Logitech Z506 worth the upgrade over Z323

[spiwar]

I am now currently using the Z323 speakers and wondering if the Z506 speakers is worth the upgrade. I'll be mainly using it for gaming, movies, music, etc. and i want more bass without giving up the treble (Z323 default was okay but not good enough, had to EQ it for awhile to get a decent sound). Is the Z506 way better than the Z323, or just a little better? Is the 5.1 surround sound worth?

 

[ubercake]

5.1 surround is definitely worth it because of more accurate positional audio. You probably will have to mess with the EQ on the Z506s as well since they are on the lower end of the surround sound spectrum, but I really think the increased accuracy of the positional audio will be worth the upgrade.