I've seen arguments each way.... the only way I've seen to really eliminate jitter is to use an inboard pci or a solution that uses a word clock & a pci board to sync it, but... how much jitter? truth is, it'll probably be an inaudible amount, & if you don't hear it, is it really there?
this may be a good place to ask again, does anyone know if multiple usb dac's can be used, & there any reason this would be a bad idea?