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Do I need to add an extra battery?
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MrShowinYaUp
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PostPosted: Wed Jan 11, 2012 10:07 am    Post subject:  Do I need to add an extra battery? Reply with quote

I added a JL 1000/1 amp in my Imp and my subs slam hard on the low notes for a little while then the amp shuts off with the Low V light on. Im guessing that means Low Volts. Then it turns itself back on. I have a crappy walmart battery under the hood. I was thinking about putting a Yellow Top or Kinetik under the hood and doing the Big 3 Upgrade. Would that be enough or would I need to add a second battery? And if I have to add a second battery would my factory alternator be strong enough to keep both batteries charged? I would appreciate the help.
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00impala123
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PostPosted: Wed Jan 11, 2012 1:36 pm    Post subject:   Reply with quote

What are you're settings on the amp set at?

You should check it with a volt meter. Hold it on there and see the voltage.

The big three will help, but if you are experiencing such a large voltage drop that the amp shuts off, it might not be enough. Do the big three with 1/0 gauge wire and see what happens.

How old is your battery? If you test your current battery, and its still good, consider adding the second YT or Kinetic to the trunk instead of replacing the primary battery. If that doesn't solve your problem, look into a HO alternator. Sounds like you may need one.

Do your lights dim with the system at all, or does it just suddenly shut off and say low voltage?

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billy101
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PostPosted: Wed Jan 11, 2012 2:55 pm    Post subject:   Reply with quote

What wiring do you have leading from the battery to the amplifier? Also, make sure your gains are set correctly. With the Big 3 done and a good stock battery you should be fine. Our alternators are pretty stout and should be good enough to handle that amp no problem.

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MrShowinYaUp
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PostPosted: Wed Jan 11, 2012 5:06 pm    Post subject:   Reply with quote

00impala123 wrote:
What are you're settings on the amp set at?

You should check it with a volt meter. Hold it on there and see the voltage.

The big three will help, but if you are experiencing such a large voltage drop that the amp shuts off, it might not be enough. Do the big three with 1/0 gauge wire and see what happens.

How old is your battery? If you test your current battery, and its still good, consider adding the second YT or Kinetic to the trunk instead of replacing the primary battery. If that doesn't solve your problem, look into a HO alternator. Sounds like you may need one.

Do your lights dim with the system at all, or does it just suddenly shut off and say low voltage?



I will have to check with a volt meter.

My interior lights dim when the subs hit

As far as the gain.. Bass boost and gain are set half way with the bass eq switch on.. Im going to have to check the center freq, "Q", and infasonic settings
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billy101
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PostPosted: Wed Jan 11, 2012 5:10 pm    Post subject:   Reply with quote

MrShowinYaUp wrote:
00impala123 wrote:
What are you're settings on the amp set at?

You should check it with a volt meter. Hold it on there and see the voltage.

The big three will help, but if you are experiencing such a large voltage drop that the amp shuts off, it might not be enough. Do the big three with 1/0 gauge wire and see what happens.

How old is your battery? If you test your current battery, and its still good, consider adding the second YT or Kinetic to the trunk instead of replacing the primary battery. If that doesn't solve your problem, look into a HO alternator. Sounds like you may need one.

Do your lights dim with the system at all, or does it just suddenly shut off and say low voltage?



I will have to check with a volt meter.

My interior lights dim when the subs hit

As far as the gain.. Bass boost and gain are set half way with the bass eq switch on.. Im going to have to check the center freq, "Q", and infasonic settings



Turn that bass boost off.

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2001 Impala LS 3.8 - 118,510 miles. 9/2/2011. RIP - 11/12/2011
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PostPosted: Wed Jan 11, 2012 5:37 pm    Post subject:   Reply with quote

Did you set the gain the right way or did you guess?

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98ss
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PostPosted: Wed Jan 11, 2012 7:27 pm    Post subject:   Reply with quote

Been a while since I was in the audio scene, but can't you get some capacitors to help the voltage problem?
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00impala123
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PostPosted: Wed Jan 11, 2012 8:29 pm    Post subject:   Reply with quote

98ss wrote:
Been a while since I was in the audio scene, but can't you get some capacitors to help the voltage problem?


You can, but they are a waste. They are a band aid, and often times hurt you more than they help. In his case especially they wont help him.

Also to OP..what size gauge do you have for power wire?

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MrShowinYaUp
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PostPosted: Wed Jan 11, 2012 9:37 pm    Post subject:   Reply with quote

IffyG wrote:
Did you set the gain the right way or did you guess?


