sub/amp wiring help
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=25582
Printed Date: May 18, 2024 at 6:34 AM
Topic: sub/amp wiring help
Posted By: Chadfx
Subject: sub/amp wiring help
Date Posted: January 30, 2004 at 5:50 PM
Hi, I have question regarding phoenix gold T1000.2, and eclipse sw8122dvc subs.(aluminum cones) I have 3 of them, and am trying to figure the best way to wire with out blowing fuses, originally I had 60amp fuse for the amp. when I was running 2 subs, but added 3rd with series/parallel wiring and blew fuse in about 30 sec. so any suggestions on either wiring or fusing would be great.. ------------- Wanted: More help than most
Replies:
Posted By: Chadfx
Date Posted: January 30, 2004 at 7:29 PM
Let me add that the VC (total of 6) are each set at 3 ohms. my amp puts out max power at 4 ohms bridged. Do I need a bigger fues? or different wiring set up? again any help is appreciated. ------------- Wanted: More help than most
Posted By: Clean Install
Date Posted: January 30, 2004 at 8:36 PM
well you can use ohms law to figure out the amps that the system is pulling... If you take your amps RMS total output power and your voltage and divide you can determine how many amps you are pulling.... if you have 1000rms and 14 volts you would be drawing a little over 71 amps I believe the recomended size fuse is 80 Good Luck ------------- If we learn from each success and
each failure, then we can improve ourselves
Posted By: jpranwez
Date Posted: January 30, 2004 at 10:35 PM
I just want toget this straight. Your running 6 ohm dvc subs at 3 ohms and then how to the amp. If this is the case you might have a problem. I'm not familiar with amp. I s it one ohm stable or is 2 ohm stereo and 4 ohm bridged. Hold it I justed looked up the amp. If you have three 6 ohm dvc's run the voice coils in parallel and the all the subs in parallel to the amp. That's a one ohm load and your amp can handle it. I don't know what to tell you about the fuse except that if you ran the subs to the amp in series in would raise your impedance really high and I think that might cause you to blow fuses. I hope I helped. Oh yeah, nice amp.
Posted By: jpranwez
Date Posted: January 30, 2004 at 10:37 PM
And if this is wrong let us know how many ohms the voice coils are example; 4ohm dvc operate 2 or 8 ohms, 6 ohm dvc operate 3 or 12 ohms.
Posted By: audiokid1
Date Posted: January 31, 2004 at 1:17 AM
Hold up don't do the whole parallel - parallel idea thats posted. Wire the coils in "Series" Then bridge the amp and wire the subs in parallel.
Posted By: audiokid1
Date Posted: January 31, 2004 at 1:22 AM
One more thing, I am not familiar with the amplifier either but I am guessing it is class A/B and by assuming this lets just presume the amplifier is 60% efficient if you are lucky. Well thing is if it is supposed to supply 1000 watts you'll be drawing about 120 Amps at 13.8V because the rest of that power will be going up in heat.
Posted By: Chadfx
Date Posted: January 31, 2004 at 6:13 AM
Actually on the eclipse 12" dvc subs each vc is a 3 ohm load, if I wire each sub in series then each sub caries 6 ohm load, the amp its self is Phoenix Golds top of the line amp the titanium series, possibly with exception to there limited edition products.the rated handling ability of the amp is 2 ohm stereo, 4 ohm mono. or bridged... any further suggestions? not real sure on class of the amp. but I do know that amps by phoenix gold are among the most efficient on the market..
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Wanted: More help than most
Posted By: Clean Install
Date Posted: January 31, 2004 at 6:21 AM
I would suggest a 80 amp fuse... ------------- If we learn from each success and
each failure, then we can improve ourselves
Posted By: jeffchilcott
Date Posted: January 31, 2004 at 2:45 PM
wire each sub in parrallel giving you a 6 ohm load, wire all three subs in series giving you a 2 ohm load, bridge at amp 1 ohm if only 2 ohm stable dont bridge
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Posted By: forbidden
Date Posted: January 31, 2004 at 8:13 PM
You are telling us the dcr of the sub. The single voice coil version of this sub is infact 3.1 ohm and the dvc sub is dual 4 ohm. The problem that you have is with the amp. It is not designed and engineered to handle the load presented by three subs in mono, which I presume is how you have them amp running, It is blowing fuses as it is protecting itself, as impedance drops, current draw goes up, if you continue on this path you will cause failure of the amp. You amp can safely run two of your subs in a series / parallel circuit. If you are intent on running all 3 of these subs     you will need an amp that is capable of doing it properly and a box that will handle all that thes monsters can dish out. ------------- Top Secret, I can tell you but then my wife will kill me.
Posted By: Chadfx
Date Posted: February 01, 2004 at 6:44 AM
I am grateful for the advice. I have one more question though... is it ok for me to wire each voice coil of sub to seperate channels? For example vc 1 of sub 1 to chanel one, and voice coil 2 of sub 1 to chanel 2. if so then I can wire the 2 vc in series creating 6 ohm load ad the 3 vc parrellel bringing it down to 2ohm load and wire it to 1 channel, do the same with the remaing 3 coils and wire it to chanel 2. if I can do that then I would be with in the specs of the amp at 2 ohm stereo..please let me know what you guys think ------------- Wanted: More help than most
Posted By: Chadfx
Date Posted: February 01, 2004 at 6:47 AM
ps: Thiele small parameter puts each vc at 3.1 ohm/coil
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Wanted: More help than most
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