"Dmitri(Cabling-Design.com)" wrote in ...
My problem is that I do not have two programs trying to use one card but
rather one program trying to use two cards, and the output on both is
stereo, which then in turn has to be mixed to be sent to mono overhead
speakers.
So, my train of thoughts was: why do I have to waste a channel if I can
possibly create two separate sound streams on the left and the right
channels. That would not only save the (relatively moderate) expense on
the
second sound card, but also a hassle of actually opening a PC that's on
manufacturer's warranty and installing a new piece of equipment that
would
probably nullify the warranty.

What good is a PC whose warranty is violated by
opening it to plug in an I/O card? Yikes, now there
is something to be avoided!