Ok, so I did a bit of research on transmission lines. In layman's terms, to my understanding, it is a technique to mitigate the sound waves being generated by the back side of the speaker cone, which are undesirable sounds. Does that sound about right?
Does it allow the woofer speakers to play lower frequencies than, by comparison, playing in a sealed box because the woofers won't be operating against the air pressure contained in the box?
Also, I'm still mapping out how I'm going to put this all together as a 5.1 system and I've got one more question, regarding a sub unit. Aesthetics are very important to me for this setup, and I don't really have a place for a sub box anywhere. I will, however, be building a nice large, square coffee table for this room. I already have a 2" thick solid mahogany top that I will adapt for this table, so it will be nice and solid. I am considering purchasing one of your sub unit kits and essentially building the box, to your specifications, into the table. In theory, the sounds from a sub should be non-directional if the sub is only playing the lower end frequencies, but is there any issue with having it placed close and center to the primary listening position?
When I listen to music, I prefer pure simple stereo and I won't even use the sub if the AV-3's live up to expectations, which I'm sure they will. For music I prefer really crisp bass, in general. The sub will be solely for movies, and I'm willing to sacrifice the "best" location in order to conceal it into my room nicely. Is this a terrible idea for any reason, or should it work out ok? Is there a best direction to orient the sub unit in the table?
I'm looking forward to the AV-3 kits, by the way. One significant factor in my deciding to purchase these is the excellent service you provide your customers through your forums here. You are running a top notch business, at least to my expectations.
Rick.