Hello all!

I am curious about the basic "behavior" (dispersion? imaging?) differences among the following driver arrangements: TM, MT, TMM, MMT, MTM.

I think I understand the basics between MTM and TMM such as what drivers handle what frequencies and why. I get that MTM is more symmetrical, minimizing floor and ceiling bounce.

1. With TM and TMM, why do some people put the bass drivers on top instead of below the tweeter?

2. What is the difference between how the MTM images and the TMM?

3. Which arrangement would be better for near-field listening? Which arrangement would be less sensitive to moving around the room? Laying in the floor?

4. When would one ever want ceiling reflections?

5. Which of these arrangements are more consistent with the point source ideal?
Is this important for imaging?


I will probably have better questions than these later (with some assistance). Thanks guys (and girls)!