if you dont mind ps3 only headset the p11's are the way to go 50 dollars on amazon and use those for a while and if you feel like you " need " the dolby surround sound get either the ear force dss or the mixamp both the same but ear force cheaper look it up i got the ear force an works well but...
as far as i know x12's are just the xbox version of p11's which i own and for under 50 dollars there definitely worth that price its not virtual surround sound but for stereo headphones there great for the price