Monoprice offers the Monoprice Premium 5.1-Channel Home Theater Speaker System, model no. 10565, for $159 with free shipping. That's $21 below our March mention and the lowest total price we've seen. (It's a current low by $61.) The four satellite and the single center speakers each use a 3" mid-range driver and a 3/4" dome tweeter while the powered subwoofer features an 8" down-firing speaker and 200-watt amplifier.