How does there series go? The higher numnber the better the sub? And where can you buy them online?
500 series - entry level sub- around $70
1000 series - a bit better than 500, the 8" is //content.invisioncic.com/y282845/emoticons/yumyum.gif.0556df42231b304b9c995aefd13928a8.gif, SQL - $100-?
2500 series - comparable to most mainstream subs, SQL - around $200-?
3500 series- better than most mainstream subs, SQL - $370-?
9100 series- hardcore sq sub, SQ - $650-?
9500 series- super sub, SQL - $500-?
9900 series- hardcore spl sub, SPL- around $800
9900z series - crazy super spl only sub with huge a$$ neo magnet, around $5000
(yes i mean five thousand dollars)
you can contact dd directly if you don't have a dealer in your area, factory direct price