box size per Specs's

[07BronzeFuz 10+ year member]

Guys can you tell what size box a subwoofer needs per its specs"? Like these

RMS Power Handling : 450 Watts

Peak Power Handling : 900 Watts

Frequency Response : 20Hz - 500Hz

Sensitivity : 89.9dB @ 1W/1M

Mounting Depth : 5.75" (133mm)

Cut-Out Diameter : 11.37" (289mm)

PARAMETERS

Fs : 29Hz

Qms : 6.1

Vas : (Liters) 76.4

Qms : 6.1

Qes : .43

Qts : .40

Qtc : .70

Nominal Imp (Ohms) : 4 ohms + 4 ohms

SPL 1w/1m (dB) : 89.9

SPL (2.83V/1m) : 95.1

X-Max (mm) one way : 9

Pe - RMS : 450 Watts

Pe - Maximum : 900 Watts

Click to read more...

 

[DNick454 10+ year member]

Well, it'd be better if we knew the manufacturer and make of the woofer in question, usually it's told on the website. But seeing that it's a 12" woofer, anywhere in the range of 1.25-2 cubic feet should satisfy it generally if you're looking for a ported enclosure. 1 cube even would be a decent choice if you're looking to go sealed, although you could go bigger too, it's pretty hard to F up a sealed box, no matter what woofer.

 

[07BronzeFuz 10+ year member]

its the old school PB es12d Evolution woofers. I cant find anything on them

 

[DNick454 10+ year member]

Ahh I see why. It's hard to find info on PB's new stuff, I can only imagine their old merchandise.//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif But like I said, there's generally a happy medium for "most" 12" woofers alike. Obviously each one is different, but somewhere in that margin will sound good.

 

[07BronzeFuz 10+ year member]

any idea's on a ported box. I have about 700 watts to run to the pair. May face the subs up and fire the port to the front or rear.

 

[DNick454 10+ year member]

Why subs up in a trunk car. I'm assuming it's going in the ford fusion in sig? I would say subs and port facing back for a trunk car unless you want to seal them off facing forward, but then you can't play it when you have people in the car and the seats are up.

I'd say something like 1.5-1.75 cubes per sub with 40-50 sq. in of port area tuned to whatever your preference is.