Rick,

Since it mostly uses lower frequencies for the brain entrainment, even
a low quality card would work fine. A higher quality card doesn't add
anything. If you add wav files a high quality card will make the waves
sound better.

Ken


> mindexplorersw recommends a soundblaster 16 bit card. Most of the
> new cards are 24 bit. Would a 24 bit card work just as well or better?
> I'm considering the SB X-fi Xtreme Audio card. I currently have the
> mindexplorersw + a Sirius + the XPS 400/onboard sound.
> It's been a wonderment so far... looking to improve the
> experience.