The most immersive gaming speaker system I've ever tested is $120 off at Amazon
Briefly

Setting up the Arena 9 is a lot less intimidating than the included quick-start guide makes it seem. The main left, right, and center speakers connect directly to the subwoofer, while the rear speakers connect wirelessly (and have their own AC power cable). This simplicity enhances the user experience for gamers who may not be tech-savvy.
The Arena 9 transforms into a home theater powerhouse at an affordable price. If you frequently switch between console and PC gaming, it provides an excellent solution that costs less than traditional systems from brands like LG or Samsung.
Read at ZDNET
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