I love the "Yada yada yada"...is it Irish? Mongolian? Makes me think of the little guy in Star Wars....what was his name? Yoka? Yoko? No, that was JL's wife.

A-ha! Now I have it....Yoda!

That old brain cell is still workin'.

Diki, my friend, I am disappointed that an enterprising young (relatively speaking) man like you, wouldn't have looked up the PSR-S900 manual at this site.

http://www.yamaha.co.jp/manual/english/result.php

But, all that aside, I have at least found the link at Yamaha's manual site for you.

Perusing the manual you will find (amongst other clever Yamaha implementations) that there is a BALANCE button...a real button.

Pressing it opens a screen that has 7 virtual sliders...usually the main screen displays this at default (very important), but if you were doing something else, besides looking at MILFs, the button allows quick access.

Using the up/down buttons under the relevant virtual sliders (see Gary Diamonds post above for the "virtues of virtual") the player can either raise the STYLE volume OR raise the volume of R1 (in this case)...it is also easy to press two buttons to raise R1 and R2....you get used them...like the drawbuttons on the Nord C1.

I hope this explanation satisfies your rabid (meant as a compliment) curiosity.

Ian