Subwoofers and Merlins

Thanks gentleman for the responses. Dgarretson, could you explain a bit more to me about the set-up of integrating the BBAM with the subwoofer and how to determine setting the LPF a 30hz with a 12db/octave slope?

Are you setting it there because of room acoustics and proper integration? Is there other reasons?

As you can see, I am new to this subject of a subwoofer but most intrigued, so any help would be appreciated!

Tmiddle, beauty of a system by the way. I bet it sounds fantastic. How is it intergrating a sub with your room placement? What struggles did you come up against and how did you work with those?

Thanks

Very well put. Thanks.

JL Audio fathom. What do like about that sub? One of the things that impressed me about the Vel DD was it's supposed ease of set up. Do you not think it is an ideal setup with the Merlins because of the crossover limitations at 40Hz? Can you explain crossover to me more precisely?

How does the JL Fathom compare to you in this realm?

Bobby,
No I do not know first hand nor am I assuming I'll need a sub. I am just gathering opinions for personal knowledge from folks here who have definatative and time tested experience with a product I am interested in.

Also, since i currently own monitors, one of the places I am interested in going with my system is a subwoofer and possibly the merlins, so I was wondering how the sub I may soon own would integrate with a future speaker change.

Currently, I do not own a pair of Merlins.

Dgarretson, yes that is the question isn't it?! Thanks!