Adorama has the Yamaha 150W Stereo A/V Receiver (model no. R-S500BL) for $250 with free shipping. Features 75W x 2 high power output, 40-station AM/FM random access preset tuning, speaker A, B or A+B selection, subwoofer out.
Amazon has the Anker SoundCore Dual-Driver Portable Speaker (Black) for $24 with free shipping on $25+ or with Prime. List price: $30. Compatible with all Bluetooth-enabled devices, connect to your smartphone or tablet from up to 66 feet away, built-in mic for hands-free calls.
Has excellent Amazon Reviews.
eBay has the SONOS PLAY:1 Compact Wireless Speaker (Black or White) for $134 with free shipping. Features two custom-designed drivers with dedicated amplifiers.
Amazon has the NHT SuperZero 2.1 Mini-Monitor Speaker (Single, Gloss Black) for $68 with free shipping. Retail price: $120. Has excellent Amazon Reviews.