The solid-state Bryston and the hybrid SP9 mate very well in my experience. I had a Bryston 3B amp with my SP9, and then moved up to a Bryston 4BSST which I still have, and might always have. My speakers were Vandersteen 2Cs which gave a lovely, warm sound, very comforting and musical. However, I moved and needed a speaker with a smaller footprint so began a speaker search. I had never considered monitors until a dealer in Toronto let me hear PSB M2 Platinum series which blew me away. They worked very well with the Bryston-SP9 combo, adding enormous energy and life to my system. I no longer have the SP9 but the PSBs are belting out Patricia Barber as I write. I am now planning to upgrade, for some reason, but it will take a much more expensive speaker to beat the M2s. So PSB M2 Monitors, highly recommended and a great bargain.