Comment to the Mods: if this is a thread better located in the Subwoofer forum, please advice and accept my apologies. I've already got the 70's, which get a good bit of discussion on here, so I thought this might be a good place to ask.
Onkyo TX-SR606 AVR
Polk Monitor 70 Series II Floorstanding Fronts (40 Hz Min Response)
Polk TSi-Series CS10 Center (to be delivered today) (53 Hz Min Response)
Polk RM-6751 Rears (100 Hz Min Response)
Room is 20'x24', but ~65% of the "back" of that room has no wall; the floor simply transitions from carpet to hardwood for the Kitchen/Dinette area, and the physical wall is actually 40' away.
I'm currently using the subwoofer that came with the Polk RM-6750 6-speaker set., and I'm looking to upgrade. As you can see above, I've already upgraded the Fronts (and the improvement was significant), and will have the new Center installed sometime this week.
I would think things like Timber Matching are not a concern for a Subwoofer the way it is for matching your Fronts with your Center? Is there any reason why buying a Polk subwoofer would be considerably more advantageous than just looking for a good deal on any good sub in my price range?
I'm not looking to rattle the walls with boomy bass, but I do hope to have a little *punch* when watching an action flick. Since the Monitor 70's go down to 40 Hz, I don't expect this sub to play much of any role in music listening, but if it were, I'd be more concerned about *accuracy* than *boom*.
For budget, I'm very comfortable around $250, but could come up to as much as $400 if given a good enough a reason.
Any general guidelines and/or specific recommendations for what to pair with my setup?