Actually, since this Audigy card has the external BLACK BOX, the inputs are 1/4" not the 1/8".

However, I wanted both L&R out of the keyboard to go into ONE 1/4" LINE IN on the sound card black box. I can only record from one input line at a time... and with the L&R out of the keyboard, that would give me STEREO sound... but I'm not sure if there's such a thing that I want that would take the L&R output cables/connectors out of the keyboard and merge the sound into ONE INPUT JACK on the sound card black box.

Maybe what I want is something that is not possible. Would that be correct?