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Need Help with Hifonics BXI 2008D Amp !

Old 11-16-2008, 12:43 AM
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Need Help with Hifonics BXI 2008D Amp !

I got the amp installed and currently im running it on 4 gauge , upgrading to 0 Gauge on Monday. The amp keeps cutting out at higher volumes.

The Wiring was done by Futureshop for the 4 Gauge Amp Kit that was back when my cousin used to own the car. The Ground wire was just connected to this one Bolt in the trunk eventhough the battery is in the trunk for the BMW's.
Whats up with this and how much difference will it make ?

Last question is that i saw the Amps Spec sheet and it said that , the Hifonics BXI 2008D required a 200 AMp fuse which is not included ??? How Do I add fuses to it ??? There isnt any slot.

Any Help will be Appreciated . Thanx .
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Old 11-16-2008, 01:25 AM
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The 150 amp fuse is meant to go between the power cable from the battery to your new amp.

If something horrific happens and the amp creates a dead short for example, that little 4awg wire will turn red hot and burn your car to the ground.

The fuses in your amp are car fuses, generally an unwritten rule is 10 amps per hundred watts. If your amp is advertised as 500 watts WRms, but only has 2 10 amp fuses, then your amp is pretty much putting out 200 WRms, not 500. This is not exact, and may vary somewhat, but not enough to start a big flame over

Cheers!

EDIT: Take it back and make them do it RIGHT!!!!

John
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Old 11-16-2008, 02:18 AM
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Originally Posted by John__Taylor View Post
The 150 amp fuse is meant to go between the power cable from the battery to your new amp.

If something horrific happens and the amp creates a dead short for example, that little 4awg wire will turn red hot and burn your car to the ground.

The fuses in your amp are car fuses, generally an unwritten rule is 10 amps per hundred watts. If your amp is advertised as 500 watts WRms, but only has 2 10 amp fuses, then your amp is pretty much putting out 200 WRms, not 500. This is not exact, and may vary somewhat, but not enough to start a big flame over

Cheers!

EDIT: Take it back and make them do it RIGHT!!!!

John
Thanks for the help and yes i will take it back till then im not gonna use my subs.

By the way if i want the amp to do 1800 RMS or atleast 1700 RMS the fuses should be 170-180 Amps ??? And my Alternator is 120 Amps ??? Does that have anything to do with it ?
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Old 11-16-2008, 04:19 AM
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im just gonna guess your have a shitty wiring job with bad grounds or just bad connections period, and that the amp cuts out b/c of the voltage drop due to a crappy battery.

Do you know if you have a fuse on your power wire? If you dont that's fukked up, I'd be surprized if FutureShop did not put a fuse on your power wire. BUT if there is a fuse, its not even close to being big enough for your amp. If there is no fuse on the 4 awg now, and you decide to add one, it wont make it any louder or prevent it from cutting out.

what you need to do is:

use 2 peices of 0 gauge and hook up the amp straight to the battery, with both, positive and negative. You need to get an ANL fuse holder with a fuse which you will place on the positive wire between the amp and battery. Get as big of a fuse as you can find, I think 250 amps isnt hard to get.

then you will need 2 more peices of 0 awg and hook up one of them as an extra ground from the battery to the body of the car in the trunk. And with the second peice you create an extra ground from the engine block to the body of your car under the hood.

And then you save up some more money and get a better battery.

And because this advice was free, I will ask you to do something in return. Go back to the FutureShop, ask to speak to the installer that did your car and then bitch slap the out of him. If he asks WTF?? Tell him Father said so.
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Old 11-16-2008, 02:42 PM
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Lol ok , there is this distribution block in middle but for now just to be safe i disconnected my amp. Dont wanna have anything fryed up . Thanks for the advice guys again lol.
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Old 11-16-2008, 07:40 PM
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Yeah you are much better to bring it to someone in your area, that knows what they are doing. Rather than fs.
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