The STF-1 and LFM-2 are similar designs but with different cabinets - they're not identical, and as palmer points out the LFM-2 is rated for an extra 4Hz of depth. The STF-1 was originally launched at the same $300 price point as the LFM-2, but apparently has either been put on sale or had the price reduced recently. Since the STF-1 page lists the price as being "regularly" $299 I suspect that it's just on sale for a while (probably in conjunction with The Home Entertainment Show that HSU had a presence at last week) - and there's certainly no reason for the LFM-2 to go on sale at the same time as the STF-1.