I have hardwood floors–do I really have to use the big honkin spikes on the bottom of the cabinet?
For best sound, spikes are recommended. There are a couple of techniques you can use for protecting your floors: (a) “supporting discs”-metal discs with dimples in them where the spikes go, (b) felt pads, available at most hardware stores, or (c) a piece of carpet cut to size to go underneath the subwoofer.