dual 15 competitors fiberglass box spl dd atomic ppi - $699.00
2 DD DIGITAL DESIGNS SUBWOOFERS 10" USED!!!! - $799.99
Digital Designs DD 9918 18" HUGE SPL Winning Sub - $899.99
10" DD Audio 9010 dual voice coil Subwoofer w/ CF cone! - $200.00
What you describe may have more to do with how they are wired than the box they're in, unless the box was ported. Putting the subs in the wrong box can damage subs.
The subs are not all that bad, they are not the best, but there are other things you can do to improve the output of the system. Shop around for a shop that is good at high output enclosures. up to 80% of the sound your subs can make depends on the b...
Yes, they are assembled. The only exceptions I know is some of the boxes from Wal-Mart.