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VIZIO sound bars use standard audio cords with RCA type connectors. In VIZIO Sound Bar Systems the components are self-contained and balanced, so the wattage transmitted between each internal component is already configured to give you the maximum Sound Pressure Level. To maintain this balance, additional speakers cannot be added.
Sorry, there was a problem. Please try again later.Honestly, it’s very limited as the Subwoofer is locked to just the two left and right rear speakers. The whole system is good as is TBH so there is no need for an extra bass (subwoofer). But to answer your question, there are two HDMI inputs, one for eARC to the TV and another for whatever. There is also a audio coaxial port and I believe aux. So yea again if you are trying to input more units to the sound bar, you are kinda limited to just the ports that are available as the whole system is already complete.
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