Do you have the freedom to put these two subs you speak of where they will work best or are you limited to a few locations.
Multiple subs simply help fill in the gaps of LF sound, and spread it out so across a typical multi seat LP you will have the same response. Wts, there are three choices, the Geddes method of three subs, the Welti-Devantier method of two or four subs, or a modifyed method that i used. You can read it in my signature thread.
You should begin to aquire some measurement gear so you are not going into this blind. It seems that alot of science ends at the door, where it should actually continue. Setting up multiples is just about impossible without the proper measurement gear. With proper gear it is as simple as can be.
I dont have an opinion on any of these subs, just the methodology on setting them up. I really produced some great results using multiple subwoofers. good luck andpost your results...
As of Jan 2017, im still looking for (1) Outlaw M-200 mono amp, and a used Marantz 7010