b-pillar build, what would to use?

[BassAndBeer]

WOOD* what type of wood should I use and how many sides of the box should I double baffle? I will be using threaded rod for bracing. I went with a flat wall, slot ported tuned to 28hz, 43 cubes. this is my first wall. i will be glassing the inside of the box and adding 45 angles on each corner. plenty and plenty of bracing, as 18s will shred any box up without improper bracing

Click to read more...

 

[Massive spl]

Birch wood. Double or triple wall all the way around and 3-5 layers on baffle. And is that 43cubes before of after displacement? Your going to be like just free airing the subs. 43cubes is huge.

 

[BassAndBeer]

43 before displacements, 32 cubes net. so 11 ply birch, 3/4 or 1 inch?

Birch wood. Double or triple wall all the way around and 3-5 layers on baffle. And is that 43cubes before of after displacement? Your going to be like just free airing the subs. 43cubes is huge.

 

[Massive spl]

11ply 3/4" will work nicely. How many inches of port?

 

[BassAndBeer]

484 in of port, 14.8 sq per. ascendant audio recommends it be between 12 and 16 so I think it should be good. what do you think?

 

[Massive spl]

Way to big. I wouldn't go over 300" of port.

 

[BassAndBeer]

going by AA's rule of 12-16 sq in per, that's what came up. it should be good

Way to big. I wouldn't go over 300" of port.

 

[hispls 5,000+ posts]

You shouldn't even consider less than 3 layers on any side and go as big as you can on the port. It's far easier to shrink a port of needed than to make it wider down the road.