Reply to thread

Message

<blockquote data-quote="Eddie Bloom" data-source="post: 8161095" data-attributes="member: 628171">i&#039;ll keep it simple...96 impala ss, with a single JBL GTI 12 ported off of about 300 watts. sounds great, hits low, almost perfect. pop the trunk, +6-12DB&#039;s of gain...everyone says its some cancellation issue, well no $%&amp;amp;*. anyone have an idea how to fix it?yes, there is a port thru on the rear deck lid, yes we have played with phasing and eq. the sub is pushed towards the rear deck and side firing, changing positions made little to no difference.the difference in output is dramatic. easily 12 DB of gain with trunk open. so please don&#039;t tell me what&#039;s wrong, we know what&#039;s wrong, tell me how to fix it.someone suggested to me that the trunk itself is acting like a bandpass enclosure but still even if that were the case then it should give me the boost with trunk closed, not open as that would mimmic an enclosure that wasn&#039;t sealed properly or had leaks...thanks!!</blockquote>

[QUOTE="Eddie Bloom, post: 8161095, member: 628171"] i'll keep it simple... 96 impala ss, with a single JBL GTI 12 ported off of about 300 watts. sounds great, hits low, almost perfect. pop the trunk, +6-12DB's of gain... everyone says its some cancellation issue, well no $%&*. anyone have an idea how to fix it? yes, there is a port thru on the rear deck lid, yes we have played with phasing and eq. the sub is pushed towards the rear deck and side firing, changing positions made little to no difference. the difference in output is dramatic. easily 12 DB of gain with trunk open. so please don't tell me what's wrong, we know what's wrong, tell me how to fix it. someone suggested to me that the trunk itself is acting like a bandpass enclosure but still even if that were the case then it should give me the boost with trunk closed, not open as that would mimmic an enclosure that wasn't sealed properly or had leaks... thanks!! [/QUOTE]

Verification