Impedance

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=38823
Printed Date: May 15, 2025 at 9:09 PM

Topic: Impedance

Posted By: Sancho
Subject: Impedance
Date Posted: September 08, 2004 at 7:28 PM

posted_image

ok one more question...got one sub dual 2ohms voice coils connected to kicker amp 350x1 4Ohm or 700x1 2ohm so I have only option two...if I connect my sub like in pic 1 it's goona be 1ohm so it is not gonna work with this amp

Question is it possible to change impedance to 2 ohms adding some capacitor or smth cause I new here do not understand some things...so I can run my amp 700x1 Thank you

Replies:

Posted By: stevdart
Date Posted: September 08, 2004 at 7:43 PM

I think most use that coil setup when they want to run two subs...giving 350 watts to each sub.

posted_image

Add another of those if you can, and you'll get your 700 watts, and an increase in db by adding another speaker. You can't change the sub you have.

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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: Sancho
Date Posted: September 08, 2004 at 7:45 PM

so there is no other way...cause I have no space for one more sub nothing can change impedance????

Posted By: Sancho
Date Posted: September 08, 2004 at 7:59 PM

can I add some kind of resister or smth if yes please anybody help me there

Thank You

Posted By: stevdart
Date Posted: September 08, 2004 at 8:14 PM

Then trade the sub for a dual 4 ohm sub, so you can get to 2 ohms.

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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: Alpine Guy
Date Posted: September 08, 2004 at 9:37 PM

A resistor wouldn't do anything benificial, , it would suck half the 700 watts, , so your sub will still only get the 350 rms, , either way, your sub is only going to see 350 rms.

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2003 Chevy Avalanche,Eclipse CD7000,Morel Elate 5,Adire Extremis,Alpine PDX-4.150, 15" TC-3000, 2 Alpine PDX-1.1000, 470Amp HO Alt.

Posted By: thapimpfromchi
Date Posted: September 08, 2004 at 9:41 PM

exactly. alpine guy is right. you can put a resistor in there, but its gonna act like another speaker and take the other 350 watts. so you wont see/hear and gain by doing this. your best bet would be to do like stevdart said and get a different woofer.

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1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp

Posted By: thapimpfromchi
Date Posted: September 08, 2004 at 9:46 PM

also, what kinda sub is it? can it handle 700 watts rms? you might be better off with just the 350.

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1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp

Posted By: jeffchilcott
Date Posted: September 09, 2004 at 12:50 PM

the only thing I have ever used and tried is a linear magnetic coupler. but they rob anywhere from 30-40% or the power anyways

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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place