Print Page | Close Window

multiple voice coil 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=130002
Printed Date: April 28, 2024 at 8:00 PM


Topic: multiple voice coil wiring

Posted By: 04nata
Subject: multiple voice coil wiring
Date Posted: January 02, 2012 at 7:48 PM

I have to do a temp wiring contraption until I can get another amp, so hear is what I am up against

4-10's that have dual 4 ohm voice coils

2-15's that have single 4 ohm voice coils

what is the best way to wire these all to get the closest to a 2 ohm load ?

using the calculators I came up with this.......

wire 2 each of the 10's(4 voice coils) in parallel to get a 1 ohm load (4-4-4-4=1) 

and then run to 1 each of the 15's (single 4ohm) in a series connection with the above 1 ohm and get a 5 ohm load

so if that is half of the speakers, then if I run in parallel with the other half (5-5=2.5), my amp is 1 channel and stable at 2ohm, so I should get about 900 total watts at the 2.5ohm load.

assuming I have calculated the above correctly,

so there are 3 questions:

did I calculate correct?

can I wire it this way?

how much power will each speaker get assuming 900 total output? (each 10 would be running at 2 ohms and each 15 would be at 4ohms, would they all get 150 watts (900/6=150))

thank you for your help



-------------
2004 Hyundai Sonata
Kenwood KDC-X599 HU
2-Sundown X-18D4
2-SQ Q4500.1
2-SQ Q90.4
1-Massive DBX4
8-Niche 5.25 mids
8-Niche Tweeters
4-Skar 8" mid-bass
OhioGen 220a alt
OhioGen 350a alt
156.0



Replies:

Posted By: stevdart
Date Posted: January 02, 2012 at 11:09 PM

The power distribution would be (in ohms) 2, 2, 2, 2, 4, 4.........with each of the 4 ohm impedances getting half the power of any 2 ohm.  So divide the total power up into five equal parts with each 2 ohm load getting one part and the two 4 ohm loads sharing one part.

If the power is 900 watts, each ten gets 180 and each 15 gets 90.



-------------
Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.




Posted By: 04nata
Date Posted: January 03, 2012 at 9:44 AM
is there anything out there that I can use to adjust the impedance level, say I have 2.5 ohm but I want it to see just 2.

-------------
2004 Hyundai Sonata
Kenwood KDC-X599 HU
2-Sundown X-18D4
2-SQ Q4500.1
2-SQ Q90.4
1-Massive DBX4
8-Niche 5.25 mids
8-Niche Tweeters
4-Skar 8" mid-bass
OhioGen 220a alt
OhioGen 350a alt
156.0




Posted By: DYohn
Date Posted: January 03, 2012 at 9:56 AM

04nata wrote:

is there anything out there that I can use to adjust the impedance level, say I have 2.5 ohm but I want it to see just 2.

Nope.



-------------
Support the12volt.com




Posted By: 04nata
Date Posted: January 03, 2012 at 9:58 AM
ok, thanks,,,,,so my first posts' assumtion and calculations were correct? and it is "ok" to wire that way?

-------------
2004 Hyundai Sonata
Kenwood KDC-X599 HU
2-Sundown X-18D4
2-SQ Q4500.1
2-SQ Q90.4
1-Massive DBX4
8-Niche 5.25 mids
8-Niche Tweeters
4-Skar 8" mid-bass
OhioGen 220a alt
OhioGen 350a alt
156.0




Posted By: i am an idiot
Date Posted: January 03, 2012 at 10:50 AM
Calculations above would be if all woofers were paralleled.

Per Each leg (the 2 x 10s and the 1 x 15) the 15 will get 80% of the power and each 10 will get 10%




Posted By: 04nata
Date Posted: January 03, 2012 at 11:14 AM

i am an idiot wrote:

Calculations above would be if all woofers were paralleled.

Now I am really confused, if I parallel all woofers I would have a 0.4 ohm load, never seen an amp that can handle that

my plan was to parallel each 10" sub's voice coils (each one has 2-4ohm coils) giving each sub a 2 ohm load, wire 2 of these in parallel and get a 1ohm load, then wire it in series to 1 of the 15's and get a 5ohm load, do this for the other side also so I have 2 each 5ohm loads, wire those in parallel to the amp, and get a final 2.5ohm load to the amp.

does that make sense



-------------
2004 Hyundai Sonata
Kenwood KDC-X599 HU
2-Sundown X-18D4
2-SQ Q4500.1
2-SQ Q90.4
1-Massive DBX4
8-Niche 5.25 mids
8-Niche Tweeters
4-Skar 8" mid-bass
OhioGen 220a alt
OhioGen 350a alt
156.0




Posted By: i am an idiot
Date Posted: January 03, 2012 at 11:35 AM
I edited my earlier post.




Posted By: 04nata
Date Posted: January 03, 2012 at 11:44 AM

that will work for now

I will get 360 watts to each 15"

and 45 watts to each 10"



-------------
2004 Hyundai Sonata
Kenwood KDC-X599 HU
2-Sundown X-18D4
2-SQ Q4500.1
2-SQ Q90.4
1-Massive DBX4
8-Niche 5.25 mids
8-Niche Tweeters
4-Skar 8" mid-bass
OhioGen 220a alt
OhioGen 350a alt
156.0




Posted By: i am an idiot
Date Posted: January 03, 2012 at 12:39 PM
Correct.





Print Page | Close Window