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Old 18th May 2006, 03:00 AM   #1
palesha is offline palesha  India
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Default Current limitor

My friend is blowing woofer from his 2 way active pro speaker. The amplifier doesn't hv limitor circuit. How to solve this problem?
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Old 18th May 2006, 03:33 AM   #2
Eva is offline Eva  Spain
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Stop using audio equipment far above the volume level that it can reasonably handle

The best limiter has a pair of ears stuck in it, and a hand to turn the volume knob.
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Old 18th May 2006, 08:02 AM   #3
AndrewT is offline AndrewT  Scotland
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Well said Eva.
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Old 18th May 2006, 12:31 PM   #4
palesha is offline palesha  India
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Giving advice to others is simplest thing in the world. But helping them is really important.
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Old 18th May 2006, 01:45 PM   #5
Did it Himself
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By educating him to use his equipment properly you will be doing him the biggest favour you can.
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Old 18th May 2006, 02:13 PM   #6
anatech is offline anatech  Canada
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Hi palesha,
The advice you have been given is the correct advice. I agree 100%

Physics. The voice coil can only get rid of so much heat, no matter what you want to believe they are rated for in power. I have personally seen many pro loudspeakers burned out due to excessive power. They will only take so much.

-Chris
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Old 18th May 2006, 03:04 PM   #7
poobah is offline poobah  United States
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This is supposed to be about audiophiles...

I can't recall any driver that doesn't like **** waaaaayyyyyy before it starts to burn.

Am I alone here? Is this thing on?



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Old 18th May 2006, 03:40 PM   #8
anatech is offline anatech  Canada
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Hi poobah,
I'm sure the "CLACK" of the voice coil striking the back plate wasn't a hint either.

I always say, if you burn out a woofer, you deserve it!

-Chris
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Old 18th May 2006, 05:19 PM   #9
palesha is offline palesha  India
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I found the following project. It looks to be useful. Anybody hv built it?
Project 52 : Audio Amp Output Power Limiter
Rod Elliott (ESP)
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Old 18th May 2006, 07:35 PM   #10
anatech is offline anatech  Canada
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Hi palesha,
Good thought, but it will not help if the amplifier is not driven into clipping. Also, if you are opening speaker relay contacts, they will burn under load.

An over easy compressor may help the situation. That will limit the levels going to the amplifier. Of course, if your friend turns it up - poof!

-Chris
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