hello, it wanted to know which the main differences of the model one CTK-900 and of WK-3200 of casio (aside from the 76 keys, wheel, and other accerios external) I want to know if internally this two keyboards are equals the two have 600 tones 160 rhythms 224 tones of user etc and although there be various previous models al WK-3200: the WK-1200, WK-1250, WK-1300, WK-1350 WK-1500,WK-1600, WK-1630,WK-1800, WK-3000 Sounds and other things the CTK-900 and WK- 3200 they are exactly equal?, that recommend thanks.

The 900 does not have a slot for a smart media card, no modulation wheel or modulation button so if you want to play organs and have a leslie fast and slow effect you will have to use the + and - buttons to attain this effect (you also have to go into effect edit to find this function) where on the 3200 it is already set to work with the modulation button.
Also, for midi file playback, the 3200 has 16 dedicated track buttons under the screen for muting and soloing the 16 tracks and the 900 doesn't have these buttons, you have to scroll around to acheive this.
For $100.00 more, the 3200 is the better value unless you can't fit the 76 key in your space.
George Kaye
Kaye's Music Scene
Reseda, California

I have to agree with George. Save a few more bucks and buy the 3200. Sure they have the same sound set, but for the extra money you'll get so much more keyboard with the 3200. The CTK will sound nice, but you'll lose the pitchbend wheel, modulation button, smart media storage, ect. It's well worth the extra money.

Squeak