I can't speak for other, perhaps higher cost, receivers, but the Viewsat Ultra 2000 has a Dolby Digital output. You'll need a receiver so-equipped to decode the soundtrack. Given its vintage pop music videos, surround sound isn't required. Other channels do include the surround soundtrack, whether its digital or Pro Logic. The unit does however have analogue left & right outputs which cover off 98% of other channels. Curiously enough, the left and right channels are reversed on mine. No biggie of course. I also found they don't like to drive low-impedance inputs like you find in some older audio gear. Mind you much of my audio gear is very old (as in vacuum tube) so input impedance isn't an issue at all.