If you're looking to boost your sound system, for your home theater and/or your computer, then definitely take a look at the new Logitech Z906 Surround Sound Speakers.
This is a full 5.1 surround system, in a relatively small package, with a clean design plus a nice control console with remote control.
It's THX-certified, and pumps out 500 watts of Dolby Digital and DTS sound, from up to six inputs including TV, DVR, DVD, Blu-Ray player, Xbox 360, PS 3, Wii, iPod, and PC or Mac laptop.
The front and rear speaker pairs are approximately 6 1/2 x 4 1/4 x 3 1/3 inches, and are wall-mountable, along with the similarly-sized center speaker. The subwoofer is an approximately 13 inch cube that pumps out 165 watts. When we cranked it up we could clearly hear the sound outside the house, much like you do outside a movie theater.
The subwoofer input connections are six-channel from PC sound card, RCA stereo, digital optical, and digital coaxial (there's also a 3.5 mm aux input on the console).
The console has a spare design with indicators that are still effective when adjusting it across the room with the remote control. For example, the volume dial uses a circle of LED lights, which actually increase in brightness as you step up the volume. The Level select then lets you control the volume for only certain components: subwoofer, rear, center, or all.
There's also an Effect select to choose how to process stereo input: Stereo 2.1 (front only), Stereo 4.1 (stereo front & rear), or virtual Stereo 3D. We found the 4.1 setting to be too strong from the rears in our set-up, but the Stereo 3D was subtle but very effective, filling the room well, especially in a sub-optimal space with non-ideal speaker placements.
In comparison to the TV speakers, the Z906 clearly added the low-end without being overly muddy. It was great for music, for loud movies like Transformers, and also even for the more polite sound of a golf tournament, with clean, natural speaking voices plus a low rumble from the outdoor setting.
The Logitech Z906 Surround Sound Speakers could be a nice upgrade for your home theater, video gaming, and music listening. The clean look and relatively compact size fits nicely into existing spaces. They are available for around $339 (street price), and even include the speaker wires (albeit not digital cables).
See my Audio Accessories Gallery for more on speakers.
Find the Logitech Z906 Surround Speakers on Amazon.com