From what I know AE does feature just better DAC which gives better samplerate & bit depth, but regarding to surround settings lacks the CMSS 3D. Sound quality is not what I expect (however I know it will be great) but really want to adjust surround to have my 5.1 speakers working, and not be partially deaf due to mostly stereo content I've got. Hence my question - what is the way to make a surround from stereo here, because I didn't receive card yet, so maybe it's still a time to return