On the other hand Lowther PM2A´s in 200hz tractrix fronthorns with a 15" sealed woofer can really rock.

This setup plays everything from Metallica to Ben Webster.

I wonder if the muddying goes on in the lower midrange, which would explain why the fronthorns doesn´t sound strained, or if it´s just the great efficiency that´s the key.

Right now I´m building the 7Pi´s, looking forward to big open dynamic sound from an all horn loaded speaker.

And putting the fullrangers in another room for more delicate listening.