosion, paint or anything else preventing metal to metal contact.

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7 volts will not be sufficient for the amp either for power or remote. Also check to make sure you speakers wires are not crossed. If its goin it to protect mode immediately the amp is detecting a fault and is not turning on.

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Check my previous answer. Everything still applies.

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1 Answer

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Negative on both subwoofers to - on amplifier.
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Thank you for using FixYa - a FixYa rating is appreciated for taking the time to answer your FREE question.

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