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a bit disappointed with stereo system


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refinery 
Member - Posts: 4
Member spacespace
Joined: September 22, 2008
Location: Canada
Posted: September 25, 2008 at 5:52 PM / IP Logged  

Well I attempted to set the sub gain once again with no luck and plenty of frustrations. My wife even volunteered to help and she could not hear any differences either. The instructions here were excellent and I thank everyone for them but unfortunately in the end the user simply lacked skill and experience. I also attempted to readjust the speaker gains and I ended up losing my initial settings. For some reason, I could not get them back to where I had them and I pushed the speakers to distortion a few times. When I finally gave up and turned them all the way down, I noticed a very faint, strange smell emanating from one of the front speakers. It was so faint that I had to bend down to the speaker and continually sniff in order to detect it but it was there. The speaker still seems to work fine but do you think if I might have damaged the voice coil? I certanly hope not but it was a wake up call. No matter how much you might try, a task will always exist which you will not be able to accomplish by yourself. In my case, this is obviously a task best left to a professional.

However, I have learned a lot from this and I thank you all once again for your help.

chrisjbell 
Member - Posts: 1
Member spacespace
Joined: September 06, 2007
Location: California, United States
Posted: September 25, 2008 at 10:54 PM / IP Logged  

refinery wrote:

... I noticed a very faint, strange smell emanating from one of the front speakers. It was so faint that I had to bend down to the speaker and continually sniff in order to detect it but it was there. The speaker still seems to work fine but do you think if I might have damaged the voice coil? I certanly hope not ...

You may or may not have fried your speaker, but in reading this I was reminded that I'm really good at imagining "frying" smells when I'm worried that I've done something horrible to electric circuits. I have "continually sniffed" many machines trying to track down something by smell but usually find that I'm inventing whatever it is I'm chasing.

I have fried a few speakers and what I usually notice is a buzz.

On the other hand, I've also deliberately fried a few to completely convince myself to replace them :-)...

megaman 
Copper - Posts: 385
Copper spacespace
Joined: June 24, 2008
Location: Montana, United States
Posted: September 26, 2008 at 8:47 AM / IP Logged  

If you were using test tones and they were new speakers, you probably did not hurt them if the smell was faint.  The voice coil heated up to the point where the coating they use to secure the coil to the former began to outgas that strange and unusual smell.  If you play the speaker at moderate volumes, and it distorts very easily, where it didn't before, then it's blown.  But the fact that you smelled something coming from the speaker, doesn't mean that the speaker is blown.

At my shop, across the street there is a power transformer on the power pole.  Whenever we get a little bit of inclimate weather, you get the whiff of electronics burning.  Then Murphy's law takes over and you never get the whiff unless you are connecting an amp, or just turning on something.

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