A:AnswerThere is no output connection for a subwoofer. You could use an audio extractor to get signal to a subwoofer, but that won't automatically adjust the subwoofer volume with the soundbar volume.
A:AnswerNo true. As long as there isnt a gap in the frequencies covered by the individual speakers, you can have mis-matched brands. You will however want your Front Right and Left to be the same speaker (brand and model) and your rear Left and Right, to be the same. But your center channel and subwoofer can be any brand, even if the brands dont match.
