I have two PE 250W plates amps, and will be buying either two BPD 1201's or 1001's. I want to make sonosubs with them. Im at a loss with my design though. I want a really low extension but I also want a good transient response. I was thinking about doing one EBS with a 1201 and a sealed one for the 1001 maybe. This will also determine the design for the mains. I will be running a couple 8" midbass/mids in a two way MTM. I haven't decided whether to do a ported EBS or sealed for those as well. These will be in an apartment room until I graduate, so size sort of a concern but its way down on the list. Any suggestions?