I'm looking for a mid-range arranger keyboard that I can afford, and here in my country there aren't many alternatives.
The only i-series available is Korg iS50. I've heard that this has already been replaced by the newer iS50B, but I don't know what's the difference between the two. If it's a big difference, maybe I'll ask the dealer to bring it in.
The other alternatives are KN1600, PSR640/740, PK7, and old Kawai Z1000. I'm personally leaning toward Korg's and Yamaha's.
Maybe some of you out there could make the distinction much clearer to me. I would like the comparison between iS50 and PSR640 since comparing iS50 to PSR740 would be much unfair...
Opinions about the other models at this range are also very welcome.