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<blockquote data-quote="trumpet" data-source="post: 8164547" data-attributes="member: 628688">What you have listed is a decent start. You have no sound damping materials budgeted and you&#039;ve got no equalizer beyond what your factory head unit provides. An EQ can come later, but I would skip the rear speakers for now and put that money into vibration damping. A bulk pack of CLD applied to 25% of flat metal or plastic surfaces will help cut down on vibrations. There are several other ways to address vibrations, rattles, and outside noise transmission which you can read about at <a href="http://www.sounddeadenershowdown.com" target="_blank">Sound Deadener Showdown</a>.Unless his modeling included a check of the predicted group delay and he found it to be inaudible, I would consider using a sealed box instead of a ported box. I switched from an incredible self-powered ported JBL enclosure to a high excursion sealed 12&quot; sub because the bass thump didn&#039;t sound fast and tight enough on fast metal songs.</blockquote>

[QUOTE="trumpet, post: 8164547, member: 628688"] What you have listed is a decent start. You have no sound damping materials budgeted and you've got no equalizer beyond what your factory head unit provides. An EQ can come later, but I would skip the rear speakers for now and put that money into vibration damping. A bulk pack of CLD applied to 25% of flat metal or plastic surfaces will help cut down on vibrations. There are several other ways to address vibrations, rattles, and outside noise transmission which you can read about at [URL="http://www.sounddeadenershowdown.com"]Sound Deadener Showdown[/URL]. Unless his modeling included a check of the predicted group delay and he found it to be inaudible, I would consider using a sealed box instead of a ported box. I switched from an incredible self-powered ported JBL enclosure to a high excursion sealed 12" sub because the bass thump didn't sound fast and tight enough on fast metal songs. [/QUOTE]

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