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<blockquote data-quote="steveswell" data-source="post: 6115433" data-attributes="member: 612067">Thanks for the reply, Sarthos.&nbsp; It&#039;s the subwoofer amp, USB2100, bridged to a 4 ohm Pioneer 350 watt RMS sub enclosed.&nbsp; Does that mean it&#039;s running at 2 ohms?&nbsp; I believe it&#039;s stable at that resistance.&nbsp;&nbsp; I can&#039;t help but think that the several hours I pumped the volume at 75 percent amp gain did her in finally.&nbsp; Lucky the others managed to survive!I was able to return the amp and have it repaired at no charge.&nbsp; Waiting for it to be shipped back, but since bought an Alpine V12 with slightly less power, but nice enough.&nbsp;&nbsp; I&#039;ll keep the bass boost down and watch the gain from now on.&nbsp; By the way, the AUX input works perfectly, that was a million dollar tip, thanks again!&nbsp; : very happy :The only complaint I have now is the wide-ranging discrepancies between source material- so many cds are simply junk and other inherent flaws in many recordings (upload quality, compression, digital harshness, etc.) tend to be magnified with an upgraded system, but the good stuff sounds that much better.I&#039;m also hoping that the Diamond Audio s500s (silk tweeters) smooth out after break-in.&nbsp; Shrillness fading but still loud even after switching&nbsp; to -12db on the crossover.</blockquote>

[QUOTE="steveswell, post: 6115433, member: 612067"] Thanks for the reply, Sarthos. It's the subwoofer amp, USB2100, bridged to a 4 ohm Pioneer 350 watt RMS sub enclosed. Does that mean it's running at 2 ohms? I believe it's stable at that resistance. I can't help but think that the several hours I pumped the volume at 75 percent amp gain did her in finally. Lucky the others managed to survive! I was able to return the amp and have it repaired at no charge. Waiting for it to be shipped back, but since bought an Alpine V12 with slightly less power, but nice enough. I'll keep the bass boost down and watch the gain from now on. By the way, the AUX input works perfectly, that was a million dollar tip, thanks again! : very happy : The only complaint I have now is the wide-ranging discrepancies between source material- so many cds are simply junk and other inherent flaws in many recordings (upload quality, compression, digital harshness, etc.) tend to be magnified with an upgraded system, but the good stuff sounds that much better. I'm also hoping that the Diamond Audio s500s (silk tweeters) smooth out after break-in. Shrillness fading but still loud even after switching to -12db on the crossover. [/QUOTE]

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