Will do mapman! I am sure as the speakers and the new class D amp break in, the sound gets better and better. I just have to be patient. From what I have heard, both devices need extended break-in time.
After reading the comments about folks adding a super tweeter to their speakers, I was a little concerned that the top end of the Ohms is somewhat dull but It definitely is not the case.
Oh BTW, there is plenty of bass available with the 10" driver for me. I have no need or desire to add a sub. Even for HT duty, there is ample bass.
I think, these speakers are bottoming out at about 35-40Hz which is fine.
Not being able to go down to 20Hz is not a problem for me at all.