*cough* mdf works great too *cough*. I used these feet and have had absolutely zero sub walking for the last year and a half on my hardwood floor... http://www.parts-express.com/pe/showdetl.cfm?partnumber=260-772
I stream FLAC to my Oppo BDP-93 > HDMI to 3808 > Internal DAC to speakers, works like a charm. I've used twonky, asset upnp, readynas, and now minimserver - all of them stream to the Oppo without any transcoding.
well, the drivers are NLA from the OEM, so you'll have to decide if the extra $55 is worth it for drivers that are becoming increasingly more rare. Your alternative is to buy new drivers from parts express, which will cost you $344 shipped to get a pair of DA RSS390HF-4 drivers.