15" fi sp4 box help

[Dexter Chaos 14]

So i have a friend who has two sp4 15's. He is trying to run them in a box that is roughly 4 cubes net after displacement. I keep telling him this is small for them but i could be wrong. His port is external. running it on a bc3500

 

Any recommendations to help him out would be appreciated.

[Stephen93s10 40]

3-5 cubes, per 15 is what it says on Fi's website.

Edited June 3, 2014 by Stephen93s10

[Whatshisface176 1]

I have a single sp4 15 in a 5.5 cu ft box after displacement and it plays great. so yes I would assume that 4 cu after displacement would be to small.

[Julian 641]

That's way too small to be ported, even sealed it would be on the small side.

[Fi 4 life 0]

Wait, 4 or 8 cubes total?

[mccleery3 166]

Yeah, that would be 4cu total net, or 2cu each.

[Fi 4 life 0]

That's too small.