Question about Rockford Fosgate P3001 Car Audio Amplifier
No power no light no sound how to fixit by myselfe
Posted by Anonymous on
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Posted on Jan 02, 2017
Watts delivered is a function of the voltage times the current. If the amp was 100 percent efficient, it would need 33 amps at 12V for 400 watts. At 14.4V, it would only need 28 amps. Of course, amplifiers are NOT 100 percent efficient, only about 50-60 percent in many cases, but somewhat higher for monoblocks, maybe 80-90 percent. So you're looking at a fuse in the 60-80A range. In the absense of a specific fuse size from the manufacturer, I'd start the primary fuse at a 60A and if the amp blows it on power up/immediately/frequently, move up to an 80A.
All of the Rockford-Fosgate 2-channel bridgeables I've ever seen show using the left positive (+) and the right negative (-) for bridging. But if it's not shown right on the amp, I'd call or email RF for the correct connection. The new amps do show it.
Hope this helps.
Posted on Apr 28, 2009
Is this powering speakers or subwoofer? If it's the subwoofer you need to make sure the gain is turned up and the sub is set to low pass frequency. Also make sure bass and subwoofer are enabled on the head deck. Make sure the RCA's are hooked up properly at the back of the head deck. If it's the speakers then you may have balance set to front only so your rear speakers aren't making noise.
Posted on Aug 05, 2009
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