Loadspeakers relay protection

shmuelb5 · 28th August 2005, 06:32 PM

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

Thanks

Shmuel

Bose(o) · 29th August 2005, 03:28 PM

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.

hongrn · 30th August 2005, 05:21 AM

Take a look at this kit from PE:

http://www.partsexpress.com/pe/showd...number=320-225

K-amps · 30th August 2005, 09:03 PM

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....

28th August 2005, 06:32 PM	#1
shmuelb5 diyAudio Member Join Date: Aug 2005	Loadspeakers relay protection Hi, I am looking for a good loadspeakers protection circuit. It might be with relays. It is for hi power amplifier outputs. Thanks Shmuel

29th August 2005, 03:28 PM	#2
Bose(o) diyAudio Member Join Date: Dec 2001 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. __________________ ERTW 4 life! "the day has 24hours. If that is not enough take the night."-Roemhild

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30th August 2005, 05:21 AM	#3
hongrn diyAudio Member Join Date: Mar 2005 Location: Placentia, CA, USA	Take a look at this kit from PE: http://www.partsexpress.com/pe/showd...number=320-225

30th August 2005, 09:03 PM	#4
K-amps diyAudio Member Join Date: Nov 2003 Location: Indiana	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....