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<blockquote data-quote="hispls" data-source="post: 8715454" data-attributes="member: 614752"><p>Can we see pictures of the vehicle? Pics of the vehicle with the box in? </p><p></p><p> What nominal impedance are you running those subs? Are you metering on the dash sealed DB Drag style or some other method?</p><p></p><p>I'd say if you said your goal was 150 you could probably find that moving things around or testing the other SPL gain tricks but 155 is going to take a lot of work without throwing more power at this. </p><p></p><p>First issue I see is that the box is too small by half. Try 10 cube net 20" port per cube 17" port depth then shorten the port a little at a time until you stop gaining (your peak may change so test test test and keep notes of what you changed and your peak freq and number). That said, 20 square inches per cube may be impractical, you may have to sacrifice port area if it's just too big to fit on your box without crowding something or whatever. </p><p></p><p>[MEDIA=youtube]WfmOWMcGY2I[/MEDIA]</p><p></p><p>One of the members here who I let borrow some of my subs over the winter put up some good minivan numbers in his minivan type thing. Subs and port forward (right up to the b-pillar) also is known to do big numbers in no-wall builds so may be worth testing.</p></blockquote><p></p>
[QUOTE="hispls, post: 8715454, member: 614752"] Can we see pictures of the vehicle? Pics of the vehicle with the box in? What nominal impedance are you running those subs? Are you metering on the dash sealed DB Drag style or some other method? I'd say if you said your goal was 150 you could probably find that moving things around or testing the other SPL gain tricks but 155 is going to take a lot of work without throwing more power at this. First issue I see is that the box is too small by half. Try 10 cube net 20" port per cube 17" port depth then shorten the port a little at a time until you stop gaining (your peak may change so test test test and keep notes of what you changed and your peak freq and number). That said, 20 square inches per cube may be impractical, you may have to sacrifice port area if it's just too big to fit on your box without crowding something or whatever. [MEDIA=youtube]WfmOWMcGY2I[/MEDIA] One of the members here who I let borrow some of my subs over the winter put up some good minivan numbers in his minivan type thing. Subs and port forward (right up to the b-pillar) also is known to do big numbers in no-wall builds so may be worth testing. [/QUOTE]
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