I set my gains with a SMD DD-1 so there is no clipping


00impala123 wrote:
98ss wrote:
Been a while since I was in the audio scene, but can't you get some capacitors to help the voltage problem?


You can, but they are a waste. They are a band aid, and often times hurt you more than they help. In his case especially they wont help him.

Also to OP..what size gauge do you have for power wire?


I have 4 gauge ran from the battery to the amp.

I also failed to mention that I also have two 800watt 4 channel amps but they have there own separate 8 gauge amp kits going to them.. So all together on my battery I have two 8 gauge kits and one 4 gauge kit
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IffyG
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PostPosted: Wed Jan 11, 2012 9:46 pm    Post subject:   Reply with quote

MrShowinYaUp wrote:

I also failed to mention that I also have two 800watt 4 channel amps but they have there own separate 8 gauge amp kits going to them.. So all together on my battery I have two 8 gauge kits and one 4 gauge kit


Well there is your problem. Your alternator can't provide enough power to keep the amps happy. You need to look into a HO alternator.

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topgun
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PostPosted: Wed Jan 11, 2012 9:48 pm    Post subject:  do i need Reply with quote

Hey dude, turn that thing down. I can hear it even from here. Cool

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MrShowinYaUp
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PostPosted: Wed Jan 11, 2012 9:51 pm    Post subject:   Reply with quote

IffyG wrote:
MrShowinYaUp wrote:

I also failed to mention that I also have two 800watt 4 channel amps but they have there own separate 8 gauge amp kits going to them.. So all together on my battery I have two 8 gauge kits and one 4 gauge kit


Well there is your problem. Your alternator can't provide enough power to keep the amps happy. You need to look into a HO alternator.


What is a good brand HO alternator?
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bbengineer
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PostPosted: Wed Jan 11, 2012 10:00 pm    Post subject:   Reply with quote

Just an FYI...

Simply adding more batteries will not get rid of dimming...

Changing your battery to a better one (IE: with a lower ESR or higher standing voltage) may help because it will reduce the load on the alternator making more current available for the audio gear

Here's the order of things to do:

1) Big 3
2) Replace main battery with a 'better' battery
3) HO Alternator

Extra batteries will allow you to run the radio for longer with the car off, but since the typical standing voltage of a car battery (12.6V ) is lower than the voltage put out by the alternator ( ~ 13.8V - 14.4V ), the battery is not capable of preventing the voltage sag

Adding a cap may help if your alternator capacity is on the hairy edge, but in most cases it will just add load to the alternator. If you alternator has enough capacity for your system, then a cap can be useful in smoothing voltage ripple, but not to prevent large voltage sag

BBEngineer

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MrShowinYaUp
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PostPosted: Wed Jan 11, 2012 10:11 pm    Post subject:   Reply with quote

bbengineer wrote:
Just an FYI...

Simply adding more batteries will not get rid of dimming...

Changing your battery to a better one (IE: with a lower ESR or higher standing voltage) may help because it will reduce the load on the alternator making more current available for the audio gear

Here's the order of things to do:

1) Big 3
2) Replace main battery with a 'better' battery
3) HO Alternator

Extra batteries will allow you to run the radio for longer with the car off, but since the typical standing voltage of a car battery (12.6V ) is lower than the voltage put out by the alternator ( ~ 13.8V - 14.4V ), the battery is not capable of preventing the voltage sag

Adding a cap may help if your alternator capacity is on the hairy edge, but in most cases it will just add load to the alternator. If you alternator has enough capacity for your system, then a cap can be useful in smoothing voltage ripple, but not to prevent large voltage sag

BBEngineer


The light dimming really doesnt bother me. Its not that bad and I only see it if the doors are open.

My plans was to buy either a Yellow Top or Kinetik battery and do the Big 3 for now to see what happens with that. I know they have a guy in town that take your stock alternator and beefs it up to push out more voltage. Im just unsure as if I should do that or buy an actual HO alternator. When installing a alternator that pushes out more voltage is it basically a plug and play set up or do I have to upgrade more things just to put it in?
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PostPosted: Wed Jan 11, 2012 10:15 pm    Post subject:   Reply with quote

The dimming is indicative that your alternator is maxed out... which means it's time for an upgrade (if the Big 3 & better battery don't solve it)

HO Alternators put out more current, not more voltage

If it were me, I'd go with a name brand HO alt...

BBEngineer

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