Amazon has the Marshall Acton II Bluetooth Speaker (1002483) for $200 with free shipping. List price: $280. Features 50Hz to 20kHz frequency response, 2 tweeters, 3 drivers, 1 woofer, Bluetooth 5.0, with range up to 30 feet, 3.5mm audio input.
Amazon has the Polk Audio Blackstone TL1 Speaker Center Channel (TL1) for $62 with free shipping. List price: $79. Features two (2) 2.5" drivers, a 0.5" silk dome tweeter & injection molded cones. The APERIODIC-TUNED REAR PORT delivers bass extension and boosts the audio on a shelf or mounted against the wall.
Amazon has the KEF Q150 Bookshelf Speakers (Q150B) for $300 with free shipping on $25+ or with Prime. Features 5.25" aluminum woofer, 2-way speaker system, 51Hz to 28kHz frequency response, 8 ohms nominal impedance.