fosgate system
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=7494
Printed Date: May 16, 2025 at 12:31 PM
Topic: fosgate system
Posted By: navion20is
Subject: fosgate system
Date Posted: January 01, 2003 at 5:08 PM
I have a fosgate 500a2 amp with 2 fosgate dvc woofers rated at 800w peak what is the best way to wire these and how big should a sealed enclosure be ------------- ?
Replies:
Posted By: thumpsalot
Date Posted: January 01, 2003 at 5:48 PM
enclosure: probably 1.5 cu.ft. sealed per sub. keep it chambered.
bridge the amp so it runs at 4 ohms mono, but be sure of the impedence of the woofers so as to prevent your amp from blowing.
best bet, take it to best buy. $70 for an amp install and they do it right cuz they are MECP certified.
thumpsalot.
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-B
you dont have to be a radical to be a revolutionary.
Posted By: navion20is
Date Posted: January 01, 2003 at 9:27 PM
how do u kno when an amp is blown
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?
Posted By: SOUND PRESSURE
Date Posted: January 02, 2003 at 12:25 AM
No Juice! No power. No output. Nada.
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Sound Pressure
You know you have the right amount of pressure when your eyes start to water! Now you've got Juice!
Posted By: navion20is
Date Posted: January 02, 2003 at 1:18 PM
i used to have it wired bridged to my fosgate dvc 12's were it would only be 1ohm at first I didn't know your not supposed to do that until the paper got seperated from the plastic part part on one woofer but it pounded hella hard. now I have it wired into 4ohm but it doesnt pound as hard it still pounds but not as much before it used to shake me and my navigator now it just shakes my navi you can still feel it though. when you turn it up to high on the stereo some of the bass lines cut out? ------------- ?
Posted By: wvsquirrel
Date Posted: January 02, 2003 at 10:24 PM
Most amps have auto-protect circuitry. Your amp could be temporarily shutting off to prevent damage if the load becomes too much. Try turning down the gain on the amp, and/or on the signal from the HU ------------- Squirrel
"No more Cpt. Kirk chit chat"
If its too loud, then you're too old
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Posted By: navion20is
Date Posted: January 02, 2003 at 10:54 PM
i already tried that it doesnt work what do you mean the load becomes too much, too much ohms or to less I used to run it at 1 ohm and it never did that i t ------------- ?
Posted By: navion20is
Date Posted: January 02, 2003 at 10:55 PM
i already tried that it doesnt work what do you mean the load becomes too much, too much ohms or to less I used to run it at 1 ohm and it never did that it just blew one of my speakers just the paper part ------------- ?
Posted By: wvsquirrel
Date Posted: January 02, 2003 at 11:23 PM
I was refering to the gains coming from the Headunit (gains=input signal, ohms=output signal). If the input signal becomes too high, some amps shutdown. How hot is the amp getting when it shuts down? This could also be a cause. Do you lose bass at the same place, in the same song, every time? Or does it happen randomly? ------------- Squirrel
"No more Cpt. Kirk chit chat"
If its too loud, then you're too old
Donate to the12volt.com
Posted By: navion20is
Date Posted: January 02, 2003 at 11:39 PM
it doent get very hot, yes i lose bass in the same place every time when its too loud what if i put it back to 1 ohm ------------- ?
Posted By: SOUND PRESSURE
Date Posted: January 03, 2003 at 12:07 AM
Turn down the bass levels on your head unit and see if that helps.
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Sound Pressure
You know you have the right amount of pressure when your eyes start to water! Now you've got Juice!
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