Thanks dnj!

I have listen to all videos and must say each arranger has strong and weak sides.

The s950 has very good sounds specialy organs,but over all it sounds as if I was listening to a cd , no life.

The pa900 very live sounds but often styles sounds like a juxtaposition of instruments all played at the same level.

The BK-9 has the best styles, a lot of nuances, even if the balance between style and solo wasn't set right. Best piano, drums and bass of all but realy not as good as the two others for the other instuments.