As far as I understand, at least a stereo bus is converted to digital and routed through the USB connection, apparently making very easy to select signals for recording. Any comments about whether they're usable with Linux and regarding the audio quality they offer? [1]Alesis MultiMix 8USB [2]Yamaha new USB mixing studios 1. http://www.alesis.com/products/multimix8usb/ 2. http://www.macmusic.org/news/view.php/lang/en/id/4024/ Cordially, Ismael -- When I grow up I will go there.