I have assembled a couple of the Vance Dickenson designed 10" subs from
Parts Express for friends and they are well worth the $$. The 250W (180W into 8 ohms) mentioned above is the same amp used in the kit. I use this amp in my own subs that use a Rockford 12" driver.
If you go to the web page showing the kits, you can download a spec sheet that will help you design the box and order all the needed parts. With a box of this type you need to properly reinforce the cabinet if you decide to build it yourself.
Titanic 10" powered sub kit Titanic 12" active sub Parts Express also sells a
Dayton powered 10" sub for $100. While not of the same quality as the Titanic 10" and 12" subs, a pair of these for $200 will have decent output in a medium sized room.
