Currently, I am running 2 subs, both with stereo inputs. I had to split the signal at the 1050 with a y-adapter, run one interconnect to each sub and then another splitter at each sub. The second splitter is not 100% required, but with my Velodyne subs, the auto turn on feature works more consistently with both of the inputs being given a signal. If your sub either is more forgiving or you don't use an auto turn on feature, you can use either input on the sub. My set-up is running both subs in mono. Matthew Hill is correct that the only way current Outlaw product which allows stereo subs is the ICBM, which does add cost (but additional functionality besides the true stereo sub outputs) and should be evaluated before purchase. The PDF manual for the ICBM is pretty good and not too long of a download.

S.