MM 651 cooked today.
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Road Warrior
Joined: Jan 2008
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From: Land of 10,000 lakes
MM 651 cooked today.
Just got back from a ride of 50 miles on the freeway. I was cruising along at 75 to 80 when my right side fairing speaker started making some gawd-awful noise. I had the bass set at two bars and the treble at 4 and the volume was at 4 or 5. I shut off the stereo and headed home. I removed the outer fairing and checked the wiring which appeared fine. I removed the polyfill and the magnet on the back of the speaker was very hot to the touch. I removed the speaker and physically it looks normal but it sounds terrible and gets red hot to the touch. I have basically 4 or 5 hours with the ss 520 and the mm651's. and I am not too happy right now.
Outstanding HDF Member
Joined: Apr 2009
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From: FL
Just got back from a ride of 50 miles on the freeway. I was cruising along at 75 to 80 when my right side fairing speaker started making some gawd-awful noise. I had the bass set at two bars and the treble at 4 and the volume was at 4 or 5. I shut off the stereo and headed home. I removed the outer fairing and checked the wiring which appeared fine. I removed the polyfill and the magnet on the back of the speaker was very hot to the touch. I removed the speaker and physically it looks normal but it sounds terrible and gets red hot to the touch. I have basically 4 or 5 hours with the ss 520 and the mm651's. and I am not too happy right now.
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Road Warrior
Joined: Jan 2008
Posts: 1,995
Likes: 2
From: Land of 10,000 lakes
tweeter cone is solid but at a slight angle. I don't remember if it was like that when installed. The switch for freq was on f which I believe is flat or fixed??. I had the bass turned down to 2 bars which I had mentioned earlier but my avc was set on 3 bars. I purchased the polks from sonicelectronix which I see is not an authorized internet dealer. therefore no warranty. What a crock of .......
My gain was set at appox 12:30 or 1, but I kept the volume down low, I was listening to an MP3 disc and really wasn't hearing any distortion but ....... who knows???
My gain was set at appox 12:30 or 1, but I kept the volume down low, I was listening to an MP3 disc and really wasn't hearing any distortion but ....... who knows???
Last edited by springer 03; Jun 13, 2013 at 09:48 PM.
Road Master
Joined: Mar 2011
Posts: 988
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From: Ashevegas
tweeter cone is solid but at a slight angle. I don't remember if it was like that when installed. The switch for freq was on f which I believe is flat or fixed??. I had the bass turned down to 2 bars which I had mentioned earlier but my avc was set on 3 bars. I purchased the polks from sonicelectronix which I see is not an authorized internet dealer. therefore no warranty. What a crock of ....... My gain was set at appox 12:30 or 1, but I kept the volume down low, I was listening to an MP3 disc and really wasn't hearing any distortion but ....... who knows???
My gain was set at appox 12:30 or 1, but I kept the volume down low, I was listening to an MP3 disc and really wasn't hearing any distortion but ....... who knows???
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
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From: East of the Sun, West of the Moon
springer_03.. if the tweeter stalks are not perfectly straight can you please post pics. I've got an open case with Polk and Sonic about this and what apparently (to me anyway) is a manufacturer defect in that they're either using the wrong type of glue to hold these stalks in place or they're not using enough of it.
I'm going to start moving all these "i toasted my MM651 speaker" threads into one thread so they're easier to find. I spent an hour on the phone Wednesday with the customer service manager, Justin at Sonic going through these posts and showing what pics were posted.
I'm going to start moving all these "i toasted my MM651 speaker" threads into one thread so they're easier to find. I spent an hour on the phone Wednesday with the customer service manager, Justin at Sonic going through these posts and showing what pics were posted.
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Road Warrior
Joined: Apr 2010
Posts: 1,832
Likes: 3
From: North Georgia
Nutz,
If he can't, I'll post pics of "drooping tweeders" when I get back to the house. Upon closer inspection, the ENTIRE BASE has moved (melted.)
Beav
If he can't, I'll post pics of "drooping tweeders" when I get back to the house. Upon closer inspection, the ENTIRE BASE has moved (melted.)
Beav
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Road Warrior
Joined: May 2008
Posts: 1,802
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From: Salt Lake City, UT. Dushore, Pa.
[QUOTE=springer 03;11408913]the polyfill and the magnet on the back of the speaker was very hot to the touch. QUOTE]
Could the polyfill be causing some of the heat issues?
Could the polyfill be causing some of the heat issues?