Hi tubemax
They sound wonderful. If you're looking to build your first coax, I highly recommend the Beta 10CX. It is not only very affordable but surprisingly, is an excellent performer.
I can't comment on full range drivers because I am not really into them. The only driver I tested is the Audio Nirvana AN12CF. The Beta 10CX is far better. You will get Bass and Treble with the 10CX, no problem with that. Coherency is what one would expect from a point source.
Presently, the compression driver I'm using is a Peavey RX14, a 1" titanium compression driver. The frequency response plot is below. Disregard the region below 500Hz. You can see the effects my room has on the bass measurement.
I will be testing it with a Selenium D220Ti later. I should be able to cross at 1,500Hz with the D220Ti.
For more information on the 10CX,
click here.