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Sub Wiring

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=27767
Printed Date: May 21, 2024 at 4:17 AM


Topic: Sub Wiring

Posted By: Prophit
Subject: Sub Wiring
Date Posted: March 05, 2004 at 12:09 AM

I have a set of swr-1021D subs and wanted to know if i should wire them Series or Parallel? Here is the setup of my systm now

(2) SWR-1021D 2Ohm+2Ohm

JBL POWER Series BP300.1 Mono 300wrms

Alpine 7863 CD Changer

Any Suggestions would be great. I think they are series now but i would have to check the box and see how they are wired on the inside. Thanks




Replies:

Posted By: mobile1
Date Posted: March 05, 2004 at 12:33 AM
If the amp can handle it, go parallel



Posted By: harvey1959
Date Posted: March 05, 2004 at 4:22 AM
If this amp is one ohm stable you can go with the 2 subs in parallel, I'm not sure it is stable to one Ohm.  Otherwise leave it in series for a 4 ohm load and 150 watt to both speakers.

-------------
Harv



Posted By: DYohn
Date Posted: March 05, 2004 at 8:24 AM

The Alpine SWR-1021D is a DVC 2-ohm speaker.  The JBL mono amp is stable at a 2-ohm load.  Wire both speakers for 4-ohms (put both voice coils in series) and then connect them to the amp in parallel (for a net 2-ohm load on the amp.)  Here's a diagram:

posted_image




Posted By: dyno
Date Posted: March 05, 2004 at 8:24 AM

I didn't research the subs, but from the description they look like dual-2ohm voice coil subs. So shouldn't he wire the voice coils on each sub in series, and then wire the two subs in parallel, achieving an overall load of 2ohm's? (Could also wire the voice coils in parallel, and then the subs in series to achieve the same load I think). I've never wired dual voice subs, so I'm just going from my readings, and again, I haven't looked up the subs or amp (assumes the amp is 2 ohm stable).

-dyno




Posted By: dyno
Date Posted: March 05, 2004 at 8:27 AM

DYohn beat me to it by a matter of seconds :)

-dyno




Posted By: Prophit
Date Posted: March 05, 2004 at 9:44 AM
OK i will check tonight and get it all nicely setup. Thanks greatly for the help.. Its been about 3 years since i have stopped installing.. This page rocks too.. Been alot of great help and reference.




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