Do I need a DDL sound card?

DDL(Dolby Digital Live) just lets ALL sound be encoded in dolby digital so your digital speakers/amp can play ALL sound back, not just the stuff already in DD. That said, most(if not all) BD content is in a format that most digital speaker systems and amps can decode.

If you are just listening with analog(Connected with the 3-4 sets of mini-headphone jacks) speakers then DDL is a waste. You can even watch BD content in stereo if you want.
 

AKM880

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BD content is stereo is not great lol, so lets say I have this sound card without DDL and it has Coax SPDIF out. Will the digital receivers be able to decode that sound and make it enjoyable for bluray?