Subwoofers

I've decided to go with two rythmik F12G
powered subwoofers.  I need to set them up through my Quicksilver Line stage preamp.  My question is with one set of outs on the preamp what is the best way to split the signal ? 

Mike 

I use a Media Bridge Y - connector from my PA to each Rythmik F12G sub, an easy and cheap solution to hook up both subs to a PA. 

Anybody have feedback fir me about the Pinnacle Baby Boomer??
It lists power amp of 600W ...BUT doesn't state RMS.
Is it musical?  My speakers need some help down low.  Don't need loud bass ( to bother my apartment neighbors), but a bit more oomph on music ( and films too).

My two rythmik audio subwoofers are arriving today.   My listening room is 
20' long by 14' wide and ceiling is 8' high. 
My gear is on one of the 14' ends.   Anyone have advice about placement? 
As a reminder I'm pairing them with Maggie MG-IIIA's. 

Mike 

Another vote for the Vandersteen 2wq. I use one in combination with my Magnepan 3.7i. It blends seemlessly!