Thank you for this list JimWilson. I'm on the hunt for a good budget sub and appreciate the work you've done to narrow down my choices.
Yamaha RX-V473 AVR
Toshiba 32" 1080P LCD TV (a $300 cheapie from Best Buy)
Klipsch RF 52 II towers
Klipsch RC 52 II center
Sony HTIB surrounds (from a 10 year old HTIB, they're temporary)
Sony SA-WMSP4 sub (from the HTIB, also temporary)
This is in my bedroom and needless to say, the sub needs to be replaced (so do the surrounds, but those can wait).
I'm looking for a sub that'll play deep on a budget (under $300). Out of the subs on the list, I listen to the BIC F12 on a nearly daily basis, and its low end extensions leaves a lot to be desired IMO. Down to 35Hz it holds its own, but anything below 30Hz is mostly inaudible. Using that as my reference, I'm looking for similar output, with deeper extension.
I live in an area where demoing the subs isn't an option, so I have to make the decision based on internet research.
I don't want to sound like I'm asking to be spoon fed, but which of the subs in the OP should I look into most for deep extension? I'm more than willing to do research on my own, but a gentle push in the right direction would sure help.