tom_nieto said:conuk, if your speakers are capable of decoding Dolby Digital or DTS and have a digital input you'd be able to gain a huge benefit from these soundcards.
tom_nieto said:squiffy, are you after DD/DTS in games and music? If you're just after a simple passthrough like from DVDs then pretty much any soundcard on the market these days would be fine.
tom_nieto said:Yes definitely worth the change. I presume your amp only has digital inputs and not 5.1 channel analogue inputs. The cheaper card will work fine, but the newer card has been optimised a bit more and is of higher quality.
tom_nieto said:It might improve things, but you might as well try the surround sound in analogue option first as it'll be a lot cheaper to start with. I'm sure you could find a couple more cables for less than a fiver. You might be satisfied with that. Sure, you won't get the nice dolby digital light showing, but it'll be the same thing just with your soundcard doing the decoding instead. Up to you entirely though, depends if you want to spend the cash or not, the HDA cards do offer a very nice solution.