eBay has the Harman Kardon HKTS 15 5.1 Home Theater Speaker System for $150 with free shipping. Retail price: $649. Features 35Hz - 20kHz frequency response (-6dB), 8 ohm nominal impedence, 86dB at 1W,10" woofer, center channel has dual 3" drivers.
Amazon has the Aomais GO 30W Bluetooth Speaker (Black, Blue or Orange) for $70 - $37 off with coupon F5SD3299 at final checkout = $33 with free shipping. Comes with AOMAIS Go Bluetooth 4.2 speaker. Has good Amazon Reviews.