mine has it,i paid a little extra for it....i guess its alright thing to have..
all i really know is what your paying for is THX Components inside the receiver that other's dont have because its not THX certified...
and what really makes me think...how can you improve on HD sources like HD Master Audio & uncompressed audio....so i dont really know about the whole THX thing....next thing u know u need THX speaker wire,THX HDTV....THX Subwoofer...to get the whole THX effect..
THX is a nice thing to have... will the casual listener care? Not a bit! My receiver (AVR254 from HK) is not THX certified, but compared to my dad's THX certified 2308ci I win. Speakerwise we both use Definitive Technology. I use the Procinema 600 and he's got pro1000 in the front and 800's for the surrounds.
Guess it depends if you want to believe its better or not....?
THX is just an extension to already available surround sound and image formats.
It's supposed to replicate the way it was intended/made by the studio
Movies that bear the well-known logo have gone through the THX Digital Mastering Program. This is a professional services group that works with studios and post-production facilities to ensure that the highest standards are applied for sound, video, compression, and replication.
THX-certified video displays include a THX mode which allows users to see a program or movie as the creator intended