Hi Folks , When i purchased my KN7000 .I also ordered the 4 expansion boards at the same time . I'm glad i did !!

In my opinion they are very good .

The expansion board with the female soprano soloist sound is excellent and a much sort after sound effect .

I say to any one still wondering to buy the expansion boards or not "hurry up and get them whilst you can "

regards to you all .........Giovanni