. . . redundant scam products? I completely get why buying a $1,500 headphone makes things sound better. I understand why a better DAC makes things sound better. However, unless your headphone jack is unusually underpowered, you're using an electrostatic headphone, or you have suffered hearing loss, I don't see why you need an amp. Not looking to debate the issue. I just want to find a newsletter or society of like minded believers.