Monster M-Design Centra Invisisound Frame 3000. Available now for $3,499 SRP. Designed for those who don't want speaker towers in their living room. The Invisisound 3000 has the front and center channel speakers hidden in the frame, which can surround a flat-panel television. There are 39 drivers organized in a line array to create a wall of sound, and the end channel is outfitted with 12 two-inch midrange drivers and one 3/4-inch tweeter. Call (415) 840-2000 or visit www.mdesignlife.com.