holy **** im gonna freak, is my new xs-l101p5 xplod blown!??? - Page 2 - Ranger-Forums - The Ultimate Ford Ranger Resource


Audio & Video Tech General discussion of audio and video for the Ford Ranger.

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  #26  
Old 06-28-2005
optikal illushun's Avatar
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Quote:
Originally Posted by barrman
here's a little more information on what i was describing, and what probably happened to your sub;

Underpowering a speaker is likely to damage the voice coil due to the excess heat created by distortion. This distortion, called clipping, is created when the amp is not able to supply the power demand when the volume is turned up. If you turn the volume up very high without the power to back it up, you'll end up clipping the signal coming out of the amp. The speaker will try to reproduce this clipped signal, and if played under these circumstances for any length of time, the speaker will not last very long.

There is a mis-conception that if you're not giving the speaker as much power as it can handle you won't blow it, but that simply is not the case. The only way to really address this problem is to replace your speaker for one with a lower power rating, and a higher SPL rating, or replace your amp with one that better matches the speaker's power handling capability. An alternative to replacing the equipment is to simply keep your volume turned down!
right bro, underpowering a speaker is fine. turn down the volume and what happens? power supplied goes down. the gains are to set when peak power is supposed to come in related to volume.

its the dumbass people who set the gains high and underpower a driver, usually woofers. i underpowered my old pair or 12s and didnt have a problem, because i set the gains according. theres only tw ways to blow a speaker, thermal and physical. over heat the VC and ur ****ed. physical is self explanitory. clipping will over heat the voice coil because it drives the amp to push more power into the sub then it can handle. its dirty power and its a square wave pattern.
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  #27  
Old 06-28-2005
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Yup, sounds like clipping to me as well. I've blown a few subs myself. Solution? I read and studied and made sure I understood almost all the basics of car audio.

Go here and read like you've never read before:

http://www.bcae1.com/

I haven't blown another sub since :)
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  #28  
Old 06-28-2005
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Gently press on the cone of the sub. It should feel smooth and have moderate resistance. If it is gritty or notchy, or doesn't move you've toasted your voice coil.

*edit* Regardless of what you do about your sub, you might try setting your gain as described here:
https://www.ranger-forums.com/forum2...light=amp+gain

Last edited by fastev; 06-28-2005 at 05:31 PM.
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  #29  
Old 06-28-2005
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Alpine's don't xplod
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  #30  
Old 06-28-2005
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God not "underpowering" again.
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  #31  
Old 06-28-2005
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ok, heres the begining and last of the underpowering subject.

Under powering a speaker WILL NOT blow it, IF the gains are set properly. If the gains are set wrong thermal failure will occur.
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  #32  
Old 06-28-2005
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Quote:
Originally Posted by optikal illushun
ok, heres the begining and last of the underpowering subject.

Under powering a speaker WILL NOT blow it, IF the gains are set properly. If the gains are set wrong thermal failure will occur.

obviously the gains werent quite right ;o)
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  #33  
Old 06-28-2005
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I know Kiel, I've basically fought the "underpowering" myth on this board and many other sites as well. Gonna have to make a sticky about it, I guess...
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  #34  
Old 06-29-2005
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heh, stickey away. most people wont read it anyway :-/
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  #35  
Old 07-01-2005
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thats the dumbest thing,"dont under power a speaker its bad" its the idiots that try to cheap out on amps and find it isnt loud enough and crank the gain(or volume on the amp in their view)
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  #36  
Old 07-01-2005
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Quote:
Originally Posted by bamaboy
thats the dumbest thing,"dont under power a speaker its bad" its the idiots that try to cheap out on amps and find it isnt loud enough and crank the gain(or volume on the amp in their view)
Barrman is obviously referring to the situation in which underpowering IS bad. Because whether any of you are capable of admitting scientific fact or not, if you underpower a speaker/sub you CAN damage it. Just because Barrman didn't take the time to clarify it in "moron-friendly English" doesn't mean he doesn't understand the concept of underpowering in relations to volume and/or gains.
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  #37  
Old 07-01-2005
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who cares, sony sucks, learn to set gains right, and dont touch them after they are set, and that is what was learned by this post

end of story :)
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  #38  
Old 07-01-2005
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Quote:
Originally Posted by optikal illushun
ok, heres the begining and last of the underpowering subject.

Under powering a speaker WILL NOT blow it, IF the gains are set properly. If the gains are set wrong thermal failure will occur.

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  #39  
Old 07-01-2005
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Sony doesn't suck: i haven't had any problems with my sony at all and i have the same one he blew for a year now...if he would've gotten JL Audio, Infinity, or an Eclipse Titanium sub it wouldn't have mattered; it was user error. I mean speakers don't just decide to blow themselves up
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  #40  
Old 07-02-2005
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its not the sony drivers that suck, its the headunits and amps that self ignite.
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