Reviews say surround-sound computer speakers can't match the sound quality of a dedicated home theater system, but the Logitech Z906 does a good job bringing home theater-like experience to your desktop. This 5.1 system (five speakers plus subwoofer) works especially well for movies and games, with bass that's punchy but that doesn't drown out everything else. TrustedReviews.com says the Z906 delivers rich-sounding music, too, although MaximumPC magazine's tester detects harsh, brittle highs with pianos and vocals. Several experts and owners are disappointed that Logitech didn't include any HDMI ports or the ability to decode Dolby TrueHD and DTS-HD Master Audio, both of which would have made it better to use with Blu-ray players and game consoles. It does, however, have multichannel analog inputs for those devices, including some Blu-ray players, that have those ports. If you're not dead-set on surround sound, reviews recommend several PC speaker sets with fewer speakers but better sound quality, including the Bowers & Wilkins MM-1 (Est. $500) and Harman Kardon SoundSticks III (Est. $150).
TrustedReviews.com publishes the most thorough test and review of the Logitech Z906 speakers, covering design, connectivity, features, operation and performance. MaximumPC magazine and About.com also test the Z906 speakers and write shorter (but still comprehensive) reviews. Amazon.com posts a variety of customer reviews, both positive and negative.
"Powerful sound" and "excellent build quality" earn the Logitech Z906 a high 8-out-of-10 rating here. Danny Phillips is disappointed that these surround-sound speakers lack an HDMI input and the ability to decode HD audio.
Review: Logitech Z906 Review, Danny Phillips, May 2011
The Logitech Z906 speakers sound great with movies and games, but music sounds "harsh" and "brittle" in the high ranges. Like other reviewers, Michael Brown notes that it's missing important features such as HDMI inputs and HD audio decoding.
Review: Logitech Z906 5.1 Speaker System Review, Michael Brown, June 2011
It's price-friendly, but the Logitech Z906 speaker system can't match the sound quality of a dedicated home theater system, Lisa Johnston says. Still, if you want affordable speakers that can give you home theater-like sound with your computer, she says, the Z906 is a good choice. (Note: ConsumerSearch is owned by About.com, but the two don't share an editorial affiliation.)
Review: Logitech Z906 Review, Lisa Johnston, June 2011
The Logitech Z906 gets mostly good reviews from more than 30 owners posting here. Several praise its crisp, detailed sound, but its lack of some features -- especially an HDMI connection -- is a common complaint.
Review: Logitech Surround Sound Speaker System Z906, Contributors to Amazon.com