Well, I wondered if that was the case. I couldn't hear a difference between either setting, but I am surprized Bose Quality Control let that happen.
I hadn't really noticed the duplication until this past weekend when I had time to play with some different settings for my upright bass. I was playing with the David Gage presets and also trying other various combinations with both my WAV4 and Kay upright. I'm continuously looking for "the sound", like other bass players.
I can't find the mellow tones on my WAV4, that I get from the old upright. But, I'm sure the string differences play a big part of that. Either way, I have some nice tones playing both through the L1/M2 and T1 combo.