Which is better? Logitech z906 vs Wharfedale Diamond 9.1 & SW150 Subwoofer?

[TheMattleHead]

I've been looking at these two speakers and was wondering if anyone could tell me which is better? Right now the z906 is on sale at £150 so I didn't know which one to go for either the Logitech z906 or Wharfedale Diamond 9.1 & SW150 Subwoofer? Or another 2 Wharfdale satellites for about £150 and then the Sub.

This is for listening to Music mostly, but I do also watch movies and play a lot of video games. PC has a built in Sound card "SupremeFX Formula - Amazing 120dB signal-to-noise ratio with integrated 600ohm-headphone amplifier"

Thank you!

 

[americanaudiophile]

For music and movies the Wharfedale 9.1 and sub will definitely be much better. On games the Logitech might have an edge but not being a gamer I can't say for sure.
I don't think the 9.1 are self powered so you will need a 2 channel amp to drive them. The sub is self powered but doesn't drive the satellites only itself. A small digital amp would work but would add to the cost. The amp in your soundcard is only for headphones so won't drive speakers.