Difference between SRS Audio Essentials and HD Audio Lab?

So SRS Labs is selling three programs right now. SRS Audio Essentials, SRS HD Audio Lab, and SRS iWOW. What is the difference between these three? Audio lab i think costs a little more than Essentials but essentials has a free trial... But really, what is the difference?|||SRS Audio Essentials is the latest PC software from SRS Labs, that has replaced HD Audio Lab. AE also has all new audio processing algorithms and includes TruVolume technology to keep your listening volume consistent between content sources. All in all, they do similar things to sound, but AE has new stuff, a better GUI and includes TruVolume.|||AE is essentially HDAL with a prettier face and it is a freebie not a trial, at least the basic version is. The PCWorld article here





http://www.pcworld.com/article/239374/srs_audio_essentials_enhances_sound_to_awesome_but_addictive_standards.html





describes the program. The paid version has a lot more bells %26amp; whistles but IMHO they don't do anything more than complicate things. The free version is nice, simple, and sounds great.