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Unread 03-16-2013, 07:03 PM   #1
cookingguy
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Electrical question

So when driving at night time with my headlights on they pulse to the beat of my bass on my stereo. also so do the dash lights.
I have an 800 W amp hooked up to a 10inch box. my question is if put in a high output alternator in will that take care of my problem. I think I need a new alternator anyways because the volt meter on the gauge the needle is just above the 0

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Unread 03-16-2013, 07:07 PM   #2
JbmLaredo
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All you need is a capacitor installed on your Hotwire to the amp it absorbs the sudden draw when the amp hits so no lights will dim. U can pick up a cheap one at ur local Walmart
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Unread 03-16-2013, 08:20 PM   #3
cookingguy
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cool thanks for the infor will be getting one tomorrow. Is it pretty easy to hook up? auto electrical is not my strong point.
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Unread 03-16-2013, 08:29 PM   #4
RockRollin
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Has your battery died? Is the guage bad? If just above zero I wouldn't think it would last long. Also is amp wired directly to battery with remote wired to HU, and what year rig are we de aling with?
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Unread 03-16-2013, 09:00 PM   #5
JbmLaredo
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Naw they are a piece of cake the instructions are in the box with the cap. As far as your volt gauge goes its not giving the correct voltage. There is no possible way to have just above zero and you were driving down the road with headlights on... Much less running subs lol I would take it to the nearest auto parts store and have them check alternator and load test the battery just to make sure they r in good shape
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Unread 03-16-2013, 10:43 PM   #6
super98lsc
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depending on year or not for an 800w amp I'd upgrade the alt to a cs144 amp. Amps = watt/volt so 800/12 = 66.67amps which is damned near the full output of an 87 or 94 amp factory alt.
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Unread 03-16-2013, 10:46 PM   #7
Siva283
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It takes the voltage reg time to adjust output. You might want to look into a one farrad capacitor. It is hook up to your amp power wire. It keeps the electrical system from seeing those pulses from the base.

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Unread 03-17-2013, 08:31 AM   #8
RockRollin
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Now I have to check......thanks y'all...... I run a 1k amp, 200w amp, with no dim issues. I wonder what alt I have?
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Unread 03-17-2013, 08:31 AM   #9
cookingguy
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so it is a 1979 cherokee. What should my voltage out be re reading.
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Unread 03-17-2013, 08:34 AM   #10
cookingguy
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Quote:
Originally Posted by RockRollin View Post
Has your battery died? Is the guage bad? If just above zero I wouldn't think it would last long. Also is amp wired directly to battery with remote wired to HU, and what year rig are we de aling with?
The battery has not died and the amp is wired to the battery and a remote wire to the HU and its a 1979 cherokee
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Unread 03-17-2013, 09:30 AM   #11
RockRollin
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13.8 min while running. If its not killing the battery, the cap is the answer, easy to install. I would be getting the guage fixed though.
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