10 Cubic feet for 18”?

[Evyn1]

Can I use 10 Cubes rather than the manufacture recommendation :5-6cubes?

My current 3:1 Bandpass 4th order is too song selective within its Bandpass.

I’m trying to convert the shell to Bass reflex 33HZ. But it’s 10Cubes without any displacement.

Can I use 10 cubes or should I make it shallow to 6?

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[Boominburban]

Actually, at 10 gross, after port displacement, some bracing, and sub displacement, I'd bet you're around 7-8 net already. Which depending on your sub model, may be a little on the large side, just watch on the low notes, make sure it doesn't bottom out, before you really pour the sauce to it.

 

[Evyn1]

I’m finding new songs that weren’t hitting on my DD712. Bass reflex 4order. The bandpass is selective to 70+ songs and plays them better than other designs I’ve tried.

Might just run the Bandpass for what it’s worth.