A:AnswerCable companies are switching to a digital service . You will have to have a company provided cable set-top-box to have access to these channles now.
A:AnswerProbably not as the sound bar replaces the TV being connected to an audio system. If you have an audio system with better fidelity than the sound bar then yes this unit will work and out perform the sound bar...Hope this helps
A:AnswerThe interface box you got from your cable company should provide the needed type of output for your TVs without needing additional conversion boxes.
A:AnswerA DAC converts the digital data into analogue, an amp converts that analogue signal to listenable audio for your headphones. You need an amp too. I'd recommend looking into iFi or Schiit audio; both have budget friendly and high end products for this.
A:AnswerUnfortunately no, it won't work like that, because the input on the converter is the optical side, and the out os the rca side, it only converts that way, not the opposite
A:AnswerIt won't provide Dolby, just PCM, but having said that, the sound does come out on all 5 of my speakers on my sound system, including my subwoofer. Hope this helps.