wiring woofers in series make them louder?
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=99597
Printed Date: April 28, 2024 at 8:46 PM
Topic: wiring woofers in series make them louder?
Posted By: s_goodie
Subject: wiring woofers in series make them louder?
Date Posted: December 02, 2007 at 6:25 PM
will wiring your subwoofers in a series make it louder or is it pointless
-------------
Stuey BABE
Replies:
Posted By: techman93
Date Posted: December 02, 2007 at 8:26 PM
What is the main objective of your question? Do you know what series vs. parallel wires does? Did you learn about resistance and ohms and how to calculate different scenarios of subs set ups? Amp will put less power (wattage) out at higher ohms and also changes the frequency ranges as well.
https://www.the12volt.com/ohm/ohmslaw.asp
https://www.the12volt.com/caraudio/woofer_configurations.asp------------- The wire I'm test'n isn't doin' what it's supposed to be doin'... I am so glad I printed that tech sheet, with the wrong info.
Do it right the first time... or I might have to fix it for ya
Posted By: s_goodie
Date Posted: December 02, 2007 at 8:45 PM
thanx so,doese it matter what subwoofers your pushing.
-------------
Stuey BABE
Posted By: audiocableguy
Date Posted: December 02, 2007 at 9:16 PM
Your question cannot be answered with a Yes or a No. Math, your answer is in the numbers. Each situation will vary with type and number of amplifiers, speakers, etc.
Posted By: aznboi3644
Date Posted: December 03, 2007 at 1:52 AM
wiring DVC coils in series doubles the motor strength compared to paralleling the coils...thats all I can add lol
Posted By: haemphyst
Date Posted: December 03, 2007 at 8:33 AM
aznboi3644 wrote:
wiring DVC coils in series doubles the motor strength compared to paralleling the coils...thats all I can add lol
Ummmm... I think that's not true... Paralleling the voice coils increases the current through the voice coils, thus increasing amp-turns, thus increasing magnetic flux to push against the static flux of the magnets... If wired in series, you have to increase the voltage by a factor of 1.414 to get the same current, and equal amp-turns.
I'll have to draw it out to be sure, but that should be right. That's why you get more output when the coils are paralleled. (3dB gain, IIANM) ------------- It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: Steven Kephart
Date Posted: December 03, 2007 at 10:20 AM
I think what he means is in series BL goes up. This is true, but so does Re. Many engineers look at motor strength as BL^2/Re which takes wiring differences out of the equation. However Dan Wiggins always liked to compare Qes instead as he said it was more accurate. s_goodie; if you apply the same power to a sub in series as you do in parallel, output will be the same. Due to ohms law, if you decrease the load (parallel instead of series) for a given voltage, current increases and so does power output. If the amplifier can handle the extra load then output will increase due to more power applied. Of course this is a gross generalization as the design of the equipment being used will have an effect on this. For instance an amp with a tightly regulated power supply like the JL slash series amps would produce nearly the same amount of power at both loads to where differences would be inaudible.
Posted By: DYohn
Date Posted: December 03, 2007 at 10:30 AM
Haem, wiring a DVC in series increases BL since Re doubles (and L doubles, the length of wire in the magnetic field.) But as you say, with a fixed input voltage wiring in parallel doubles current which will increase B (magnetic flux strength.) Bottom line: it is really impossible to predict which effect has more influence on the loudspeaker's performance without making several gross assumptions and keeping certain factors constant which are not constant in actual application. Higher BL does not necessarily have a direct impact on increasing output levels either, although it generally will improve things like transient response at the expense of decreasing Qes and increasing Fb. Most loudspeaker manufacturers rate BL with DVC coils in series. ------------- Support the12volt.com
Posted By: DYohn
Date Posted: December 03, 2007 at 10:31 AM
Hi Steven.  ------------- Support the12volt.com
Posted By: sarcomax
Date Posted: December 04, 2007 at 10:52 AM
The poor OP has not understood word one after his last post... Yes it matters what woofers you are pushing. the heavier ones strain my back.
-------------
|