Thanks for your ideas, Bernie. I always find it a great help to know what other members think. It is interesting about the pianos. I also have a PSRS900, and I will be listening carefully to the pianos in them. The best piano sound so far is from my Roland. I am not entirely happy yet. The Arranger backing from the KN sounds a little muddy through the Bose to me, but I will keep trying. You are right - I am super critical, but that is just me. Cheers. Jean.