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n00b trying to wire 2 subs

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=54324
Printed Date: May 15, 2024 at 6:35 PM


Topic: n00b trying to wire 2 subs

Posted By: seaner623
Subject: n00b trying to wire 2 subs
Date Posted: April 20, 2005 at 9:54 PM

OK so i have two cerwin vega HED12DVC subs along with a Power Acoustik to start me off in my car audi adventures. Now i just need help on how i should properly wire these together. Im not sure what overall resistance i should run 2 ohm or 4 ohm or to run them in series or in parallel. any help would be greatly appreciated. heres some specs on the amp and subs...• No. of Coils: 2 • Sensitivity (2.8V@1m): 90 • Power Handling RMS: 200 Watts • Nominal Impedance: 4 ohms/coil • Voice Coil Diameter: 2” • Mounting Diameter: 11 1/16” (281mm) • Mounting Depth: 5 5/16” (134.5mm) • Speaker Displacement: 0.070 cubic ft (1.98 liters)
and heres some specs on the amp....
  • 4 x 85 watts into 4 ohms RMS, 4 x 105 watts into 2 ohms RMS
  • MOSFET power supply with high/full/low selectable crossover
  • 40 Hz 18 dB bass boost
  • 3-way protection circuit
  • High/low level inputs with floating ground
  • Gold plated RCA connecto
  • basically some things i need to know are how i should wire these and at what amount of resistance. also what gauge wire is reccomended to connect the subs to teh amp. thanks for the help




    Replies:

    Posted By: Captanham
    Date Posted: April 20, 2005 at 10:16 PM

    basically, there isn't a great way to do this, you are running 2 dual voice coil subs on a 4 channel amp, this doesn't really work out, it can be done (oviously) but you will never pull 100% of the power out of that amp that you want to

    there are a few ways, the way that it SHOULD be done, is to run the voice coils in series with each other. This way each speaker is 8 ohms, (notice this is high and wont pull all your power out) Then bridge one sub on the front set and one on the back set, this would have the same power output of having each coil on it's own channel... this way you are garenteed not to blow the amp because you are dropping the ohms too low,,

    Now, if you want to try and get the power out of this thing, you can run the voice coils in parrallel, and then bridge them, now this amp is ment to have a 2x 4 ohm load bridged, if you run the subs in parrallel and bridge them you are running 2 x 2ohm, which is TOO LOW.. this is ok, IF you keep your amp turned down, and watch yourself, you will get a bit more distortion doing it this way, but not too much.. i would make sure to keep the amp down at first, and work your way up, to make sure it doesn't over heat every 15 min or that it doesn't go into protect...
    best thing to do, go get yourself a 2 channel or mono channel amp, leave the 4 channels for your 6.5's and 6x9s



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    Posted By: Captanham
    Date Posted: April 20, 2005 at 10:18 PM

    sorry i forgot this, i would use a 14 or so gauge wire, if you really want to you could do 12, but your really not going for some crazy ass 10000 watt system, so 14 16 something like that should do fine



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    Posted By: seaner623
    Date Posted: April 20, 2005 at 10:39 PM
    Thanks man this is exactly what i was looking for.




    Posted By: seaner623
    Date Posted: April 21, 2005 at 1:10 AM

    Ok so if i want to run two DVC subs in parallel and bridge them how would i go about this wiring wise. Im still very new to all of this and any diagram or explanation of how to set these up would be awesome.

                                               Thanks





    Posted By: Captanham
    Date Posted: April 21, 2005 at 1:13 AM
    connect both the positives together on the sub and run that to the positive on the amp, then do the same with the negative... if you are going to bridge it you will have to look at the amp, most amps have you put the positive to the left speaker positive and the negative to the right speaker negative, or something like that

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