Dolby Digital and DTS decoders, and Dolby Pro Logic II surround sound 100 watts per channel, with less than 0.9% total harmonic distortion Three surround-sound modes: movie, music, and panorama Six sound field control presets: hall, club, live, theater, simulated surround, and party Speaker size and placement controls customize sound to your room 50$ OBO.
2) The problem occurs on my Hackintosh and my late 2009 MacBook Pro, each with completely different specs.