The Logitech Z-680 gives you THX-certified theater-quality digital sound. Both optical and coaxial inputs provide for simple connection to nearly any audio appliance, and with the digital SoundTouch control center and the wireless remote, you can sit back, stretch out, and let loose. The bass pumps through the Z-680?s 188-watt subwoofer. Four 62-watt satellites and a 69-watt center channel provide crystal-clear midrange and highs. The Z-680 includes built-in Dolby Digital and DTS hardware decoding. Connect the Z-680 directly to a PC sound card, Xbox, PlayStation2, DVD player, satellite receiver, or other Dolby-ready source and get true surround sound. You can also get 5.1 surround sound from a stereo input through the advanced Dolby Pro Logic II system. You can also connect up to four audio sources simultaneously, while accessing each one at the touch of a button.
505W THX CERTIFIED W/DOLBY DIGITAL

4.0 out of 5 stars
Logitech Z680 Speakers
These speakers are very loud and have an excellent sound to them. These are perfect to hook up to a big TV for surround.
Comment by Gur — June 7, 2009 at 5:58 pm
4.0 out of 5 stars
good for the price….
When I purchased these 3 years ago, I thought I was in heaven. Amazing upgrade from my 2.0 yamaka speakers, amazing bass, amazing how they would never distort, even more amazing…
Comment by Zuzela — June 8, 2009 at 12:00 am
5.0 out of 5 stars
Shockingly Good
I have never heard a better sub-$500 speaker system – and the Z-680s only cost $229! Seriously powerful, deep bass, good highs, supports DD and DTS decoding via Coax & Optical,…
Comment by Victoria — June 8, 2009 at 5:08 am
5.0 out of 5 stars
Aresome Speaker system !
I didn;t use this for pc but for home theather, was actually quite good, sub is big, i heard z5500 is bigger and fix little bit of z680 problem, so i probably won;t recommand u…
Comment by Jovie — June 8, 2009 at 10:36 am
5.0 out of 5 stars
Amazing
I got these speakers because they had an optical imput and the new motherboard I got has optical audio out.
Comment by Henriette — June 8, 2009 at 1:48 pm
5.0 out of 5 stars
Logitech z680 is best- for all
more words to apprciate
I waited for these speakers for 14 months.I am using it with optical out.
this is the world’s best stuff
Comment by Bina — June 8, 2009 at 4:17 pm
5.0 out of 5 stars
Excellent
Sellar shipped product as described. It would have been polite if the sellar had answered an email inquiry I had sent but in the end it wasn’t a factor in determining the quality…
Comment by Tabananica — June 8, 2009 at 8:31 pm
5.0 out of 5 stars
Excellent Performance and Connectivity
I have thouroughly enjoyed this item. It performs wonderfully. The variety of inputs has allowed me to use it as a dock for my laptop, surround sound for multiple TVs, and a…
Comment by Yale — June 9, 2009 at 1:39 am
5.0 out of 5 stars
Recommended over Logitech Z-5500 (its successor)!!!
First let me just say that a 5-star rating does not come close to expressing the quality of this system.
Comment by Hakan — June 9, 2009 at 6:30 am
5.0 out of 5 stars
Anything Else is A Waste of Time and Money
There is simply no better speakers for a computer system on this planet ….PERIOD. The majority of previous reviews have basically said it all.
Comment by Keyah — June 9, 2009 at 12:04 pm