Thank you for your input.
Where does the 2426 start ro roll off with this design? Will I need a tweeter? For comparison, in the JBL 4430 the 2426 starts to roll of at 16kHz if I remember right. I don't feel a need of a tweeter listening to it.
I guess I will try the 2227 and the ME150 (2227 core with an aquaplassed cone and approx. 96dB) and see if I like them, otherwise I'll go for the 2226.