Recent content by Spud88

Firebird i got the displacement from the alpine website so i don't think they are wrong. I would love someone to design me a box but designing it myself is better for me as i will then have the knowlege for the future so i can design and build more boxes correctly. I have made atleast 4 boxes in...

I have just used the slot port calculator on the12volt.com and have come up with a port length of 26.94 so after i add the port wall volume inside the box it adds up to .75ft^3 as buck said. So will give me a net volume of 2.068ft^3 without taking into consideration any bracing. So if i make the...

Thanks for the replies. The displacement of the woofer is .071ft^3 must of missed out the 0. Also the .218 is the volume of the port wall inside the box. The volume of the port is .560ft^3 so .778ft^3 including the internal port wall displacement. My net volume will be 1.969 ft^3. Now im not...

Thanks for your reply im sure i did take into consideration the woofer displacement in my calculations that i have written down but forgot to post it up, The displacement of the woofer is .071ft^3. When im at work tomorrow i will check what i have written down and correct any mistakes i have...

Hi guys, Im new to the forum and was wondering if anyone can help me. I have got an alpine swr 1242d type r 12" woofer and i want to build a slot ported box for it. I have read loads of posts about making boxes and working out port length and area. From what i have read its optimal to have a...