I Need Help Picking a Sub


Hello all. Right now i have put together of a somewhat decent theater system in my small living room. I need help with a sub woofer because i dont know what to buy. I am giving myself a cap of $1400 for something used on audiogon. I have Martin Logan ascent front and center speakers. I have a sunfire pre and 5 channel amp all of which are balanced connections. i am looking at the revelB15 sub or perhaps a velodyne DD series. because my space is tiny i was thinking nothing more than a 8" woofer but someone told me to stick with nothing lower than 10" for clarity. i could use some help from those audio pros out there.
dmf6978
I think you would do well with a REL Strata III sub. They are going for a song now and should fit well with the Logans.
I like the REL subs as well but you need to be carful with differential amps and how they work with the high level (amp output) connections. In most cases you will get a hum through the sub will some varying degree of loudness. It drove me nuts and I eventually went with a sub that worked best with line level inputs (Focal Electra 1000)