Question about Rockford Fosgate Power T3002 Car Audio Amplifier

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I have a t3002 going to a L7 12" sub. it played for bout 5 minutes down my road then no sound. the protect light is on. Y?

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It could possibly be a bad ground. I ran in to the same problem the other day, but I wasn't driving. Started my car and everything seemed to work ok then all of sudden nothing. I checked all the voltages when the car is turned on, remote turn on (should have more than 11v), power cable to chassis ground (12+ V), they were all there. Then I finally checked the ground just moving the connection turned it on and then off. This occured repeatedly, then I disconnected the ground and then reconnected, now amp is running like a champ.

Posted on Oct 03, 2010

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2 Answers

My sound plays for a while and then the amp goes into protection


Try a different set of speakers or if it keeps going into protection you have a channel going bad.

Jan 14, 2014 | Audio Players & Recorders

1 Answer

Well i was driving one day and my subs just whent out so i bought brand new wires and hooked everything up but the power protector light turns red whenever uu turn it up past volume 10 i really do not know...


It sounds like your amp is going into protection. I know it's frustrating, but this is actually a good thing. If you subs you have are drawing too much power and the amp can't keep up, it will shut off instead of melting the board. Usually, the protection mode only last a few seconds. The user normally turns the music down that the protection shuts off and the music plays again. I recommend looking at a larger amp for your subs, if you are going to play them that hard.

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make sure your amp can hold either .5 ohms , 2 ohms or 8 ohms...... by my guess your amp is either 2 ohm stable or 4 ohm stable and you have them wired down to .5 ohm.....this will cause it to overheat and kill your amp. check out the12volt.com it will give you wiring guides for hooking up subs.

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If it is not turning on your problem is it is not getting power. Check your fuses. The reason an amp goes into protect mode is usually because the subs are not wired up right. Make sure your fuses are good, you have a good ground, and make sure your amp turn on wire didn't come loose when you were putting the deck back in. As for the amp going into protect you probably wired the subs down to too few ohms and the amp you have can't handle it. Try hooking the subs up straight w/o bridgeing them and turn it up to see if it works. If you don't have problems with it then you wired your subs wrong.

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maybe u had ur crossover set to full on the amp. Check it bcause, if you have to many high frequencies sent to any subs at a high level u can seize them in minits.

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Check the fuse on the amplifier; if it's good, then you need a multimeter or voltmeter for further testing. With the meter's black probe on your amp's ground terminal and the radio turned on, both the power and the remote terminals should test at about 12 volts. If neither terminal shows voltage, you may have a problem with your ground connection; if both do, there's a problem with the amp.

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