Very interesting sounds! ... thank you for your help again, today I'll go in a big shop near TORINO (www.merula.com) ... they have many keyboards and I'm gona try others models to be sure to buy here in Milan KN7000

If I buy KN7000 I'm really interesting about WAVE EXPANSION BOARD the last at bottom, guitars etc. I'll send an e-mail to the shop! do u know how much they cost?

Thanks for friendly help!

Marco L.