Monoprice once again offers its Monoprice Premium 5.1-Channel Home Theater Speaker System, model no. 10565, for $183.99. Coupon code "FEB20" cuts it to $163.99. With free shipping, that's $20 under yesterday's mention and the lowest total price we've seen for this system. 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. Deal ends February 3.