Newegg offers the refurbished Logitech Z506 5.1-Channel Surround Sound Speaker System, model no. 980-000430, for $54.99. Coupon code "EMCPAPA84" cuts it to $39.99. With free shipping, that's tied with our July refurb mention and the lowest total price we could find for a refurbished unit by $8. Features include 75 watts RMS of total power, a down-firing subwoofer, 45Hz to 20kHz frequency response, and 3.5mm audio input. Deal ends September 15.

A 90-day 4Wholesale warranty applies.