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Eclipse 87101.4 10" Ported box check my numbers
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<blockquote data-quote="MellowYellow" data-source="post: 8015989" data-attributes="member: 642291"><p>I don't have a current box for this sub. Last time it was installed was a couple of years ago.</p><p></p><p>Why got for ported when it's recommended for small sealed? Because it seems to plot a much flatter graph when ported as apposed to sealed. Like i said, I've never had a ported and im basically just looking to build this as an exercise.</p><p></p><p>Previously with this sub i've tried 0.587, 0.65, 0.75, 0.85 all sealed, with and without polyfill in each. Im a bit of a tinkerer. The sound from all of those boxes were similar and in each case the polyfill helped with the low end. I was never totally pleased with the sound. It always lacked in the lower ranges and then became overwhelming higher up 60-80hz. This was in the trunk of a gbody Regal, so that may also be a function of the cabin gain.</p><p></p><p>3" pvc might not be great for ports, but I have some. I can also get some 4" if need be.</p><p></p><p>This box is only a start. A proof of concept if you will since i've never build a ported box. I figure im probably going to have to build 2 or 3 variants before im pleased. Im looking to learn through the experience and then maybe sometime doing a custom fiberglass enclosure on one side to retain as much trunk space as possible.</p></blockquote><p></p>
[QUOTE="MellowYellow, post: 8015989, member: 642291"] I don't have a current box for this sub. Last time it was installed was a couple of years ago. Why got for ported when it's recommended for small sealed? Because it seems to plot a much flatter graph when ported as apposed to sealed. Like i said, I've never had a ported and im basically just looking to build this as an exercise. Previously with this sub i've tried 0.587, 0.65, 0.75, 0.85 all sealed, with and without polyfill in each. Im a bit of a tinkerer. The sound from all of those boxes were similar and in each case the polyfill helped with the low end. I was never totally pleased with the sound. It always lacked in the lower ranges and then became overwhelming higher up 60-80hz. This was in the trunk of a gbody Regal, so that may also be a function of the cabin gain. 3" pvc might not be great for ports, but I have some. I can also get some 4" if need be. This box is only a start. A proof of concept if you will since i've never build a ported box. I figure im probably going to have to build 2 or 3 variants before im pleased. Im looking to learn through the experience and then maybe sometime doing a custom fiberglass enclosure on one side to retain as much trunk space as possible. [/QUOTE]
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Eclipse 87101.4 10" Ported box check my numbers
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