Pros: -Fantastic Sound Quality -Outstanding Bass -High Quality Feel and Appearance

Cons: -Not really a con but the left speaker input on the back of the subwoofer is a little loose so it jiggles a minor amount. Other than that, they have earned this 5 star rating.

Overall Review: I replaced my Logitech X-540 5.1 speaker set with these and I just have to say... WOW. These speakers are an amazing replacement. I haven't owned them very long but I have already played some heavy songs and sounds through them and it is a night and day difference of quality. Don't get me wrong, I really enjoyed my X-540's, especially for the surround factor, but I just got tired of being so OCD with the placement on my desk of all 5 speakers. While it may seem like a minuscule obsession, after 3 years it got really old. I did also have a problem with crackling noises that came from all 5 speakers when I would adjust the volume with my X-540's. With further research, I discovered that the pot unit that the knob sits in was probably dirty but cleaning it did not remedy the issue. This is one of the main reasons why they have been replaced. I would highly recommend the Z623 Speakers to anyone, audiophile or not, regardless of application. Not only do they live up to the description, they go well beyond my expectations. For someone like myself, that is pretty impressive since I am so OCD about even the most minute flaws :-P