Just purchased these from overclockers, upgraded from the standard medusa's (not the usb ones) and noticed there is absolutely no bass in the rear speakers so everything osunds tinny in the rear.. Have tried everything to get these to work, setting the crossover, changing the bass settings and more. The best way of explaining is in Counter strike, i throw a grenade and quickly turn around to hear the explosion in the rear, instead of a boom i hear fiddly little psssshh. Now i understand that the rears should be quieter however this is not the problem it is just that there is no depth to the rear speakers. I have searched the net and found other people to have similar problem. Does anyone have a similar problem?