Outlaw 1050 with PSB 7PT and LFM-2

Hi,
I have a setup with outlaw 1050, PSB 7PT on the front and an outlaw LFM-2. 7PTs have powered subs which go down to 25 Hz, but i like the LFM-2 along with them. My problem is that there is only one Sub out on the 1050, and the PSB 7PT subs or the LFM-2 dont work that well without the RCA input connections. can anybody tell me whats the best way to connect 3 subs to one sub out? should i use two Y splitters?
thanks
Kumar

Sure, you can use two Y splitters. I would probably put the two PSB's together on the splitter that is attached to one leg of the first splitter so both PSB's get roughly the same signal input level, but you'll still need to dial in each powered sub somewhat separately to balance them all (which would be true even if there were three sub outs on the 1050, of course).