Canuck Audio Mart Hifi and Audio ForumCanuck Audio Mart Hifi and Audio Forum
It is currently Tue Dec 11, 2018 4:12 pm

All times are UTC - 8 hours




Post new topic Reply to topic  [ 10 posts ] 
Author Message
 Post subject: Car audio help please
PostPosted: Tue Feb 17, 2015 4:46 pm 
Offline

Joined: Wed Mar 21, 2007 4:09 pm
Posts: 506
Location: Toronto, ON, CA
I have a pair of subwoofers with dual voice coils and 2 pairs of connectors on the drivers. Do I just wire the terminals in parallel?


Top
 Profile  
Reply with quote  
PostPosted: Tue Feb 17, 2015 5:03 pm 
Offline
User avatar

Joined: Tue May 21, 2013 12:54 pm
Posts: 6629
Location: Dodge City, NB, CA
It's been a while but it seems to me that such subwoofers are meant to be wired left channel on one set of terminals and right channel on the other.

_________________
Show respect, even to those who don't deserve it, not as a reflection of their character, but as a reflection of you.


Top
 Profile  
Reply with quote  
PostPosted: Tue Feb 17, 2015 5:11 pm 
Offline
User avatar

Joined: Sat Jul 04, 2009 6:08 pm
Posts: 18509
Location: Montreal, QC, CA
Depends on how you want to use them, the impedance of each winding and what your amp will put up with. Parallel, series or 1 coil per channel, but the latter should only be used as a last resort AFTER the mono summing has been done at the electronic crossover level in my opinion. If the voice coils are 8 ohms each, then any of the 3 possibilities is acceptable, but if they are 4 ohms each, running them in parallel could be hazardous for all but the most robust of amps, but as many car amps are designed to run under those 2 ohm loads, anything goes..


Top
 Profile  
Reply with quote  
PostPosted: Tue Feb 17, 2015 5:18 pm 
Offline
User avatar

Joined: Tue May 21, 2013 12:54 pm
Posts: 6629
Location: Dodge City, NB, CA
I pulled this off the net, it reinforces Obi's reply.

"A single voice coil (SCV) is one length of wire wrapped around the former. A dual voice coil (DVC) has 2 coils of wire wrapped around the former. A single voice coil subwoofer will have a positive and negative terminal, while a dual voice coil subwoofer will have 2 positive and 2 negative terminals, one for each coil. The price of a DVC subwoofer will usually be slightly higher than its SVC brethren due to the extra coil. There is no performance advantage between the two types of voice coils, so why bother?

The advantage of a DVC subwoofer over the SVC subwoofer is your available wiring options and flexibility. Single voice coil subwoofers can only be wired at the ohm level specified, for example 4 ohm. A dual voice coil will say 4 ohm, but it will actually wire to 2 ohm or 8 ohm. That last sentence alone tends to blow the minds of many, you are not alone. The ohm level needs to match up with the ohm level your amplifier can handle. A DVC woofer has 2 wiring options while the SVC has only one option.

When everything is all said and done, the only real difference between a single and dual voice coil subwoofer is the number of coils, which means a greater wiring flexibility. The power handling, frequency response, box volume specifications, etc. will remain the same for both types of woofers (except in rare cases). Feel free to use the Sonic Electronix subwoofer wiring diagram to help you configure the right subwoofers."

http://knowledge.sonicelectronix.com/to ... er-wiring/

_________________
Show respect, even to those who don't deserve it, not as a reflection of their character, but as a reflection of you.


Top
 Profile  
Reply with quote  
PostPosted: Tue Feb 17, 2015 8:13 pm 
Offline
User avatar

Joined: Sun Feb 11, 2007 1:33 am
Posts: 587
Location: Newmarket, ON, CA
As said, that really depends on each coils resistance, what load the amp needs to see & how many channels it has. There are a number of different configurations depending on this info.

Wiring in parallel will reduced the ohm load to half, while wiring in series will double the ohm load (for each coil)


Top
 Profile  
Reply with quote  
PostPosted: Wed Feb 18, 2015 4:20 pm 
Offline

Joined: Wed Mar 21, 2007 4:09 pm
Posts: 506
Location: Toronto, ON, CA
Thanks for all the help guys.

Phil


Top
 Profile  
Reply with quote  
PostPosted: Fri May 29, 2015 7:43 am 
Offline

Joined: Fri May 29, 2015 7:09 am
Posts: 7
Location: calgary, AB, CA
http://www.the12volt.com

then along the top click on subwoofer wiring wizard and enter your set up and then it will spit out the different ways you can set them up for sound and performance.
The most important part is the box, remember that! :D


Top
 Profile  
Reply with quote  
PostPosted: Fri Jul 31, 2015 7:47 am 
Offline

Joined: Wed Jan 14, 2015 7:11 pm
Posts: 3
Location: Ottawa, ON, CA
Check this link out:

http://www.crutchfield.com/S-7nKLgvFQdd ... iring.html


Top
 Profile  
Reply with quote  
PostPosted: Wed Oct 10, 2018 7:02 pm 
Offline

Joined: Mon Sep 24, 2018 6:36 pm
Posts: 7
Location: South Holland, IL, US
I also have the same issue. I noticed it after tweaking some of the truck accessories in the interior. Will check out those suggestions. thanks!


Top
 Profile  
Reply with quote  
PostPosted: Sat Oct 27, 2018 1:18 pm 
Offline

Joined: Thu Jan 01, 2015 3:40 pm
Posts: 384
Location: bowmanville, ON, CA
KJT1 wrote:
It's been a while but it seems to me that such subwoofers are meant to be wired left channel on one set of terminals and right channel on the other.

DO NOT do this! That is so far from good advise its stunning.

If you wire a 2ohm dvc sub in parralell it will present a 1ohm load. If you wire in series itll present 4ohms...its simply to get the best load out of your amp. If your amp makes 500wrms at 4ohms then your sub will see 500wrns when wired in series. If your amp is stable enough you could literally double the power (or more) by dropping to 1 ohm. If your amp doesnt claim to be stable to 1 ohm dont wire your sub for 1ohm you will almost certainly let the ghost out eventually


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group