Connect two Audio FX Mini Boards together?

Hi there. I have just ordered an Audio FX Mini Sound Board and it should be with me in a couple of days. It might be a possibility that I could need another 10 sound files so I am considering buying another one of these boards. Is it possible to merge the output from both of these boards into one audio cable? Thanks very much.

You need a mixer. You can build one with some op amps and a few resistors and capacitors. Google will show you a schematic.

@yellowdog thanx :¬)