Anatomy of a Sound Card
PC sound cards typically have all the components in this picture. Some have only one output, which may be amplified (Amp) or not (Buffer amp). These components may also be built directly into the motherboard. (Illustration courtesy of Peter Hermsen.)
High-End Sound Card
This Audigy 4 Pro sound card from Creative Labs' Sound Blaster family cables to a remote-controlled external hub that supports all major surround sound standards, up to seven speakers and a subwoofer. It provides a wealth of analog and digital inputs and outputs for connecting audio and video equipment and even has ports for MIDI synthesizers and musical instruments.
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