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Bavarian Soundwerks' Mobile Electronics Forum
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Old 09-01-2010, 07:45 AM   #1
judsonabts
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Worst that could happen putting 4 ohm tweeters in?

I have MB Quart 1" tweeters that I want to put in to replace the stock tweeters in my 2005 zhp. What is the worst that could happen here?
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Old 09-01-2010, 08:18 AM   #2
Darkoz
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Apart from better sound than the pissy little factory tweeters, nothing really.
After recently changing all the spaekers in my car I couldn't believe how pathetic and little the factory tweeters were.
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Old 09-01-2010, 08:27 AM   #3
judsonabts
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Originally Posted by Darkoz View Post
Apart from better sound than the pissy little factory tweeters, nothing really.
After recently changing all the spaekers in my car I couldn't believe how pathetic and little the factory tweeters were.
did you put normal 1" tweeters in? i'm a bit worried about taking my door panel off only to find they dont fit.

did you replace other speakers with mis-matched ohm ratings? I have a bunch of extra speakers and would rather just use those if i can (instead of having to find 3ohm speakers somewhere)
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Old 09-01-2010, 08:40 AM   #4
Darkoz
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Originally Posted by judsonabts View Post
did you put normal 1" tweeters in? i'm a bit worried about taking my door panel off only to find they dont fit.

did you replace other speakers with mis-matched ohm ratings? I have a bunch of extra speakers and would rather just use those if i can (instead of having to find 3ohm speakers somewhere)
Yes I replaced the front speakers and tweeters with Orion 6.5" Components which are 4ohm and have 1" tweeters.
The stock tweeter mount had to be modified by cutting out a larger opening for the new tweeters and I then modified the stock midbass speaker brackets and used them to mount the new speakers.
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Old 09-01-2010, 08:41 AM   #5
judsonabts
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Originally Posted by Darkoz View Post
Yes I replaced the front speakers and tweeters with Orion 6.5" Components which are 4ohm and have 1" tweeters.
The stock tweeter mount had to be modified by cutting out a larger opening for the new tweeters and I then modified the stock speaker brackets and used them to mount the new speakers.
how do you cut a larger opening--is it plastic?
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Old 09-01-2010, 08:56 AM   #6
Darkoz
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Yes it's just fairly soft plastic and used a hole saw, wasn't very difficult at all.
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Old 09-01-2010, 11:09 AM   #7
Arty
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As long as you don't go to a lower impedance than factory, you won't have any electrical problems. The tweeters won't have the same sensitivity as the factory crap (probably much higher) so you may need to tweak your treble setting down a couple of steps to flatten out the higher pitched frequencies. You may need to tweak it again once they have run in a bit too.
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Old 09-01-2010, 11:20 AM   #8
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Won't hurt a bit. May change sound some because the simple cap xover value is based on OEM specs.
Impedance matters very little at the upper frequencies. Very important at lower ones.
If sound is too bright (treble heavy/shrill/etc), you can take a small piece of very thin felt and actually cover the tweeter with it. That will tone it down some.
Good luck.
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