I've made the trip down to Radio Shack and bought a 1/8" stereo go 1/4" mono converter plug (part #274-348). I also bought a 1/4" mono to 1/4" mono patch cable. I've retried to calibrate the sound card with the following combinations and the following results:
1/8" stereo (stereo line out) to 1/4" mono chan 2 in:
Here is the result for 1/4" channel 1 mono input (on the front) to 1/4" channel 1/L output (on the back):
Here is the result for 1/4" channel 2 mono input (on the back) to 1/4" channel 2/R output (on the back)
And just for fun, here is the mic in to headphone out for the internal soundcard:
I'm assuming that the calibration files I'm getting for the MobilePre are still not what I should be expecting. Am I missing something still?
Thanks.
JCD