Digital Audio Labs - Sells products that offer a wide range of hardware-based solutions for PCs, used primarily by professional sound recording organizations and individuals. Creative Technology Ltd. - Manufactures PC entertainment products with a focus on sound cards, including Sound Blaster. ESS Technology, Inc. - PC audio solutions based on the ESS chip platform. Lynx Studio Technology, Inc. - Designs and manufactures professional, computer related audio products. Echo Audio - USB 2.0 and Firewire audio recording interfaces for Windows and Mac computers. The PC Technology Guide - Features and components of a modern PC sound card. Includes graphics, diagrams and an integrated glossary. Audiotrak - Manufacturers of PCI (Prodigy range) and USB based sound cards. Includes support forums and driver/manual downloads. ESI Audiotechnik GmbH - Manufactures desktop media production hardware and software.