JL Audio Sub hookup??

[rottikid]

I'm thinking of upgrading my subwoofer to a Fathom f112v2. I will be using it in my 2 channel system and Home theater system. I have C47 preamp and MC302 Amp with Focal Sopra No 2 speakers. I also have a Marantz AV8801 processor. I use the C47 preamp in pass thru so I can use the speakers and amp with the Marantz Processor for my front channels.

I would like to do the following hookup. Use the Balanced inputs Left & Right of the JL Audio Sub to the Balanced Output #2 of the C47 preamp. I also want to use the unbalanced RCA (mono) input to the Marantz Processor Sub output My thinking is that when using the McIntosh C47 preamp in pass thru output #2 will be off. Does anybody see any problems with hooking the sub up this way.

The only other way I can think of is using a video switcher. Like A/B. Run the sub to switcher and both preamps. I would rather not have the switch in the system.. what are your thought.
Thanks
Jim