better speaker system?

The Z506 are the better speakers but it is up to you for what you actually need.

I have the X-540 and they are plenty of power for gaming and I think that they sound great for music. I'm assuming that they are fairly close to the X-530
 
The Z506 are the better speakers but it is up to you for what you actually need.

I have the X-540 and they are plenty of power for gaming and I think that they sound great for music. I'm assuming that they are fairly close to the X-530

The Z506's seem to be the new version of the G51's. I have the G51's myself and think they're amazing. But if you're on a small budget, go with the X-530.
 
Is this system mainly used for music or for gaming? If you listen to more music then get a nice pair of 2.0 or 2.1 speakers. If you're into games then any pair of 5.1 speakers will do fine.
 
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