boomer28

Thank you for the advices. I've been thinking about your comment and to begin i will get just one 18" and maybe i will get another one if i need more bass. Anyway i have tried the 12" klipsch sub of reference serie and it was not enough for me. The 15" sub of klipsch was unfortunately not available at my local dealer.

I have 2 klipsh rf3. Anyway i like the sound of these speaker but now i want more powerful sub. I want to buy two 18 inch subs because i want to put them stereo. Is it possible to do something like this in a room of 400 square foot? Where should i locate all the speakers? Have you heard about people doing that kind of "crazy" project and what they think about it?