Question about Rockford Fosgate T20001 bd Car Audio Amplifier

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Is my alternator too small

My amp keep tripping out a high volume level 25.I own a 1990 Nissan 240SX with a T20001 amp pushing two T-2 subs and my alternator is only 80 amp. I have a 5 farad capacitor and a 100 farad dry cell battery

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If you're running the amp into a safe ohm load, it's likely that the amp is cutting out due to low voltage. You need to check the voltage with a multimeter connected directly across the terminals of the amp. If the voltage is dropping below ~10v, check the voltage across the main battery terminals. If the voltage is essentially the same at the amp and at the battery and it's dropping below ~10v, you need a larger alternator.

Posted on Sep 26, 2008

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I have a sony xplod 2/1 channel amp 800 watts. I already have 2 sony 6 by 9's hooked up to it running at 60 rms each but I wanna bridge a sub to it too. I was planning on taking a positive from one...


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My amp keeps cutting out the subwoofer... I checked all the fuses and the wires and everything checks out good do I need a capacitor?


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Is it possible to hook up 2-6x9 and 2-12in.subs to the 7540a and still pack a nice punch


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now you have 2 channels remaining,, set 3 and 4 to low pass and connect each 12" to an individual channel. (this keeps the bass and ohms high so you will get a clean bass to match with mids and high's. Dont set or bridge for a low bass as it will jam out the 6x9 and your music will sound terrible.

so there u have a simple hookup that will work and keep you sounding clean. remember not to raise the volume on the 6X9 too much as you will blow them..

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Problem


a possible explanation could be heating. the amp reaches its boiling point and cuts off. in this case, a fan may keep it from overheating. another option is a voultage problem, you may have to readjust the bias current. try measuring it if you know how). the amount of bias current depends on your output stage. something like: 20-50 mA for normal bipolar push pull probabely twice as much for darlington push pull and up to 250mA for MOS FET push pull.

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