+1...If I understand correctly, the F1 would be the lowered powered version of the SD800, and the SA450 is an LMII with additional features as you mentioned above.
That's the way I understand it.
The use of the class D power amp in the SD800 and the F1 allows for either higher power in the same box size (e.g., the SD800 versus the SA450) or the same power in a smaller box size (e.g., the F1 versus the LMII).


