I auditioned the LS22 some years ago and thought it dreadful. The ARC SP9MkIII which I still own was far preferable. The Reference products mentioned by others all sounded great to me, but were too dear. I'm sorry I can't comment on the SP11, except to say that it's the same hybrid era as the SP9 and has a great reputation - they still sell for high amounts in Australia. Cheers, Rob.