I'm not surprised they put 'thin' organ voices on the 2600 and 2400. One of the big selling features of the KN7000 was the new organ sounds, so they wouldn't want to put those on their smaller keyboards. The manufacturer's are careful about what features they take off, in hopes you'll spring for the top of the line.

How much do the smaller keyboards weigh?

The KN7000 is heavy! At least for me it is. I love it, but I don't want to carry it! I broke down and bought a PSR550 which is only 19.2 pounds, or half the weight of the KN7000. The KN can stay at home, and I'll take the Yamaha. It's a nice keyboard for the price, I'm been pleasantly surprised with it so far, I'm still in the learning stages though.

Marilyn