Capacitor question!!! - Chevy Impala SS Forum
 
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post #1 of 7 (permalink) Old 09-11-2002, 12:34 AM
Southern Comfort
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I installed a 1 farad Rockford Punch Capacitor on my system. I may have did something wrong or maybe not. When I installed the capacitor to my system I noticed that the sound of my woofers drop tremendously. I guess I hooked it up correctly. I hooked the power wire from the battery to the capacitor and capacitor to the amp, and the ground to the frame. The capacitor is located very close to the amp. I am running a Punch Power 200 on 3 JL Audio 12s. I disconnected the capacitor and ran the power wire back to the amp and my woofers started hitting hard again. Am I doing something wrong or what. I tried charging the capacitor first with the resistor thingy that came with it. I hooked it up and the green light came on and then went off. Was I suppose to let it charge till the light went off or what?
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post #2 of 7 (permalink) Old 09-11-2002, 06:21 AM
SS964mo
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SC it sounds like you did right.

Battery cable to + on cap
Good ground from frame to - on cap

+ on cap to + on amp
you can also run a ground from the cap to the amp.

If you use a fuse block and ground block, like I do. You can also wire the cap to the ground block and fuse block (see picture).


Charging with the resistor should only take a few seconds. The resitor is not really needed it's just used so that when you hook up the power wire to the cap it wont spark and put an ark mark on the + pole on the cap.

Save your resitor for discharging the cap when you store it, the cap holds charge like a battery.

<BLOCKQUOTE>quote:</font><HR> When I installed the capacitor to my system I noticed that the sound of my woofers drop tremendously. <HR></BLOCKQUOTE>

I think what caused that is, that the cap was not fully charged.

<BLOCKQUOTE>quote:</font><HR> I disconnected the capacitor and ran the power wire back to the amp and my woofers started hitting hard again. Am I doing something wrong or what. <HR></BLOCKQUOTE>

That sounds to me that the cap got a better charge when you re-connected it the second time. Since it hits hard again, I would not worry about it but check your wiring again, just in case.

3 JL Audio 12s, I'm running 3 10W6's and my Botson Pro 3 ways. I was setting off car alarms last night with the BOOM 1200 watts

I have been doing my own installs for about ten years. I do not consider myself to be a pro but do know my stuff, others may have different oppinions and answers for you.

Here are some great sites with all the information you may ever need:
http://www.teamrocs.com/technical/
http://www.eatel.net/%7Eamptech/elecdisc/caraudio.htm
Hope that helps [img]smile.gif[/img]
post #3 of 7 (permalink) Old 09-11-2002, 08:14 AM
gbelli
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Sounds wired right but this is what gets me:
<BLOCKQUOTE>quote:</font><HR>a Punch Power 200 on 3 JL Audio 12s<HR></BLOCKQUOTE>

Thats not a lot of power for 3 12s.
 
post #4 of 7 (permalink) Old 09-11-2002, 11:21 AM
BCs71
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You need to use a voltmeter and measure the voltage across the pos and neg terminals on the cap. First rewire the cap the way you described in your post (wiring is correct), and then measure the voltage with the system turned on. Get a reading with no music playing, just powered up (key in "on" position). Then play music at normal listening volume and take a reading. Finally, take a reading with a bass-heavy song and crank the volume.
If the voltmeter readings are inconsistent or drop way below 12 volts, then it is possible the cap is faulty/failing.
Did you buy the cap used? Could explain it. If it is brand new, get a warranty replacement.
What is the peak wattage the amp(s) are pulling through the cap? If it is a 1 farad cap, then the wattage should be &lt;1000w.
(I used to run 1200w through a 1 farad, and it sounded awesome. You'd have to be running a ton of wattage through that cap to affect it)
post #5 of 7 (permalink) Old 09-11-2002, 01:25 PM
Southern Comfort
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Mo
Very nice setup

Gbelli
The thing is I have three punch 200s. But my JLs are 8 ohms.I was told that my amps would be running in stereo mode with one amp on each speaker. I am probably going to sell the punch power 200 and find a bigger power amp, the old fin style ones.

BCs71
I am going to go out and purchase moltometer today and test it.
post #6 of 7 (permalink) Old 09-12-2002, 07:16 AM
gbelli
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<BLOCKQUOTE>quote:</font><HR>
The thing is I have three punch 200s. But my JLs are 8 ohms.I was told that my amps would be running in stereo mode with one amp on each speaker. I am probably going to sell the punch power 200 and find a bigger power amp, the old fin style ones. <HR></BLOCKQUOTE>

Ok, now thats better. I'm supprised that they didn't have you bidge the amp. The power 200s bridge to about [email protected] 4ohms I think.

I know all about those finn'd old school RFs www.dea.net/200-2.jpg www.dea.net/400-4.jpg
post #7 of 7 (permalink) Old 09-12-2002, 01:49 PM
Southern Comfort
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My punch power amp is a mono amp ([email protected]). I read somewhere that when it is running around 1 ohm that is pushing out a little over 300 watts. I had this amp in my suburban on 4 12s and pushed the crap out of them.
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