Keyboard Korg SV-1-73 Black. The SV-1 Stage Vintage Piano offers the most comprehensive array of keyboards electro-mechanical, transistorized, tape, analog, and early models ever assembled to date in one instrument. Created using the RX (Real eXperience) technology Korg: each sound is a detailed and authentic re faithfully capture the full range of expression and dynamics of the original. But for Korg, even that is not enough. The SV-1 also provides access to pedal effects, amps, cabinets and studio techniques that gave these sounds their original personality. As a result, provides instant access to the sounds that have defined the usual keyboard performance. 73 Keys RH3 (Real Weighted Hammer Action 3) velocity sensitive. Finished in black color.