Glassing a new box.... Maybe

[netzero 10+ year member]

Ok so im getting two RE SE 12"s and am considering what my next box will be. I would like ported. So something like 4~4.5 cubes tuned to 32Hz. I could do the standard L port or pvc, but i'd like to try fiberglass if possible. One concern i have though is the boxes volume. Is there a way to find the internal volume Before building it, or what not?

What i was thinking was building it a little on the big side, then filling it with packing peanuts and then taking them out into a square box and calculating the rough volume from that. Only thing is, how close do you think that would be? And with pvc ports, how much would it throw off tuning if the volume was off a bit? Thanks

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[Powerbass1267 10+ year member]

I would say 4.5 is alot on the big side

 

[adam212 10+ year member]

as far as the fiberglass thing...

their is stuff you can buy at a paint shop that is called sprayable gel coat

just put it in a gun and spray the entire box and barely sand with 320 on a DA until its smooth then paint it and clear it

its an easier route than fiberglass and it gives the same effect

 

[adam212 10+ year member]

4.5 isnt big for 2 12's

and thats before sub and port displacement... i would assume

 

[netzero 10+ year member]

Ya before displacements and everything. Ok thanks i'll look into that stuff. Anyone else have any tips or time/money saving ideas?

 

[bonesninja 5,000+ posts]

Ya before displacements and everything. Ok thanks i'll look into that stuff. Anyone else have any tips or time/money saving ideas?

actually 4 cubes is optimal and thats after port and subs displacemen t.

 

[netzero 10+ year member]

actually 4 cubes is optimal and thats after port and subs displacemen t.

That's what i was thinking.