Power issues.....Please Read
So I've searched this forum for my answer and decided to ask you people for help on my problem. I'm new to car audio, so please bare with me.
I have 2 punch 10", pushed with a 520w amp. These items are in a '07 Chevy Silverado. Now, I noticed when I got the truck that the interior lights would dim when I hit the window switches, sometimes the hitting the brake would cause the same issue. When this is happening, the voltage meter on the dash, flucuates between 12 & 14 volts. Seems like a power issue. So when I hooked up my system, the amp loses power when the bass hits. Also putting a voltage meter on the amp shows it drop from 14v to 12v when the bass hits and sometimes even further. This worsens as I increase the volume to the point that the amp cuts out completely. My alternator pushes 145 amps. This seems to be plenty of amperage for the size amp & subs that I have. I had the same amp with 2 12" Bostwicks in a 2001, same model truck and never had problems. What is the problem and what is the cheapest way to fix it? I've read a few things about the big 3. Please explain the big 3? I believe its something to do with wiring 'must'. Thanks! |
Originally Posted by OSDawg
So I've searched this forum for my answer and decided to ask you people for help on my problem. I'm new to car audio, so please bare with me.
I have 2 punch 10", pushed with a 520w amp. These items are in a '07 Chevy Silverado. Now, I noticed when I got the truck that the interior lights would dim when I hit the window switches, sometimes the hitting the brake would cause the same issue. When this is happening, the voltage meter on the dash, flucuates between 12 & 14 volts. Seems like a power issue. So when I hooked up my system, the amp loses power when the bass hits. Also putting a voltage meter on the amp shows it drop from 14v to 12v when the bass hits and sometimes even further. This worsens as I increase the volume to the point that the amp cuts out completely. My alternator pushes 145 amps. This seems to be plenty of amperage for the size amp & subs that I have. I had the same amp with 2 12" Bostwicks in a 2001, same model truck and never had problems. What is the problem and what is the cheapest way to fix it? I've read a few things about the big 3. Please explain the big 3? I believe its something to do with wiring 'must'. Thanks! In the case of grounds it is better to add rather than replace. Current will take the path of least resistence anyways. |
You could try the big 3, adding a capacitor, adding a better alternator, a low resistance battery.... There are many things. The cheapest, as mentioned above, would be to try the big 3 first.
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is your amp class D ? or A/B ?
I got a 120amp alt. basically I had one 10" hooked up to an A/B type amp feeding about 400wrms into the sub and the lights would dim like crazy. Then I switched to a class D monoblock and the issue was gone for good. Even though I didn't need the big 3 I still installed it because it doesn't hurt that's for sure. |
so your saying a class d draws less?
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it is more efficient. I guess it means that it needs less to provide the same amount of output as AB. Therefore most likely it actually draws less current.
I didn't buy the monoblock to fix the problem though, I had my sub running off my 4ch bridged temporarily while waiting to find and purchase a class D monoblock. So this was my observation. |
Originally Posted by belcom
it is more efficient. I guess it means that it needs less to provide the same amount of output as AB. Therefore most likely it actually draws less current.
I didn't buy the monoblock to fix the problem though, I had my sub running off my 4ch bridged temporarily while waiting to find and purchase a class D monoblock. So this was my observation. |
Originally Posted by mayhem
huh? class d`s are more efficent DRIVING subs than a AB because they provide much more power, therefore as a result depending on you sub/amp combo will have a far greater current draw that a 2 or 4channel amp. buying a mono block will not fix this problem.
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that really dosent make sense though lol...maby the draw is so bad you just cant tell because the lights are so dim lol...
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Originally Posted by zinger002
that really dosent make sense though lol...maby the draw is so bad you just cant tell because the lights are so dim lol...
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