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Subwoofers
ported box for 2X 12" kappa perfects
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<blockquote data-quote="GTP091" data-source="post: 8601194" data-attributes="member: 673827"><p>This is mostly an in theory question...</p><p></p><p>Background. I have a 91' Pontiac GTP garage toy and am finally done the car and cabin audio system. Wanting to finally do a proper ported enclosure for the subs. The Grand Prixs of that era have bucket seats in the back with a 'ski' access to the trunk. I've removed this plastic hinged drop down and rebuilt it as a wood frame with Wire mesh covered in box carpet to allow bass from trunk into the cabin as I didn't want to molest the rear deck rigidity. it's about 5" X10"</p><p></p><p>My plan is to build a ported box with subs and port/s facing the front of the car and amp rack on the back(isolated of course) so I don't get much trunk rattle.</p><p></p><p>Mostly my question is 2 round ports or my preferred larger single slot port same as Velodyne? I had a discussion with a very knowledgeable car audio guru/installer years ago that I worked with who insisted that when you install multiple subs that they be sealed off from each other inside the box (divider) and run their own individual ports rather than a shared port even when mounted same side. He insisted this eliminated the minute differences between the sub specs interfering with each other. I never really agreed with him on it so wondering if anyone has any thoughts here. I can go either way in the design prefer shared slot port. but it'll bug me if I don't bounce this off someone else.</p><p></p><p>Im more concerned with deep clean bass than muddy SPL. And also probably over thinking it.</p><p></p><p>MTX 8001 mono block 'd'</p><p></p><p>2 Infinity kappa perfects</p><p></p><p>MTX LSX2 crossover</p><p></p><p>Pioneer 9800 deck</p></blockquote><p></p>
[QUOTE="GTP091, post: 8601194, member: 673827"] This is mostly an in theory question... Background. I have a 91' Pontiac GTP garage toy and am finally done the car and cabin audio system. Wanting to finally do a proper ported enclosure for the subs. The Grand Prixs of that era have bucket seats in the back with a 'ski' access to the trunk. I've removed this plastic hinged drop down and rebuilt it as a wood frame with Wire mesh covered in box carpet to allow bass from trunk into the cabin as I didn't want to molest the rear deck rigidity. it's about 5" X10" My plan is to build a ported box with subs and port/s facing the front of the car and amp rack on the back(isolated of course) so I don't get much trunk rattle. Mostly my question is 2 round ports or my preferred larger single slot port same as Velodyne? I had a discussion with a very knowledgeable car audio guru/installer years ago that I worked with who insisted that when you install multiple subs that they be sealed off from each other inside the box (divider) and run their own individual ports rather than a shared port even when mounted same side. He insisted this eliminated the minute differences between the sub specs interfering with each other. I never really agreed with him on it so wondering if anyone has any thoughts here. I can go either way in the design prefer shared slot port. but it'll bug me if I don't bounce this off someone else. Im more concerned with deep clean bass than muddy SPL. And also probably over thinking it. MTX 8001 mono block 'd' 2 Infinity kappa perfects MTX LSX2 crossover Pioneer 9800 deck [/QUOTE]
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ported box for 2X 12" kappa perfects
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