RD800 as expander ?

[rgazel]

Hi,
(sorry for my english :(

I've recently bought a RD-800, I'de like to play the internal sounds with an external keyboard. I've plugged the MIDI out of the 2d keyboard in the MIDI in of the RD800, but I can't heard the sounds.

It's juste possible to play the RD800 with the 2nd keyboard when the 2 keyboards are plugged via Cubase and my soundcard.

To summarize, I would like to play on stage with both the 2 keyboards, without a computer.

Anyone should give me any suggestion ?

Thank's :)
Rémi