Yamaha YSP600
True Multi-Channel Surround Sound from a Single Unit
Without any extra speakers, the YSP600 provides true multi-channel sound that surrounds listeners from all directions. Yamaha's acoustic and DSP expertise allowed the development of technology that uses reflected sound waves to create amazingly lifelike sound. DVD movies and other digital sources sound just the way they are supposed to and even 2-channel sources like TV can be heard in dynamic surround sound.
The YSP600 features dual HDMI inputs and one output that support 1080p resolution so users can connect two HDMI sources, such as a DVD player and a high definition set-top box, and enjoy the highest possible quality with a 1080p display. It is also capable of repeating a 1080p/24Hz signal t highest quality picture from Blu-ray discs.
The YSP600 has a powerful and efficient digital amplifier built in. It powers the 16 beam drivers at 2W each and the two woofers at 15W each, for a total of 62W of power. There is no need for the customer to purchase an additional amplifier or receiver, so the system is compact and economical.
The design is one of its most appealing points. As a single unit, it can be conveniently placed on a shelf or rack, eliminating the need to position multiple speaker boxes. It also eliminates the bother of numerous cables running across the floor. The glossy finish is elegant as well, and will nicely complement any flat panel monitor.
Connecting the YSP600 is much simpler than with conventional home theatre systems, because multiple speaker cables are not necessary. Placement is flexible - it can be positioned above or below the display in the front-centre of the room, or in either of the front corners. It is compact enough that space should not be a problem in almost any setting.
By monitoring and analyzing the sound with the microphone included with the YSP600, IntelliBeam automatically sets the best beam angles, while optimizing the level and frequency response of each beam.  This makes initial setup both extremely simple and acoustically perfect.
$799

As amazing as it seems, the Yamaha YSP4000 can actually deliver multi-channel sound that surrounds listeners the same way that sound from front, center and rear speakers does. DVD movies and other digital sources sound just the way they are supposed to. Dolby Pro Logic II is included, so even 2-channel TV sound can be heard in glorious multichannel surround.
The YSP4000 has a powerful and efficient digital amplifier built in that powers the 40 beam drivers and two woofers. There is no need to purchase an additional amplifier or receiver, so the system is compact and economical.
The YSP4000 provides upconversion of video composite and component signals to HDMI. The signal can then be output via a single HDMI cable to a monitor for enjoying high-definition video quality. The output supports 1080p/24Hz and 60Hz video signals, so they can be throughput to a monitor for enjoying high definition video quality.
The YSP4000 provides analog video-upscaling of composite 480i signals and of component 480i or 480p signals to HDMI 1080i/720p resolutions for optimal viewing on high-definition displays. It uses advanced processing including video encoding/decoding ICs from Analog Devices and a TBC (Time Base Corrector) to restore degraded video signals for distortion-free viewing.
The YSP4000 comes equipped with a rear panel port that easily connects to the optional YDS10 iPod Dock. The YDS10 dock lets you listen to iPod music, watch iPod image slideshows, play iPod videos on the best system in your house.

Specifications
SUPPORTED SURROUND FORMATS
Dolby Digital
DTS Digital Surround
Dolby Pro Logic II
Compressed Music Enhancer
Maximum Output Power (EIAJ) 2 W (1kHz, 10% THD, 4 Ω) x 40
20 W (1kHz, 10% THD, 4 Ω) x 2
SPEAKERS
Drivers 4 cm x 40
Woofers 11 cm x 2
GENERAL
Power Supply AC 120 V, 60 Hz
Power Consumption 55 W
Standby Power Consumption 0.5 W or less
Dimensions(W x H x D) 1030 x 198 x 144 mm
Weight 15.5 kg
$1899

Definitive Technology SSA-50 & SSA-42 system
The Perfectly Simple Surround Solution
If you want all the thrills of five channel surround sound without the need for separate rear speakers, Definitive Technology has the SSA's Spatial Array technology brings you enveloping surround sound without the bother of rear mounted speakers!
The SSA incorporates Spatial Array^TM, a unique patented technology that optimizes the spatial presentation of five channels to create the illusion that you are surrounded by five separate high performance speakers. Enjoying a superb sounding audiophile-grade surround experience has never been more convenient. Simply connect to any multi-channel receiver and a subwoofer to enjoy enveloping surround sound without the bother of running long wires and finding places for rear speakers.

SSA-50 Specifications
Dimensions | Metric :46-1/4" W x 4-1/8" D x 5-3/8" H: speaker only, not including bracket | 117.5 x 10.5 x 13.7 cm
Driver Complement :Three 4-1/2" BDSS drivers with Axially Aligned 1" pure aluminum dome tweeters; Two 4-1/2" BDSS High-output full-range drivers; Four 3-1/4" full-range high-output surround drivers
Frequency Response :50 Hz - 30 kHz
Accessories :Wall bracket; Leveler Feet
Sensitivity :90dB
Recommended Associated Amplifier Power :20 - 200 watts
Inputs :Five pairs of 5 way binding posts
A/V Receiver Crossover Setting :100 Hz
Enclosure :Aircraft grade extruded aluminum
Available Finishes :Gloss Black; Polished Silver
Impedance :Compatible with 8 Ohms outputs
Mounting Options :Horizontally: wall or shelf mounting with included bracket and leveler feet
Weight | Metric :31 lbs | 14.1 kg
Warranty : 5 Years
$1459

SSA-42 Specifications
Dimensions | Metric :40" W x 4-1/8" D x 4-1/8" H: speaker only, not including bracket | 101.6 x 10.5 x 10.5 cm
Driver Complement :Three 3-1/4" BDSS drivers with Axially Aligned 3/4" pure aluminum dome tweeters; Two 3-1/4" BDSS High-output full-range drivers; Four 3" full-range high-output surround drivers
Frequency Response :60 Hz - 30 kHz
Impedance :Compatible with 8 Ohms outputs
Sensitivity :89dB
Recommended Associated Amplifier Power :20 - 175 watts
A/V Receiver Crossover Setting :140 Hz
Inputs :Five pairs of 5 way binding posts
Mounting Options :Horizontally: wall or shelf mounting with included bracket and leveler foot
Available Finishes :Gloss Black; Polished Silver
Warranty : 5 Years
Weight | Metric :20 lbs | 9.1 kg
Enclosure :Aircraft grade extruded aluminum
$1049