Well, I'm now uncertain if full range signal is being sent to the regular channels in small mode, but I can find out I think. I'll feed the front channels to a regular bass managed stereo input on my receiver and switch between large and small. If the bass suddenly cuts out, I'll know I'm good.

And if it's not good.. well, It seems that the FMODs will be okay too. So, again, I'm good.

Thanks all.