In my limited experience, although I've been impressed with some speakers that have utilized rather noticeable rake angles, I've found no improvement by changing that on my own speakers. But I have found most speakers sound best to me a bit higher up than is commonly recommended. (I'm just under 6')
As the M-T-M design of the D48R may limit the vertical flexibility of speaker/seat placement even more, you may find it worthwhile to try it out. (The advantage being less overall room reflections, I believe.)
As the M-T-M design of the D48R may limit the vertical flexibility of speaker/seat placement even more, you may find it worthwhile to try it out. (The advantage being less overall room reflections, I believe.)