amp shuts down

why is it when i turn up the volume and a low bass note hits the amp goes into protect?

Overheating? short? could be one of a million things. look at the BIg 3. Maybe your alternator cant get enough power to the amp.

give alittle more info like brands and specs.

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84 Mazda Rx7 GS
4 15" Audiobahn High Excursion
1 2500W Orion Amp
Custom Box

Start with your ground for the amp. Where is it? Also what amp and subs?

A short would likely cause it to go in to protection right away.

I agree though that the big three would be the way to go either way, and with more info on the amp size, an alternator may be in your future.

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Heat, Ground, battery condition......alternator output. ( it takes power to make power ) IN SHORT....THE BIG 3.....

The subs .....whats the load on the amp? Is it capable of putting out what your asking it to do?

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The most common sources of these symptoms would be either improper impedence or incorrect gain control setting.  How are your speakers wired to the amp (ohm load- stereo/mono) and how is the amp rated per channel/mono?  You may have a bad spot in one of the voice coils- push the cones in/out with your hand while trying to measure a short.  How did you set the gain controls?  If you're not sure, do a search in here to find out how.

Ground/ low voltage will usually not send an amp into protect, rather the sound may simply cut out for a bit.

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My ex once told me I have a perfect face for radio.

I say re-check your amp installation. Check the impedance on your subs too.

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~The Rookie~
Rookie of the year that is...
Don't let the smoke out of your equiptment..it doesn't go back in.

sorry for the lack of specs.

i got a hifonics bx1500D, and 2 15" audiobahn subs. optima red top. stock alt. stinger wiring.
none of the hookups are the prob i got a meter and its getting plenty of power and a good ground.
im pretty sure my subs are wired for 1ohm operation.

but when i opened the amp case there was a small burn mark on the case??

let me know what you guys think. thanks

There's no need for the jumper wires that run from one sub to the other- remove them.  Have you checked the impedences?  Is your amp still under warranty?

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My ex once told me I have a perfect face for radio.

yea amp is under warranty.
so i dont need the one black and one red from left sub to right sub?

im pretty sure it was 1 ohm but i didnt check with a dvom

As stated above, one or a combination of the following is happening:

1) the gain is too high.  How did you set it?

2) the amplifier is overloading the car's electrical system and your voltage is dropping too low.  Do you have a volt meter?  What is the voltage at the amp when it goes into protect?  If it drops too low (usually about 10.5 volts) the amp will go into protect, and if so you'll need a high output alternator.

3)  The power cabling or ground connection is inadequate, causing the voltage to drop low enough to shut down the amp as above.

4) There is an electrical problem in one of the speakers, in the amp, or in the wiring.  That diagram is wrong, by the way.

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yea i checked with a dvo meter and all the hookups are good. i am almost positive its the amp. it couldtn be the electrical because i had used it for 2 days just fine and when i turn the stereo on. the amp pops when it turns on.

the guys from ike still havnt emailed me back about an exchange

Doe's it work at lower volumes?

what type of alternator and battery upgrade have you done to supply the current this amp requires?

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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place

i know for sure its not the alt or bat but here it is again. optima red top and stock alt. not the alt because it was supplying power just fine for like 2 days. does not work at low volumes. doesnt even turn on. it turns on then goes into protect RIGHT away

-94-accordh22 wrote:

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i know for sure its not the alt or bat but here it is again. optima red top and stock alt. not the alt because it was supplying power just fine for like 2 days. does not work at low volumes. doesnt even turn on. it turns on then goes into protect RIGHT away

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Bad amp or bad speaker(s) or bad speaker wire.  Did you try any of the suggested troubleshooting ideas already given you in this thread?

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yes i tested everything its not the speakers i plugged in a friends amp temporarily and it worked fine. i know for sure its the amp. but ike sound wont email me back. i emailed the guy on there site that is in charge of the warranty and returns and no respond for like 2 weeks so far.

if that diagram is correct that you drew than chances are you cause the amp to fry and will happen again if you hook up another amp that way.

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JUST ONE MORE AMP!!!
hu,alpine cva 1005/dva 5205
sound processor,symmetry(first one).
sub amp,power 1000 the terminator.(1992).
subs,spl comp dual 1 ohms.
punch 150hd on a 10" ev.
alotofhighs

yea becuase i think that is a .5 ohm setup. but thats what the book said for a 1 ohm setup. what would a one ohm setup be?

2 4-ohm DVC subs wired for one ohm:

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yea but on the amp its got 2 + terminals and 2 - terminals.
and on the subs its got 4 terminals on each side of the sub.

Your amplifier is mono, which means it has ONE output.  The fact that it has multiple connection points is for convenience only.  You do not need to use them all.  Same for your speakers, they are DVC and if the manufacturer decided to add extra terminals, they mean nothing.  I am sure the owner's manuals for your gear tells you this.  Wire it as in the diagram if you want a 1-ohm load.

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right on. thanks to everyone that helped in this topic. i emailed dustin again at ike and finally got a messages saying he will get it in like 3 business days or whatever.