For the most part MDF or fiberglass... not much else can take the pressure except metal and plexi-glass

Ok so lets review...
You have a ported MDF box that fits in the tool well. The sub is a soundstream tarantula 12 inch sub.

You say it doesn't sound good enough...

My guess is that the box is your problem. Wrong port size I would bet.

This is the info on your sub:
T4-12
RMS POWER (WATTS) : 900
VOICE COIL DIAMETERS (INCHES) : 3.0
MAGNET WEIGHT (Oz.) : 200
FREQ. RESPONSE (Hz) : 25 - 1.7k
Fs (Hz) : 36.5
Qes: 0.414
Qms: 3.584
Qts: 0.371
Vas (Ft3) : 1.03/29.27 liters
Xmax (INCHES) : 0.63
SPL (dB) : 89
HOLE SIZE (INCHES) : 11.25
RECOMMENDED ENCLOSURE (Ft3) : Ported 2.2
RECOMMENDED ENCLOSURE TYPE : Vented
AEROPORT DEMENSIONS (INCHES): 4 x 7.5(1)


Now you have to tell me how your box was built.

 

i'll take a picture and post it up, with the measurements of the box.

thanks for you help so far every1!

 

where can you get MDF at? Thanks



D.

 

Home Depot, Loews, local hardware store...