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04-27-2003, 03:41 PM
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#1 of 74 
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More dead/fried Tumults
http://forums.acoustic-visions.com/i...t=ST&f=4&t=487
Details are still somewhat sketchy on this one, but it's pretty crazy that in less than 20 seconds Jeff was able to fry one of his Tumults. He has two. Each was powered from a bridged K2 and they're in 5 cu-ft PR enclosures. He also apparently fried his 2nd one, but he hasn't given any details on how long that took.
It's my understanding that VC's fry/melt from heat. I find it rather hard to believe he was able to overheat a voice coil within 20 seconds.
Seth
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04-27-2003, 03:52 PM
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#2 of 74
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Someone else here fried one as well.....
It\'s better to have loved and lost, than never to have had a good pair of speakers at all !!!
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04-27-2003, 04:31 PM
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#3 of 74
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ouch, i would be really POed a grand gone in 20 sec, damn, i know my limits of my tempest, and i all ways watch the BFD for clipping so i hopfully won't blow mine
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04-27-2003, 05:13 PM
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#4 of 74
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I can understand how it might be hard to detect distortion when the voice coil nears its thermal limits. But unless this happened at a very high level, the driver could have been defective. That would also be understandable. But, I'm guessing Jeff just didn't realize how much sound he was getting. I'm not sure what Adire should do about this.
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04-27-2003, 06:44 PM
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#5 of 74
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Sad story. sorry to hear.
I think the biggest warning is this. XBL2 DOES NOT distort like traditional drivers. Speaking from experience, there is much less distortion in the low frequencies than typical drivers. This makes them seem "quieter" than conventional motors that typically have much higher distortion levels at those frequencies.
One thing to note. In every fried tumult, they were powered with a K2 bridged PER SPEAKER. The K2 puts out a REAL 2500watts RMS this way. this is CONSIDERABLY over the spec.
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04-27-2003, 07:27 PM
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#6 of 74
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yip, i wouldn't put that much power into my box.. im running mine at about 800w, it gets incredible bass and never near its limit.. i think a K2 for a pair of Tumults, not bridged per Tumult, that's crazy..
Craig
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04-27-2003, 08:47 PM
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#7 of 74
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He goes on to say he was playing them loudly and then cranking them up louder for periods of 20 seconds....
Pete
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04-27-2003, 09:27 PM
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#8 of 74
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Hmmmm, I don't think this is the subwoofers fault? Seems pretty crazy going that much over the limit of the sub and driving it that hard.
MOOOOOO
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04-27-2003, 09:55 PM
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#9 of 74
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Quote:
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Someone else here fried one as well.....
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Yeah, I wonder who that idiot was? 
I guess my warnings weren't enough. The low distortion claims of the XBL^2 technology are the real deal. When you hear distortion coming from the driver it's already too late.
Brian Bunge
RAD Home Theater
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04-27-2003, 10:22 PM
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#10 of 74
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I'll bet your skin vibrates faster than a go fast rice burner for that 20 seconds though...
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04-27-2003, 10:35 PM
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#11 of 74
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Brian, I excluded the persons name to protect their identity as well as for the sake of ALL past, present, & future idiots across the board......... 
BTW - did you get that email I sent a bit back?
It\'s better to have loved and lost, than never to have had a good pair of speakers at all !!!
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04-27-2003, 10:51 PM
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#12 of 74
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Chris,
Thanks. I'll take all the protection I can get. Even if it's from down south! I remember getting an email from you. Did I not reply?
Brian Bunge
RAD Home Theater
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