tweeters keep blowing
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=18071
Printed Date: July 21, 2025 at 11:12 PM
Topic: tweeters keep blowing
Posted By: skylark
Subject: tweeters keep blowing
Date Posted: August 25, 2003 at 9:24 PM
i have an lanzar vibe 410 4 channel amp. now 2 channels are running my 6.5 speakers while the other 2 channels are running my tweets i have blown over 8 pairs of tweets from kickers,polk, and some cheap walmart tweets now all the tweets peak power was from 100 to 175 and the amp only puts out 100 watts per channel max so what am i doing wrong? whats funny is the walmart tweets outlasted all the name brand tweets. so now im wondering if i could just get 2 pairs of tweets and run them in parallel so they dont overload now can i do that remember i will run them off the other 2 channels that i was running the other tweets off of. ,,,,,,,,,,,,,,,,,,,,,,please help!
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goingcrazyonsound
Replies:
Posted By: skylark
Date Posted: August 25, 2003 at 9:33 PM
one more thing i also used bass blockers and the amp has a built in crossover so i know no bass ever went to the tweets
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goingcrazyonsound
Posted By: bberman1
Date Posted: August 25, 2003 at 9:41 PM
Sounds like you may have the gain on the amp set too high for the tweets. How high is the gain set?
Posted By: skylark
Date Posted: August 25, 2003 at 9:57 PM
about the same as the 6.5 come to think about it i do have it turned up all the way now i am going to turn it down but can i still run 2 pairs of tweets off one pair of channels? ------------- goingcrazyonsound
Posted By: bberman1
Date Posted: August 25, 2003 at 10:16 PM
That amp is 2 ohm stable so yes you can wire 2 sets of tweeters in parallel to the amp. But I would suggest that you turn the gain down that is probably what is blowing the tweeters. You can have the best tweeters out there but if you are sending them a clipped distorted signal they will blow. Here is an explanation on how to set the gains but tweeters are a little more difficult to adjust since it is hard to hear the distortion sometimes. https://incolor.inebraska.com/weisinator/car-audio-basics/set_amp_gains.htm
Posted By: skylark
Date Posted: August 26, 2003 at 12:30 AM
their is two gains on my amp so i turn the gain down on the tweets but keep the gain at the same level on the 6.5 speakers. this wont effect the power of my amp right? ------------- goingcrazyonsound
Posted By: wvsquirrel
Date Posted: August 26, 2003 at 6:58 AM
If the tweeters are hooked up on 2 channels, and the 6.5's are run on another 2 channels, then only the tweeters should be affected ------------- Squirrel
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Posted By: DYohn
Date Posted: August 26, 2003 at 7:12 AM
Also, you say you used "bass blockers," but most real tweeters require crossovers on the order of 3500 Hz or higher. What crossover point are you using? Too low, and you will "blow" them, no problem.
Posted By: fuseblower
Date Posted: August 26, 2003 at 7:23 AM
I am glad someone brought up this subject. I have been having problems with tweeters for the longest. It looks like I have tried everything but nothing works. My tweeters came with crossovers and the crossovers actually exploded before the tweeters fried. replaced the crossover and this time the tweeters and the crossover fried together. Tried other tweeters and they all seem to go out. My system is crossed over at 180 using the highpass filter on the radio and at about 300 at the amp.
Posted By: DYohn
Date Posted: August 26, 2003 at 9:34 AM
300 Hz is way too low for a tweeter. This is a mid bass/midrange frequency. Remember also that many tweeters list their power rating for the SYSTEM they are designed to operate in, not for the amount of amplifier power they will handle directly. In a standard 2-way speaker setup (woofer and tweeter) approximately 75% of amplifier power goes to producing the low frequencies in the woofer, and only 25% to the tweeter. So in tweeters, listed power ratings are often for amplifier program power, and assume you are using the proper crossover for the tweeter. The fastest way to toast a tweeter is to send it low frequencies at relatively high power, and the fastest way to toast a high-pass crossover is to send it too much power. Passive crossovers are rated for the maximum voltage the capacitors can handle, and exceeding that by even a little in a cheaper xover can result in "max smoke." An electronic crossover is a much better solution, but requires more time, money and care to set it up properly. Tweeters should be crossed over between 2500 to 5000 Hz, depending on the driver's ratings, and generally the higher the better. A passive crossover should be rated for 1.5 times the system power you intend to throw at it. You need a mid-bass and/or midrange driver to handle the frequencies between your subs and the tweets.
Posted By: skylark
Date Posted: August 26, 2003 at 2:44 PM
the same thing happened again today i took everybodys advice and it stii happens so now i have 9 pairs of tweets left so now i gonna go buy a 50 watt amp and see if that works ------------- goingcrazyonsound
Posted By: bberman1
Date Posted: August 26, 2003 at 3:06 PM
Did you have a high pass X-Over set at at least 3500 hz?
Posted By: DYohn
Date Posted: August 26, 2003 at 3:53 PM
[QUOTE=skylark] the same thing happened again today i took everybodys advice and it stii happens so now i have 9 pairs of tweets left so now i gonna go buy a 50 watt amp and see if that works{/QUOTE] What crossover are you using?
Posted By: JamesRH
Date Posted: August 26, 2003 at 8:42 PM
tweets are very vonerable to distortion,,,are you giving them clean power...i have tweetes that are rated at 50WRMS getting about 150WRMS and are still chirping because the signal is clean and crossed over properly...Rockford fosgate proved this by running a normal tweete with something crazy like 50,000 watts of pure sound and NO distortion for 3 days and the tweeter was fine after that...
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