У вашего броузера проблема в совместимости с HTML5
Integrating a subwoofer into your home theater or stereo provides big sound and an immersive experience, but choosing the right size is not easy. They’re not exactly a one-size-fits-all proposition, and they’re also a little confusing to shop for if you don’t know where and how to look.
Martin Logan Dynamo 800x available here: https://bit.ly/2tS9y5o
If you’re Michael Bay, you probably want something big powerful, but if you’re just trying to reduce stress on your prized pair of speakers, maybe a small 8-inch subwoofer will work.
Here is you guide for choosing the right size subwoofer for your home theater.
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