Thanks for the reply, I am not familiar with this model, I found this....
Roland EXR 5 keyboard, 61 keys with touch response, 510sounds, 103 styles, 64 polyphone, cover function, 1,5 MBmemory for songs, music assistent with 100 registrations,16 track sequenzer, digital effects, Midi IN/OUT, USBjack, 2 headphone jacks, floppy disc, loudspeaker 2 x 10Watt, dimensions : 102cm x 35,5cm x 13,2cm, inclusivepower supply

It looks impressive, the psr550 only has 6 watts, does this have tweeters???
Anyone compared it to the psr550 side by side?
I cannot find it in the U.S in a web search though??