[You must be registered and logged in to see this image.]if your talking about the same american bass speakers above.. 1 of them requires 267.2687 ft cubed
So 4 or them would require 1069.0748 ft cubed for a perfect enclosure. Building them smaller than that would equal not using them to their full potential.
This would equal having a box built 10 foot long, wide and tall or (cubed).I did a calculation on them, and it looks like they are better for sealed enclosures.. cause at 28hertz and a QeS of 0.656 is comes out to an EBP of 42.68
You can find more stuff about this at this link David
[You must be registered and logged in to see this link.] and at here
[You must be registered and logged in to see this link.]You can figure volumes at this site..
[You must be registered and logged in to see this link.]The specs for them is below...
SIZE(IN) 15
IMP 4
RDC 2.8
LEVC(MH) 4.602
FO(Hz) 28
SD(msqM) 76.45
BLTM 12.329
QMS 4.792
QES 0.656
QTS 0.577
n(%) 0.598
SPL(Db) 93
VAS(L) 134
CMS(Um/n) 161.2
MMS(g) 204.6
VC 2
MAGNET(OZ) 100
XMAX(+/-mm) 10
POWER(RMS) 350
POWER(MAX) 700
F RANGE(Hz) <300
MAGNET DEPTH(MM) 192
MAGNET DEPTH(INCH) 7.6
Found here...
[You must be registered and logged in to see this link.]* Ultra Thick Chrome-Plated Deep Bottom Basket.
* NT Multilayer Foam Surround for Better Stable Linear Exclusion.
* Stiff and Rigid non-press Paper Cone.
* Inverted Dust Cap further increases Cone's resistance to flex under Pressure
* Dual Black Mirror Tinsel Lead Wires.
* Sleeved High Power Tinsel Lead Wires to resist Lead breakage.
* Blackened Motor Parts for Superior Heat Dissipation & Long Life
* Hi-Temp Anodized Aluminium Voice Coil Bobbin with Nonex Protection.
* Ultra-Length Voice Coil for High excursion without Distortion.
* Hyper extended Pole Piece Increases Accuracy, raises Induction.
* Special Cooling Vents of Deep Bumped Back Plate to Increase Power Handling.
* Uni-Rubber Gasket for Airtight Seal in Mounting.
* Rubber Magnet Boot Protects Magnet.
* Single Voice Coil 4 OHM
* Single Voice Coil
* 100 Ounce Magnet