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In Reply to: Power Guard ? ..What if I switch to smaller speakers posted by hifi heretic on January 5, 2013 at 19:58:47:
... or move this amp to room where I have stand mounted bookshelf speakers...How will power guard prevent me from blowing them to bits??
Blowing them to bits? You mean like this?
Funny, if not unreal scene. You will still not damage them with clean power. If you were to overdrive tiny speakers, you would clearly hear it before you burned out a voice coil. Virtually all modern speakers can handle 200 closely monitored watts with no trouble. The ferrofluid cooling of the drivers in your speakers was available thirty years ago. I have no worry whatsoever of damaging the smallish stand mount Polk speakers in my HT with the 300 watt per channel amp. Last night, the wife and I watched Red Tails at pretty loud levels. My ears drive the volume control, not a bouncing needle that really can't respond to peaks quickly enough anyway.
For the past three years, I've used my vintage system with a 200 watt per channel Threshold amp driving a double pair of late 70s Advents for the neighbor's Halloween party for their teenaged daughter. It was driven WIDE OPEN for three hours using her compressed MP3 content. Gain control at full clockwise position and LED ladders near or hitting 0 db. They do fine. One year, however, the old woofer surrounds on one pair were shredded to pieces. A $20 re-foaming kit was overdue for them anyway. :)
Have you ever damaged a speaker before? In over forty years, I sure haven't. When I was a teenager, I tried once but failed. I hooked up a small, cheap five inch cone to the Audire power amp I had at the time and ran it wide open. The amp put out a dynamic 100 watts and the speaker was rated for about three. I thought I might get something resembling the Back to the Future scene. Didn't happen.
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Follow Ups
- RE: Power Guard ? ..What if I switch to smaller speakers - E-Stat 06:49:36 01/06/13 (5)
- meter accuracy - hifi heretic 07:45:45 01/06/13 (4)
- RE: meter accuracy - E-Stat 08:01:22 01/06/13 (3)
- RE: meter accuracy - hifi heretic 10:30:02 01/06/13 (2)
- RE: meter accuracy - abs1 11:33:06 01/09/13 (0)
- Thanks for the reply -nt - E-Stat 10:39:50 01/06/13 (0)
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