im looking to build a box for 2 soundstream spl 10's. they are real old school and i dont know if anyone has used them or not but what im looking for is to see if anyone has ever built a ported box for these exact subs. i would like to know the box cubic feet and port size you used and what freq you tuned it for. demensions and just some general specs about these subs specifically any help would be appriciated.