amp shutting off.

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haemphyst

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Joined: January 19, 2003

Location: Michigan, Bouvet Island

Posted: October 24, 2006 at 3:13 PM / IP Logged

Let me help you to answer your OWN question:

Have your OEM alternator rewired. Install it. Now, what happens if the re-wired alternator fails 6 months down the road? Can you replace it with the OEM alternator, even to keep you going until the upgraded (rewired) one is repaired? Seems you'll be stuck buying a new alternator anyway...

This is the VERY reason I always recommend actually buying an upgraded alternator, rather than rewiring.

It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."

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xtremej

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Joined: February 24, 2006

Location: United States

Posted: October 24, 2006 at 3:46 PM / IP Logged

Pick your posion on either upgrading alternators or having yours rebuilt(to higher amp), its a gamble either way imo. I installed an h.o. alternator 1 month ago for a customer it died on sunday now I have a very unhappy customer, luckily they saved the stock one so I can get them back on the road. So what I am saying is either way it can crap out whether its new or rebuilt. This is the only new ho alt I have had go bad so far amp shutting off. - Page 2 -- posted image.

amp shutting off. - Page 2 -- posted image.

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master5

Silver - Posts: 1,123

Joined: October 10, 2006

Location: United States

Posted: October 24, 2006 at 9:46 PM / IP Logged

Let me know the total RMS power of all your amplifiers @ 2ohms. In addition, let me know the output rating (in amps) of your stock alternator.

I believe from what you stated you have one bridged @4ohm to 2 subs. The other is a single 4 ohm load bridged to an identical amp. So both amps are operating at 2ohms.

Regardless, this does not seem to me to be enough power to be dropping the voltage at the cap/amp to 9v due to the stock alternators rating, unless of course there is a problem with the alternator.

Do the tests I reccomended with the DMM. This is not to say you shouldn't upgrade your alternator anyhow. In reality the problem you are having will not go away by upgrading the alternator if the votlage drop issue is elsewhere in the system.

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master5

Silver - Posts: 1,123

Joined: October 10, 2006

Location: United States

Posted: October 24, 2006 at 9:56 PM / IP Logged

One more thing.

Are these "501's" mono amplifiers? If so, they are only seeing the 4 ohm load. If this is the case those amps are using only half of thier RMS rated output.

Keep that in mind before spending money you don't need too ---

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amp shutting off.

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