two subs with different impendances

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k_fifth

Member - Posts: 20

Joined: March 16, 2008

Location: New Jersey, United States

Posted: March 28, 2008 at 12:03 AM / IP Logged

I have 2 kicker L7's, one is 2 ohm dvc and the other is 4 ohm dvc and I have a mono class D amplifier (SPL DK-2600D). I wired the 4ohm sub at 8 ohms and the 2 ohm sub at 4 ohms and i'm running them parrallel to this amp. It sounds good and all but now I'm wondering If it's gonna be okay like that. I know one sub is hitting harder than the other so anyone one have any suggestions. Can i wire just one voice coil on one and wire the coils on the other one so that they have the same impendance? I really need advice.

i am an idiot

Platinum - Posts: 13,674

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: March 28, 2008 at 3:55 AM / IP Logged

That question is going to open a "Not so New" can of worms here. You may have to read this and decide for yourself. You will have to read every page and every post in the entire thread. https://www.the12volt.com/installbay/forum_posts.asp~TID~74640~PN~1

Yes you can use only one coil of a dual voice coil woofer. Wiring the dual 2 as a 4 ohm speaker and then just using one coil of the dual 4, and then paralleling them at the amp will get them closer to equal than they are now.

k_fifth

Member - Posts: 20

Joined: March 16, 2008

Location: New Jersey, United States

Posted: March 28, 2008 at 6:54 AM / IP Logged

okay, i'll take a look at it then i'll let u know what i think and what suggestions i have. thanks.

a.d.r.

sedate

Silver - Posts: 1,173

Joined: July 03, 2004

Location: Colorado, United States

Posted: March 28, 2008 at 9:10 AM / IP Logged

i am an idiot wrote:

https://www.the12volt.com/installbay/forum_posts.asp~TID~74640~PN~1

Heh I remember that thread.

Flipping through it again is making my eyes hurt.

k_fifth wrote:

Can i wire just one voice coil on one and wire the coils on the other one so that they have the same impendance? I really need advice.

I think the short answer is yes - the long answer is yes but this isn't really ideal.

While I wouldn't really recommend it, it'll work in a pinch and you'll probably get acoustically acceptable results - and - as with any system, careful gain setting is crucial.

"I'm finished!" - Daniel Plainview

k_fifth

Member - Posts: 20

Joined: March 16, 2008

Location: New Jersey, United States

Posted: March 30, 2008 at 9:39 PM / IP Logged

ok, i'm not gonna do the single coil thing so i left it how it was with one sub just hitting harder than the other. now, i have another idea. how about if i wire the 2 ohm sub in series so that it gives me 4 ohms and wire the 4 ohm sub in parrallel so that it gives me 2 ohms and run them together? i figure i'll probably get about 1.5 ohm load off of that but will i damage the subs for wiring them that way?

n2audio

Copper - Posts: 95

Joined: March 02, 2005

Location: United States

Posted: April 01, 2008 at 9:49 AM / IP Logged

that's 1.3 ohms. It should work fine, and you should get quite a bit more power.

k_fifth

Member - Posts: 20

Joined: March 16, 2008

Location: New Jersey, United States

Posted: April 01, 2008 at 10:50 AM / IP Logged

okay, i'll try that out. hopefully everything will be fine. Anyone else with any suggestions please let me know. Thanks

a.d.r.

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two subs with different impendances

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