Bought Z506 and guys its awesome.. its better than X540! The speaker's bass is ****ing awesome... am on onboard sound pumped it up on speaker and from computer's sound panel as well and there was not a single crackling sound from the bass sub! the volume controller is on the on the Front Right Speaker and I DONT HAVE ANY ISSUES WITH IT.. infact i love it more.. coz corded volume controller is STUPID and has issues later or sooner.. plus i keep my volume at one level everytime and then control from my computer audio or i use my keyboard shortcut since am using Microsoft Reclusa and have a volume controller jog dial.. playing games and watching movies.. saw Iron Man2 720p on it.. and i was amazed.. my windows were shaking in certain scenes... i got fish tank with 2 x huge sharks and they started getting hyper coz of the blasts and explosions!
U are not getting X540 or even if u are getting then too i'd suggest you to go for these speakers.. dont listen to others who srsly havnt tested anything and just wana give their piece of mind..
Dont misguide ppl if you dont know what u are talking about.. u find them cheap? u gotta see them in real and u srsly got some stupid sense to call these speakers cheap.. infact look more designer and better than stupid rectangular X540 speakers.
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also wana add towards the bass controller... who the freak uses bass controller that often or even often? u are supposed to keep bass on one level and then use it.. not like volume that u modify / use it in every song or movies and music.