View Full Version : Building a Ported box for 2 12" XTR-1's

11-14-2006, 09:15 PM
I have 2 Orion XTR series 1 or 2 subs from back in the day. I want to put them in a Rec. ported box, maybe a regular ported box. Orion suggested

Ported enclosure: 2.75 cu. ft.
Port Diameter (inside diameter): 4 in.
Port Length: 8.5 in.

Speaker specs:
Fs : 23Hz
Qms : 9.05
Qes :0.47
Qts : 0.44
Xmax : 0.30 inchs.

Please give me ideas and if you dont mind explain what frequency I might want to build it too. This will be going in a Suburban, so I have plenty of room to make the box in.

Thanks in advance for the help.

11-15-2006, 06:10 PM
Anyne have any ideas...? Would like to get after the box build, but need some ideas for you "Pros".

I have not done much car audio for years and I was always the Electronics guys and let a buddy build the boxes. So he always calulated the boxes that were needed.

11-16-2006, 09:14 AM
I used to deal with the xtr pro's on almost a daily basis at a shop I used to work at . Let me do some digging and see if I have some of my old enclosure dimensions for them still :)