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series-parallel

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=26782
Printed Date: May 20, 2025 at 12:43 AM


Topic: series-parallel

Posted By: aaustinasdf
Subject: series-parallel
Date Posted: February 19, 2004 at 10:04 AM

I know this site has calculaters but they don't help me when it come to DVC. I can do almost anything but ohms confuse the **** out of me. I have 2 15" High performance subs from parts express. Their 4 ohms per coil. So if I'm running them in parallel what are the ohms or how do I put that in the calculater.  Any help would be app.



Replies:

Posted By: DYohn
Date Posted: February 19, 2004 at 11:14 AM

A speaker with two coils is put into the calculator as if it was two speakers, each at (in your case) 4-ohms.  So, if you have 2 speakers, each with 2 coils, that is 4 coils total.  If each coil is in parallel, that places 4 X 4-ohm coild in parallel for a net load on the amp of 1 ohm.  If you connect the two coils on each speaker in series, this adds the resistances together of the two coils, so 4 + 4 = 8-ohms each.  Put TWO 8-ohm loads in parallel for a net load on the amplifier of 4-ohms.

So your two best choices are to wire for either a 1-ohm or 4-ohms total load on your amp.





Posted By: DYohn
Date Posted: February 19, 2004 at 11:21 AM
Oh by the way, what did you buy from Parts Express?  I know they bought out the remaining stock of Kove subs, and they also handle the killer Dayton line...




Posted By: aaustinasdf
Date Posted: February 19, 2004 at 1:53 PM
I bought two 15s.  I currently have 1 15" dayton TITANIC MKIII in my room. Its a killer.  Check this link to see the subs I just bought. https://www.partsexpress.com/pe/pshowdetl.cfm?&DID=7&Partnumber=299-665 




Posted By: DYohn
Date Posted: February 19, 2004 at 2:58 PM
Yea, those look like the Kove's.  Big time SPL drivers.  The Titanics are fantastic home theatre subs.  I have one of the 12" versions.





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