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<blockquote data-quote="NytFlyt" data-source="post: 8716581" data-attributes="member: 680572">Thanks!I can’t speak for anyone else’s, but I made some efforts to allow as much bass energy as possible to make it forward.&nbsp; That&nbsp; 1/4” thin “beauty panel” on the back of the sub box that makes it look “sealed up” was perforated with about 200 1/2” holes before covering it with thin grey carpet - it’s basically a big decorative “speaker grill” - so it’s not stopping anything.&nbsp; There is also about a 1 1/4” gap between the top of that beauty panel and the rear deck lid (ya gotta lean down and look upward to see it).&nbsp; My rear deck had a factory 8” hole that was there for a factory subwoofer - so I opened that up (and made a grill cloth cover) to let bass from the trunk pass through to the cabin.&nbsp; I also made 1” spacers for the rear seat latches so there is a 1” gap between the top of the rear seats and the rear deck when the seats are upright and latched.&nbsp; But more that anything else, I think just the fact that low bass simply travels through anything and everything is the general concept working - plus I’m not SPL oriented this time around at all.&nbsp;&nbsp; I built several like this many years ago and you couldn’t tell any difference in the sound with the beauty panel installed or removed.&nbsp;&nbsp; If bass can go through back seats, it can go through that thin perforated trim piece.Here is what it looks like without/with the decorative beauty panel trim piece -[ATTACH=full]23312[/ATTACH][ATTACH=full]23311[/ATTACH]</blockquote>

[QUOTE="NytFlyt, post: 8716581, member: 680572"] Thanks! I can’t speak for anyone else’s, but I made some efforts to allow as much bass energy as possible to make it forward. That 1/4” thin “beauty panel” on the back of the sub box that makes it look “sealed up” was perforated with about 200 1/2” holes before covering it with thin grey carpet - it’s basically a big decorative “speaker grill” - so it’s not stopping anything. There is also about a 1 1/4” gap between the top of that beauty panel and the rear deck lid (ya gotta lean down and look upward to see it). My rear deck had a factory 8” hole that was there for a factory subwoofer - so I opened that up (and made a grill cloth cover) to let bass from the trunk pass through to the cabin. I also made 1” spacers for the rear seat latches so there is a 1” gap between the top of the rear seats and the rear deck when the seats are upright and latched. But more that anything else, I think just the fact that low bass simply travels through anything and everything is the general concept working - plus I’m not SPL oriented this time around at all. I built several like this many years ago and you couldn’t tell any difference in the sound with the beauty panel installed or removed. If bass can go through back seats, it can go through that thin perforated trim piece. Here is what it looks like without/with the decorative beauty panel trim piece - [ATTACH=full]23312[/ATTACH] [ATTACH=full]23311[/ATTACH] [/QUOTE]

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