planning on getting 4 hifis

[gmalero2000]

if i build a box what should the specs be?

[gmalero2000]

here are specs theres no Cu ft specs or nothin

Features

* 12-Inch DVC and SVC Subwoofer
* High-Energy Magnet
* For Ported or Sealed Enclosures
* Black Polypropylene Cone
* Poly-Mica Cone Damping
* Chrome Speaker Frame
* Multi-Layer High-Temp VC
* Front-Plate & Voice-Coil Cooling
* Integrated Spider Tinsel-Lead Design
* Hi-Excursion Rubber Surround
* High-Strength Suspension Material
* Push & Insert Wire Terminals
* Anti-Resonant Rubber Magnet Boot