Hello guys, this is my first time asking a question here, mostly just read & try to learn as much as possible. Quick run-down of my system: TV: Sony 42" LCD kf-42we610 DVD: Sony DVP-NS725P Receiver: Harman Kardon AVR-7200 Speakers: Adire Kit281 ported towers I do not plan to use the 7200 as a 6.1 or 7.1 system ever (well, not in the near future, my apt isn't that big), so I currently have 2 channels available to use. I am thinking of adding 4 Aura bass shakers (the 25watt models, partsexpress has them for dirt cheap) to the seating in my living room, for the "added effect" since I have no dedicated sub (neighbors would flip!) Now, my question, Is there a way to setup my AVR7200 to power these bass shakers easily? I've been reading trough the manual, & the unit is capable of using the extra 2 channels for an "extra room system". I *think* (if I'm reading it correctly) I can feed the RCA SUB-output from the 7200 into one of the analog inputs, then select the multi-room option to use that input. If this is possible, then I can lowpass the signal for the bass shakers (they only handle up to 100Hz), & not have unused channels. If anyone has used the multi-room feature & has any comments/idea's, it would be Greatly appreciated. Thanks, & just wanted to give a *thumbs up* to everyone here, you guys are amazingly knowledgable.