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Two Caps to four amplifiers? When I did this I just wired them in parallel top the amps. Just pos to pos and minus to minus make sure to keep your wires as short as possible to get the best performance out of them. The power will transfer freely throughout the amps. I had mine directly wired to my rear distribution blocks. Remember to use the resistor that is supplied when hooking them up the first time of charging. The wire will spark when you touch it to the Battery power, but if you don't use it, the wire will arc and leave black pitted spots on your connectors.
Basically, at low power the amplifier is not asking for a lot of power from the electrical system to power your sub woofer. For lack of a better term and probably the best way to explain it is. It uses up all the power in the wires leading to it at a high volume, and has to wait for more. Kind of like when someone squeezes a garden hose when your trying to use it. That would be the high volume, starving the amplifier. The capacitor stores power in it to power the amp at high volume. 2 farads would probably be bulletproof on a single amplifier system, but 1 farad should work well enough. Or seek help from an expert on exactly what size capacitor you should use. If you find yourself saying: My amp cuts out.
If this assisted in solving your problem, please take the time to rate it, as I took the time to write it. Thank you.
You would prefer to have no charge at all to test a capacitor. Those capacitors with a charge could be fatal if you touch them. Please be careful. So to check it make sure to discharge the capacitor. The take your analog/ multimeter and set it to 10 Ohms and with negative to negative and positive to positive touch the leads on the capacitor. The meter should go up to a small resistance and then drop back down to infinity. That is a functioning capacitor. If it goes to a low resistance and stays then it is a leaky capacitor. If it goes to '0' then it is a shorted capacitor. If you get no response at all the this is an open capacitor.
It;s not getting enough power. Seriously consider getting at least a 1 farad capacitor. It stores power for when the sub hits and recharges in between. I posted a tip explaining it in layman's terms if you look at my tips for more clarification. Please rate my assistance and leave a testimonial.
Ok, if it only happens when the engine is running and the noise changes with the gas, that's alternator whine. Alternator whine is caused by the ambient noise in the voltage which is produced by the alternator. Alternators don't make DC current, they make AC current. The AC current is then converted to DC current and then sent to the rest of the car. The noise comes from an imperfect conversion from AC to DC. That noise travels down the power cable to the amp and causes noise in your speakers. This is often called "dirty power". Dirty power can be variations in voltage, inconsistent current, or noise within the voltage. One of the simplest ways to clean up noise in a car stereo system is to use capacitors. If you add a capacitor to your system just before the amplifier's power cable, it will help filter out the noise from the alternator. Start with 1/2 Farad or 1 Farad. That should be plenty to clean up the noise. The capacitors will also have a positive effect on your amplifier's thermal and sound performance, but you may not notice it.
sorry for the caps BUT YES!!!
The U.S.A. models are made with tried & true "brand name" components.
The new china ones are made with the cheapest parts possible and high failure rates.
Good luck with warranties too. They are currently backlogged 6 months - so if your amplifier needed to be sent in for warranty work - you would be without it for over 6 mo.
They will almost always refuse a swap-out. They choose to repair all warranty work.
Get an older model for reliability, features, AND i think they look better.
Orion, PPI, Phoenix Gold, and more are falling into the USED TO BE BETTER category these days.
FYI - You may be interested in Massive Audio. They have a NO QUESTIONS ASKED warranty for 2 years on everything they sell (except the DMX Line of subwoofers - because they have a replaceable voicecoil assembly) if installed by a dealer!!!
Also brands like Incriminator Audio and Sundown Audio are made here in the US.
Thanks for using FixYa - A FixYa rating is appreciated!!
Check the wires for a lose connection or corrosion. You may need a capacitor.
Basically, at low power the amplifier
is not asking for a lot of power from the electrical system to power
your sub woofer. For lack of a better term and probably the best way to
explain it is. It uses up all the power in the wires leading to it at a
high volume, and has to wait for more. Kind of like when someone squeezes a garden hose
when your trying to use it. That would be the high volume, starving the
amplifier. The capacitor stores power in it to power the amp at high
volume. 2 farads would probably be bulletproof on a single amplifier
system, but 1 farad should work well enough. Or seek help from an
expert on exactly what size capacitor you should use. If you find
yourself saying: My amp cuts out.
If this assisted in solving your problem, please take the time to rate it. Thank you.
Does'nt matter what brand, and you seem to know about keeping the correct values etc. What I would look for are Audio grade caps. If it's a powerful system I usually put higher values in rather than the stated values on the caps, providing the physical size is correct. Don't know if you still have the user manual but it's here if you want it. http://www.retrevo.com/s/Adcom-GFA-4404-Car-Amplifiers-review-manual/id/582bh550/t/1-2/
monster cable its good for our amp but do nothing for the battery its all depend how many amp our amp take away from the battery if our alternator is 90 amp maximum the alternator output is 75% off 90 amp =70 amp available if each amp take 25 amp you only have 20 amp left for everything else there no way our alternator is enough that y you drain the battery you need a bigger alternator and battery the minimum you can do is put ourself another battery you gonna have more capacite but you gonna have to charge it up at night put a little battery charger 2 or 3 amp per hour that should fix it cheaply hope it help dont forget to rate me cheers