Sound Machines

Yamaha's new receiver brings high-quality audio to your personal computer. But is it worth it?

During a recent office move, someone heisted a pair of trusty old computer speakers from one of my machines. A lot of people would obsess about the crime and curse the cruel God who could create such larcenous, broken souls. Not me. I saw it as an opportunity to get a better stereo system for my computer.

As long as I was upgrading anyway, I wanted something that would match the luscious digital quality of the DVD player in my PC, which I was using to "test" the latest DVD-movie releases. I reasoned I could get another set of "multimedia speakers"--with...