What Sound Bars accept the Power On command from Directv Streaming remote?

I have tried two Vizio sound bars and the Directv Streaming remote will NOT turn them on.  Once you use the Vizio remote to power them on - the Directv remote works fine and controls volume. It will also turn OFF the Vizio - it just won't turn the Vizio sound bar ON.

Any suggestions of any lower-cost sound bars that work with the Directv Streaming Remote?

Thanks