“With every release of new surround audio standard comes a wave of home-theatre purchases. Home-theatre set-ups are usually comprised of high-caliber components, wiring, and time-consuming installation and surround-field calibration. These home system introductions are typically paralleled in the home PC enthusiast market as well, but at a slower pace of adoption. With new home releases come new PC releases; today we examine the Logitech Z-640 entry-level Dolby Digital 5.1 system.”