Panasonic 3.1-Channel Soundbar System with 6-1/2" Wireless Subwoofer for $299.99 shipped.  Here is a screenshot for your reference.  It features 300W total system power (60W x 3; 120W subwoofer in RMS mode), two 3-way front speakers, a downfiring 6-1/2" 1-way wireless subwoofer, and more.  Most places have it for about $450.