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adding up Ohms for speakers?

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=64603
Printed Date: October 31, 2024 at 6:48 PM


Topic: adding up Ohms for speakers?

Posted By: konrad100
Subject: adding up Ohms for speakers?
Date Posted: October 18, 2005 at 1:58 PM

Well here goes. I have a 2 ohm speaker for the front and another 4 ohm speaker for the front as well, if i hook them up in parallel to the same channel what is the total ohms of the two speakers total???

Q#2...
I now have 2 speakers same set up, but both are 4 ohm speaker and they are connected in parallel, now is the total 2 ohms??

Also its hooked up to an amp one channel that has a 2 ohm at 140 wrms, or 4 ohms at 70wrms. If it is 2 ohm load from the 2 speakers does that mean that each speaker is getting 140 wrms or is it split in 1/2 and each speaker only sees 70 wrms???



Replies:

Posted By: sdy284
Date Posted: October 18, 2005 at 1:59 PM
...
why is one speaker 2ohm & another 4ohm?
you should have the identical speaker on the left & right




Posted By: konrad100
Date Posted: October 18, 2005 at 2:04 PM
I have a 6.5 in the door, and a 4" in the dash and the other side same, i'm just wondering what will the ohm add up for the 2 on each side, meaning 2 ohm 6.5 and 4 ohm 4"..
You see...and just wondering if that will be a problem in hooking up to the amp power that i discribed earlier..




Posted By: sdy284
Date Posted: October 18, 2005 at 2:07 PM
OHM Calc

go there ;)




Posted By: DYohn
Date Posted: October 18, 2005 at 2:13 PM

konrad100 wrote:

I have a 6.5 in the door, and a 4" in the dash and the other side same, i'm just wondering what will the ohm add up for the 2 on each side, meaning 2 ohm 6.5 and 4 ohm 4"..
You see...and just wondering if that will be a problem in hooking up to the amp power that i discribed earlier..

Yes it will be a problem.  Didn't we advise you before to can the 4" in the dash?  Regardless, placing a 4-ohm and a 2-ohm load on the same amplifier channel will do two things: 1) your net impedence on the amp will be 1.333 ohms, which may overload it, and 2) the relative loudness will not balance with the 2-ohm driver utilizing twice the amplifier power of the 4-ohm driver (and thus being louder.)



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Posted By: konrad100
Date Posted: October 18, 2005 at 2:42 PM
I now have 2 speakers same set up, but both are 4 ohm speaker and they are connected in parallel, now is the total 2 ohms??

Also its hooked up to an amp one channel that has a 2 ohm at 140 wrms, or 4 ohms at 70wrms. If it is 2 ohm load from the 2 speakers does that mean that each speaker is getting 140 wrms or is it split in 1/2 and each speaker only sees 70 wrms???

Can you tell me what will the the wrms going to each speaker in this situation, thanks




Posted By: DYohn
Date Posted: October 18, 2005 at 2:45 PM

You need to do some homework.  I recomend going to this web site and commence reading, and keep re-reading until you start to understand.  You'll thank me for it later.



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