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Old 28th August 2005, 06:32 PM   #1
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Default Loadspeakers relay protection

I am looking for a good loadspeakers protection circuit. It might be with relays. It is for hi power amplifier outputs.


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Old 29th August 2005, 03:28 PM   #2
Bose(o) is offline Bose(o)  Canada
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Location: Ottawa, Ontario, Canada
I know Partsexpress sells some ready-to-buy relay circuits for speakers. The power ratings are for approx. 8-ohm loudspeakers and are actually switched based on current.

I've been on the chip-amp, solid state forums and no one really knows how to protect speakers. It's interesting, I think, I'm still working on it. I don't mind a sort of, archaic system, as long as I can get it to work. Anyway, Good Luck and tell me what you find, I'm very interested.
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Old 30th August 2005, 05:21 AM   #3
hongrn is offline hongrn  United States
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Take a look at this kit from PE:

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Old 30th August 2005, 09:03 PM   #4
K-amps is offline K-amps  United States
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The PE kit is only good if the amplifier fails. It will not protect the drivers if the amplifier is working normal... for that itis almost always better to custom design a protection circuit....
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