Re: power adapter... will it explode?
From: William R. Walsh (newsgroups1_at_idontwantjunqueemail.walshcomptech.com)
Date: 09/22/04
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Date: Wed, 22 Sep 2004 23:56:18 GMT
Hi!
> I have a pair of speakers that need a 13V and 2A DC power adapter or wall
> wart. I lost its wall wart and found a wall wart for another device, which
I
> have no idea what its for.. it gives out 15V and 400mA DC.
You should consider a bigger adapter. Those speakers might work OK at first,
but as the volume goes up the components inside will be stressed from lack
of power and the power adapter will be stressed since it cannot meet the
demands that the speakers may place on it. Something could go "bang" in that
event, but if you never play the speakers very loudly it may never be a
problem.
If you notice audio distortion at higher volumes that wasn't there with the
proper adapter, something is likely running out of enough "juice" to power
the load satisfactorily.
> The power adapter I found said on its back that it must not be used with
any
> other device except..[some brand name]...
Lots of equipment says that. It's there for a few reasons--namely to
dissuade idiots from getting inside (No User Serviceable Parts Inside) or so
the manufactuer potentially relieves themselves of some liability if someone
does something stupid with a part of their product.
> Now, I used it with the pair of speakers and it worked!!! Now, i'm
worrying
> that this configuration could cause it to explode or something....
An outright explosion is very unlikely. However, if the speakers are played
loudly the adapter may overheat and fail while trying to keep up with the
power demands. This could also stress components in the speakers, leading to
the potential of an eventual failure.
William
- Next message: Mike Kennedy: "Re: power adapter... will it explode?"
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- In reply to: Jim Rex: "power adapter... will it explode?"
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