Revolution 7.1 is the ultimate audio upgrade for your PCI-based computer. Play DVDs and all your music in surround sound, make games more realistic, and record or mix your own music. 7.1 surround sound output and high-definition 24-bit/192kHz fidelity insures that you'll experience it all the way that it was meant to sound. Designed by M-Audio - one of the biggest names in the pro music industry - Revolution 7.1 packs all this advanced technology into a small PCI card that's a breeze to install and use.??Music, movies and games all become more intense, more alive when you're surrounded by sound. Revolution 7.1 is the ultimate PCI solution providing output for up to seven speakers and a subwoofer, rivaling even the best movie theaters. Where 5.1 places speakers beside you, 7.1 places them both beside and behind you for a much more immerse and believable surround sound experience. Sound effects become so real that you'll find yourself ducking to avoid bullets and low-flying planes. A... Minimize