The via 1.5 chipset could not handle the winamp/VAC/ASio4All/Console approach. this method:
http://www.mp3car.com/wiki/index.php..._Tuning_Method
I tried running 5.1 channels in Console.. with only EQs plugged into the fronts, center, rears, & sub; no crossovers or time alignment, just 30 band EQs. As soon as I hit play, 75% of the processor was consumed.. chug-a-lug!
The Presonus Firebox worked with the above setup.. but the computer just was not powerful enough. If I had a powerful cpu, I am positive that this sound card would be most excellent. However, it's a soundcard that is taylored towards the recording studio, so while it will work great for the above method, there are better and cheaper options for a stand-alone setup.