i use my Logitech Z-560 and i was wondering if there is a huge big deal difference between Z-560 4.1 and Those Logitech Z-680 5.1

Someone has tested both here ?

Z-560 are great but what about Z-680 they really can offer a lot more?

I'm very curious about that since Z-560 already rock

I have the Z-680's and I can say if you want the best quality speakers and are willing to pay for them, get these. They are amazing, and if your sound card has optical in, its even better cause you can have DIGITAL THEATER SOUND (DTS). Which is the highest sound quality possible. Also THX certified. Its Logitech's flagship setup. IF you want a speaker purchase and have the budget for the Z680's get them! You wont be disapointed. They cream most other systems on the market. So in my opinion the extra money is worth it, if you want high quality sounding surround speakers. They are the best money can buy Im not being bias, its well known. All hail Logitech. I had the money and I researched a lot, and I found these to come up on top countless times. So look no further if you want the best.