Summary: After the first use of this system the control unit malfunctioned and is now completely inoperable, after some research I found that this is a common problem with this system, after owning 2 logitech 5.1 systems in the past I expected the same quality from them to be in this system. I am sorely disappointed and would advise anyone considering to buy this to turn and run away as fast as they can. SAVE YOUR MONEY AND BUY SOMETHING ELSE!
One Defective speaker in the bunch. Amazon does allow returns of this item
Gino Marrix, Amazon
1 July 2014
Summary: Ok system and sound. Good price... BUT. My luck got a nonfunctional speaker in the set and cannot return easily back to Amazon because its classified as a hazardous material for some reason. So now must battle with Logitech to get this fixed or replaced. What a pain and nust got it. Lower quality than the older Z5500 system it replaces. Do Not recommend.
Excerpt: The subwoofer has a big bass sound that is very clear & distortion free. It will rattle my stuff off the shelves if I crank it up. But Logitech paired the sub with 5 metallic sounding satellite speakers which definitely drag the system down. (I had a Polk RM-75 4 + center small satellite speaker set which I used instead of the Logitech sats. & the sound from this set-up is amazing. I'm not an audiophile but I know what sounds right.
Buyer Beware: No Refunds From Manufacturer or Amazon
1 November 2013
Summary: I am very disappointed with both Amazon and Logitech. I bought the Z906 Surround Sound Speaker System as a present for my boyfriend on Monday, received the product on Tuesday, and he set it up on Wednesday. Right away, one of the prongs in the DB-15 Connector (can be seen in the product image: back side of product, blue area labeled "console") was bent, rendering the product completely useless since it would not turn on.
Summary: I installed these speakers and spent over 1 hour on the phone with tech support. Speakers would not work only made weird sounds. The tech said to return them so I am in the process of doing that.
Summary: I purchased this product to replace the Logitech Z5500, which had served well. Unfortunately, the Z906 had a number of flaws that makes this a "no-buy" review. 1. The quality of sound coming from the (500w!) system was markedly lower than the Z5500 -- particularly from the subwoofer, which is about 30% smaller than with the older system.
Summary: After spending ages researching reviews I went for this system only to find after an hour of using it that it stopped working. The input lights light up and it wont work even after resets. I then went on to Logitech's forum and this has been a massive issue with this model since 2011 and Logitech are really not interested in fixing the issue. For this reason I wont be asking for another one but going for another make entirely.