thank you all for your kind reply. I will surely check some Ketron product. if I ask all of you to compair between to models--yamaha psr-3000 and korg pa50sd, which 1 is best according to you and why? I know that, everyone have some different view points and requirements. but I think, this topic will help me to choose the right 1 for me. waiting for your kind reply.
kind regards