Each system uses high quality speakers and amplifiers, wood (MDF) cabinets and ZVOX's proprietary PhaseCue II virtual surround sound system.

ENGADGET: ZVOX intros three new Z-Base models, lowers the pricing soundbar

This is the AmbiSound, which is a solution for virtual surround sound on nothing more than a 2.1 system.

ENGADGET: Philips' CES booth tour

Multi-codec support for DivX Xvid, MP4 and WMV, and support for virtual 5.1 surround sound delivery transforms the device into a personal entertainment system and HD video (720p) decoding and recording capabilities make the Samsung Wave an outstanding device for capturing, sharing and viewing video.

ENGADGET: Samsung Wave: 3.3-inch Super AMOLED, Bluetooth 3.0, and new Bada OS (updated)

Yeah, it doesn't emulate a full surround sound system altogether that well -- the clue's in the "virtual" -- but it looks pretty good and is definitely compact, which is sort of the point with these kinds of devices.

ENGADGET: Philips' CES booth tour