Has anyone tried using these type of upsampling units to better your CD collection? (Ok so maybe better is not the right word..) I'm interested if it really makes that much difference? I've only read the reviews on one company and they seem a bit much to me.....I'm sure a lot of readers know already what I'm talking about but for those that don't or don't understand my question, you upsample the 16 bit to 24 bit and 96khz before converting to analog. I'm curious as to this really makes that much difference?