I am running LSi9s, LSiC, and FXs with 3 monoblocks from Outlaw and I have FXs sitting on Yamaha HTR-6090. I also have one Martin Logan Dynamo hooked up via "sub-out" from AVR. I am moving and my room will be expending: 13x30 with listening area about 13x16. The question is: Should I buy second Dynamo ? And maybe hook it up straight from my first Dynamo's "multi sub-out" port ?