Amazon has the Vizio M-Series All-in-One 2.1 Immersive Sound Bar with 6 Speakers (M213AD-K8) for $141 with free shipping. Has Dolby Atmos, DTS:X audio technologies, 98dB sensitivity, and Alexa compatibility. Bonus Savings: Get 20% cashback ($28) with a Prime Card. Also available w/ 20% cashback via Prime Card:

• VIZIO V-Series 2.0 Compact Sound Bar (V20x-J8) for $55
• VIZIO 2.0 Soundbar w/ Dolby Atmos (SV200M-08) for $78
• VIZIO V-Series 2.1 Home Theater Sound Bar (V21x-J8) for $130 
• VIZIO M-Series 5.1.2 Immersive Sound Bar (M512a-H6) for $350
• VIZIO Elevate SE 5.1.2 Soundbar, Wireless Subwoofer (SL512X-0806) for $400
• VIZIO Elevate 5.1.4 Sound Bar (P514a-H6) for $550