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Message: <blockquote data-quote="cha0" data-source="post: 3109925" data-attributes="member: 571056">well i saw about a month ago that someone was selling sauna tubes that were inclosed with bondo or glass that fit some drivers. i was wondering if there are any real advantages in using something cylinrical rather then a boxed design. heres my thoughts...im a construction worker. get a MDF ring to fit a 10 or 12. get a tube that fits the outside and inside diameret of the MDF ring. that will form the top of my tube making the thinkness of the walls whatever the thinkness is on the rings. im thinking like an inch to an inch and a half. then i can build a frame for the bottom to be flat. bacisly making a cylinder shape with one open end with the MDF ring so i can mount the driver. the tubes will then be filled with cement. what is more rigid then a cement cylinder? if i want to go even further i can wrap it all in glass if anyone things it would make it stronger. but i can get some REAL high PSI concrete from work. like the grade used for highway brighes. you will be able to run this over with a semi and it woundnt flex. i could even get real crazy and put some thin rebar in it. this thing would be a tank.then i thought about how to make a port. obviously being the newb i am im trying to think of how to slot port it, then i realized all i would have to do is drill out a hole when its done and put some aero ports in it. duh, easy fix to my porting problem.so what do you guys think? obviously the only disadvantage i can see is weight. it will weigh about 80 lbs without bar in it. probably about 100 if i get nasty and put rebar through it.  thougths, comments, concerns?i think a 9510 or 12 would hit HARD in this...</blockquote>

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