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Xeem

macrumors 6502a
Feb 2, 2005
908
15
Minnesota
Not sure about the Audigy, but I use a USB Creative Labs Sound Blaster MP3+ (AKA Sound Blaster Digital Music) on my TiBook and get noticeably better sound than Apple's onboard. Creative doesn't make Mac drivers for it, but Panther recognizes it automatically as a generic USB audio device and lets me use all of its inputs and outputs, including optical. I would think (and hope) that if one USB Soundblaster works, the other would work as well.

Here's a link to the MP3+ for anyone interested. I only bought it because the onboard on my PC wasn't working and I saw it on the shelf at Wal-Mart, remembered a positive Tom's Hardware review of it and grabbed it.
http://us.creative.com/products/product.asp?category=1&subcategory=207&product=154
 
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