Hi all - I've searched the archives and looked at the Axiom newsletters, but I can't quite find an answer to my question on subwoofer connections. I have a separate preamp and monoblock amps, M22ti, and a pair of EP-125s. I want to connect my subwoofers so that a full signal DOES NOT go to my main speakers

- Is this the proper way to do so? - Left preamp out, to L sub's line level in, then run a second interconnect from Left sub's line level out into one monoblock amp, repeat for right side/sub/amp? In other words, I want to connect my subs so that each bookshelf speaker is relieved from having a full audio frequency signal sent to them. Thanks for your time - Chr3is