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Message: <blockquote data-quote="BrianChia" data-source="post: 3139239" data-attributes="member: 576132">Yeah you probably won't blow the sub with that amp, but you may bottom it out at low frequencies if your enclosure is too big. There is no need to use a lower current fuse. When the sub starts to bottom out you will be able to tell and there won't be any danger to the sub if you don't turn it up past that point. Just set the gain properly and/or use the subsonic filter on your amp to limit overexcursion.If you want good sound quality then a Qtc of 0.7 should work fine and the car's interior will boost the low end and give you a more flat response. There's no reason to make it bigger than it has to be. If you make the box bigger it will roll off the lower frequencies a little slower and shallower, lowering the F3. But as stated by Trixter you will reduce your power handling and may lose some tightness in the response.</blockquote>

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