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<blockquote data-quote="DylanBeatz" data-source="post: 6809466" data-attributes="member: 598533">I have 2 12&quot; Alpine Type-R&#039;s being powered by a Rockford Fosgate T10001BD. Well anyways just yesterday while driving my car with the bass up all the way, the bass suddenly started sounding alot different and quieter. I turned the volume down and then it started sounded normal again. I turned it back up, and it sounded fine for a few seconds till it started sounding wierd again. I parked to go to my trunk to listen to the subs. They sound fine until i turn it all the way up, then it starts sounding like a rattling, horrible sound. Both subs do it. I don&#039;t think they&#039;re blown because they still work and sound fine at low volume. What is wrong? Maybe i should make a vid and film them so you guys can see what I&#039;m talking about. I set the gain with a DMM while playing a -2 db 50 hz test tone. I have the bass boost at 0.Cliffnotes: My subs sound fine but then start sounding horrible when i turn it up. When i turn it back down they start to sound fine again. What&#039;s wrong?</blockquote>

[QUOTE="DylanBeatz, post: 6809466, member: 598533"] I have 2 12" Alpine Type-R's being powered by a Rockford Fosgate T10001BD. Well anyways just yesterday while driving my car with the bass up all the way, the bass suddenly started sounding alot different and quieter. I turned the volume down and then it started sounded normal again. I turned it back up, and it sounded fine for a few seconds till it started sounding wierd again. I parked to go to my trunk to listen to the subs. They sound fine until i turn it all the way up, then it starts sounding like a rattling, horrible sound. Both subs do it. I don't think they're blown because they still work and sound fine at low volume. What is wrong? Maybe i should make a vid and film them so you guys can see what I'm talking about. I set the gain with a DMM while playing a -2 db 50 hz test tone. I have the bass boost at 0. [B]Cliffnotes:[/B] My subs sound fine but then start sounding horrible when i turn it up. When i turn it back down they start to sound fine again. What's wrong? [/QUOTE]

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