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tweeters and parallel 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=50938
Printed Date: June 15, 2024 at 9:07 PM


Topic: tweeters and parallel wiring

Posted By: bad_az_s10
Subject: tweeters and parallel wiring
Date Posted: February 26, 2005 at 9:29 PM

Once again probably a silly question but, once I was advised that running a set of tweeters in parallel to the midrange speakers would not overload the deck....In fact the exact wording I believe was "As long as there is a capacitor on the tweeters the source will not se the additional load." I installed the tweets in the above manner and verified with my DVOM that at the deck there was still 4 ohms in the circuit however after one deck stopped working the second deck i feel runs a little warm... I am wondering if this is coincidence or if this connection is incorrect....thank you for any help on this matter.

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Replies:

Posted By: DYohn
Date Posted: February 26, 2005 at 9:44 PM
Your connection is incorrect.  If your tweeter and your midrange are both 4-ohm speakers, then when the tweeter is receiving a signal (when you capacitor, which is a crossover, is allowing the tweeter to receive the high frequency sounds) unless you have also used the correct low-pass crossover for the mid, both speakers will be connected to the amp placing a 2-ohm load on it.  If it is a head unit, a 2-ohm load is too low and could damage the amp.  Use a proper 2-way crossover for this kind of application.

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Posted By: bad_az_s10
Date Posted: February 27, 2005 at 10:40 AM

so i guess the question is now why was it showing a 4 ohm load at the deck with my DVOM?



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Trucks, Sex, And NO REGRETS!




Posted By: DYohn
Date Posted: February 27, 2005 at 10:49 AM
Because the crossover places the tweeter into the circuit only above a certain input frequency.  Your ohm meter produces DC and was only "reading" the resistance of the mid.

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Posted By: bad_az_s10
Date Posted: February 27, 2005 at 1:37 PM

gotcha.... ok thank you for todays lesson in speaker wiring...



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Trucks, Sex, And NO REGRETS!





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