2nd time blowing these 6x9's
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=31289
Printed Date: May 14, 2024 at 3:34 AM
Topic: 2nd time blowing these 6x9's
Posted By: xTimx
Subject: 2nd time blowing these 6x9's
Date Posted: April 29, 2004 at 4:09 PM
ok well today i was playing my stereo and i heard a pop in my 6x9's next thing you know i blew one of them, which i dont understand i have a knack for hearing distortion..:\ this is my 2nd time blowing these 6x9's, the first time they were on high-pass filter, now when i installed them again they were on normal filter. is there a key role into finding how loud your 6x9's could really go!?
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xTimx
Replies:
Posted By: southside
Date Posted: April 29, 2004 at 4:16 PM
usally listing for distorting. u don't want to listen to them till ya go deaf.imo.
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southsider
Posted By: lensam69
Date Posted: April 29, 2004 at 4:18 PM
Can you define "blow" (No dirty jokes pleaaaaase) ? Did you burn the coil? Did the spider or the cone rip or come appart? Does it still play?? Did you see smoke at any point? ------------- forbidden wrote:
Wrong advice young grasshopper, go back to square one and do not pass go.
Posted By: xTimx
Date Posted: April 29, 2004 at 5:07 PM
no smoke..the woofer was just blown, but the tweeter was still going!
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xTimx
Posted By: DYohn
Date Posted: April 29, 2004 at 5:38 PM
Sounds like overpower to me. What's the speakers and what's the amp? ------------- Support the12volt.com
Posted By: forbidden
Date Posted: April 29, 2004 at 5:46 PM
If you are running subs, the output of the subs masked the distortion coming out of the 6x9's. Also if the back of the 6x9's are in the same airspace as the subs, the subs will physically cause the cones of the smaller 6x9's to move when they are not supposed to. In any case, the crossover should be turned on and the gain needs to be turned down. If the speakers do not have "hats" on them, pick some up. XTC makes some good speaker hats that are very inexpensive. ------------- Top Secret, I can tell you but then my wife will kill me.
Posted By: lensam69
Date Posted: April 29, 2004 at 8:04 PM
Ok... my english has failed me... What are "hats"?? Are you refering to dustcaps Rob?? xTimx, Can you elaborate a bit more on your speaker configuration?? Are they sitting in an enclosure with the sub(s) like Rob said?? Do you have subs?? ------------- forbidden wrote:
Wrong advice young grasshopper, go back to square one and do not pass go.
Posted By: customsuburb
Date Posted: April 29, 2004 at 8:15 PM
A speaker hat protects a speaker from moisture and dirt and mounts behind it. It also provides a box and would protect your 6x9s from over-excursion because of the amount of air your subs are moving in your trunk. Here are some from XTC like Rob mentioned.
Posted By: lensam69
Date Posted: April 29, 2004 at 8:37 PM
Ohhhhhh ok... yeah, of course i know what those are... Just never refered to them as hats before... Thanks!
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forbidden wrote:
Wrong advice young grasshopper, go back to square one and do not pass go.
Posted By: xTimx
Date Posted: April 30, 2004 at 6:25 AM
ok well here is the set up:
i have a RF 301x running the mb quart 6x9's and 3.5s, neither of the gains for the front and rear speakers are even passed half. the 6x9's are underneath the rear deck. when i'm driving by myself i always flip down the rear seat to listen to music.
when i tweak the system out i disconnect the RCA's that are running the rears and subs and leave the fronts on, turn up my HU till about half (25) but since i dont want a heavy load on the amp i turn the HU up to 30 then turn up the gain for the front speakers on the amp till its sufficient. disconnect the fronts and plug in the rears. do the same. and the same with the subs.
its kinda weird, both my gains on the amp for the fronts and rears are set the same. and my 6x9s keep blowing and not the 3.5's? hmmmm
if it helps any, this the set up i have on my equalizer on the HU
--(+1)--(+1)
----------------------==-----==-----==---------------
--(-1)
--(-2)
--(-3)
the max height and depth for the sliders are 5 and -5
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xTimx
Posted By: DYohn
Date Posted: April 30, 2004 at 8:30 AM
Judging from the description you just posted, you are blowing the speakers because you do not have the gain set properly and you are overdriving the amp, probably clipping like crazy, and burning the voice coils because you are sending DC to the speakers. You should NEVER use amplifier gain as a volume control! It is designed to be set ONCE to match the input voltage characteristics and then left alone. It sounds to me like you simply are mis-using the system. If you do not understand how to set amplifier gain, please click "SEARCH" at the top of this page and do a search for "Setting Gain." There have been at least 50 threads on this forum that describe how to do it correctly. Otherwise, you'll keep blowing those Quarts. ------------- Support the12volt.com
Posted By: xTimx
Date Posted: April 30, 2004 at 8:41 AM
well i know not to tamper with the gain after its set. i'm not that stupid lol but ya thanx anyways..i'll look that up
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xTimx
Posted By: lensam69
Date Posted: April 30, 2004 at 11:13 AM
xTimx] wrote:
br>when i tweak the system out i disconnect the RCA's that are running the rears and subs and leave the fronts on, turn up my HU till about half (25) but since i dont want a heavy load on the amp i turn the HU up to 30 then
Since you're doing that, maybe the head unit is sending a clipped signal, Which at high volumes you WILL NOT be able to hear, this clipped signal gets amplified, heating your voice coils excesively... You should set the gain down completely, then turn up the volume on your head unit until you can hear distortion... Then turn it dow a bit... THAT is your max volume (It doesn't matter if it's only 50% of what the unit says it's capable of). If you go beyond that volume, then the HEAD UNIT is the one that clips the signal, regardless of amp/gain configuration After you have that volume set, turn the gain up until you hear distortion again... That is your amp distorting, turn dow the gain a bit until it dissapears. That's it... never touch your gain ever again... And don't go beyond that set volume! ------------- forbidden wrote:
Wrong advice young grasshopper, go back to square one and do not pass go.
Posted By: forbidden
Date Posted: April 30, 2004 at 1:40 PM
You forgot one thing dude, the crossover settings. I imagine that the smaller 3.5" speakers have a much higher crossover point. What is the crossover point on the 6x9's. To me it sounds like a combination of too low a crossover point, too high a gain setting and do you as well have subs in the trunk that are interfering with the 6x9's?
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Top Secret, I can tell you but then my wife will kill me.
Posted By: xTimx
Date Posted: April 30, 2004 at 7:17 PM
well i finally said forget it and had a professional installer tweak it out for about 15 mins. so everything is good now. i'm gonna try and get myself some 6x9 hats.
i dont think the subs are interfering with the speakers, i always have my back seat folded down most of the time, and when there is people in the back seat, the music is ussually down cause of talking and stuff!
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xTimx
Posted By: forbidden
Date Posted: April 30, 2004 at 11:12 PM
If the subs are playing in the same chamberered area as the back of the 6x9's, they are definitely interfering. Spend the $10.00 and put some hats on there. Give the speakers the respect they deserve.
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Top Secret, I can tell you but then my wife will kill me.
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