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Enclosure Design & Construction
Building NEW ported box for my OLD Alpine gear
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<blockquote data-quote="R1C3R" data-source="post: 8714630" data-attributes="member: 680780"><p>I’ve had some stuff laying around for years that was recently busted out to play with. It’s been fun and I’ve tried a couple different setups. I’ll give you a brief of what I’m working with.</p><p></p><p>Car is a 99’ Honda Civic sedan. Amp is Alpine MRD-M1005 (mono, 700w @4ohm, 1000w @2ohm). 4 gauge power & ground. Head unit is Alpine CDE-143BT. Sub is Alpine SWR-1241D (12” DVC 4ohm 300w RMS).</p><p></p><p>Okay now I’ll explain how it is currently. I have the sub wired to 8ohm so I’m assuming it’s getting 350w. It’s mounted inverted on a 1cubicFT wedge style sealed box. Honestly it sounds great and is setup to run it hard for a long period of time. However if I ever get a flat tire I’ll have to dismount the sub to even get to box out HAH. I could just switch back from inverted, but this box is going into my winter car using a different sub/amp/deck. So I’m going to create my own custom ported box. </p><p></p><p>Now I’ll mention I do already have all of the wood/screws/glue. LOL I’m repurposing and old entertainment center that has been unused at my mothers house for years now. It is 5/8”, but the top and bottom pieces will be 3/4”. Doubled up in front too. </p><p>As for box dimensions, it can be no taller than 15” and I’m going with 17” wide and 21” deep. This will give me the trunk space that I want and it’ll sit just behind the driver side rear seat, so when I fold down the passengers side rear seat (the smaller section) the box will not be in the way. Which is also right where the port will exit on the side out of the back of the box. </p><p></p><p>My calculation tell me it’s about 1.75 cubic ft. The port area is at a minimum of 21.7sq” which is tuned for 30hZ making it about 31.5” long & 1 7/16”x 13.75”</p><p></p><p>I’ve drawn up a rough draft... Let me know what you think. Am I missing something here? I believe it’ll work out perfectly for what I want. I listen to mostly newish rap & lots of different types of EDM, some hardcore/metal, and a bit of new-age indie/alternative. </p><p>Anyways I’m digging this old Type R. It’s like a daily beater you know, but I don’t think it’ll ever die. I love that my whole audio setup is exactly era specific to the car too. It’s my summer car. Gotta have my bumps![ATTACH=full]22962[/ATTACH]</p></blockquote><p></p>
[QUOTE="R1C3R, post: 8714630, member: 680780"] I’ve had some stuff laying around for years that was recently busted out to play with. It’s been fun and I’ve tried a couple different setups. I’ll give you a brief of what I’m working with. Car is a 99’ Honda Civic sedan. Amp is Alpine MRD-M1005 (mono, 700w @4ohm, 1000w @2ohm). 4 gauge power & ground. Head unit is Alpine CDE-143BT. Sub is Alpine SWR-1241D (12” DVC 4ohm 300w RMS). Okay now I’ll explain how it is currently. I have the sub wired to 8ohm so I’m assuming it’s getting 350w. It’s mounted inverted on a 1cubicFT wedge style sealed box. Honestly it sounds great and is setup to run it hard for a long period of time. However if I ever get a flat tire I’ll have to dismount the sub to even get to box out HAH. I could just switch back from inverted, but this box is going into my winter car using a different sub/amp/deck. So I’m going to create my own custom ported box. Now I’ll mention I do already have all of the wood/screws/glue. LOL I’m repurposing and old entertainment center that has been unused at my mothers house for years now. It is 5/8”, but the top and bottom pieces will be 3/4”. Doubled up in front too. As for box dimensions, it can be no taller than 15” and I’m going with 17” wide and 21” deep. This will give me the trunk space that I want and it’ll sit just behind the driver side rear seat, so when I fold down the passengers side rear seat (the smaller section) the box will not be in the way. Which is also right where the port will exit on the side out of the back of the box. My calculation tell me it’s about 1.75 cubic ft. The port area is at a minimum of 21.7sq” which is tuned for 30hZ making it about 31.5” long & 1 7/16”x 13.75” I’ve drawn up a rough draft... Let me know what you think. Am I missing something here? I believe it’ll work out perfectly for what I want. I listen to mostly newish rap & lots of different types of EDM, some hardcore/metal, and a bit of new-age indie/alternative. Anyways I’m digging this old Type R. It’s like a daily beater you know, but I don’t think it’ll ever die. I love that my whole audio setup is exactly era specific to the car too. It’s my summer car. Gotta have my bumps![ATTACH type="full"]22962[/ATTACH] [/QUOTE]
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Building NEW ported box for my OLD Alpine gear
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