rulerofrecords
100+ Head-Fier
Underneath the headband on the right side near where the headband meets the strap, should have a small sticker with the serial on it.
BTW, I spoke to about 4 upper management, including Sankar (the founder) and Mark Cohen and all told me that the LCD-4 has always come with carbon fiber headbands.
Not sure what else to say. I wasn't around then so I have to go on their word.
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