this is from the manual for my stereo which was apparently released around 2004
so turns out the alpha sound stuff isn't just a different EQ mode but, in true "shove it full of features" fashion, it's a kind of LFO aimed at "alpha waves" which is supposed to "make you relax just by listening to music"
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having tried the alpha sound feature in my stereo, my opinion is that some of its modes can make music sound nice, but automatically relaxing? heh i'm not so sure
