Audioengine A5 Speakers, $349
The company's flagship speakers stand ten inches tall and feature a built-in amplifier. The woofer, made of Kevlar, handles bass frequencies with aplomb. The silk tweeter helps smooth out the sound. Designed by Brady Bargenquast, 39, a former product manager for Apple, and audio engineer Dave Evans, 52, the speakers work with any MP3 player and can be wirelessly synced with Macs and PCs.