Most Disappointing Headphone
Credit for this idea goes to this thread: https://www.head-fi.org/threads/biggest-disappointment-headphone.855530/
Sinple question: what headphone have you personally tried that you found the most disappointing?
Keep in mind that this is NOT necessarily the headphone you hated the most. The question is about a headphone that was hyped, perhaps had glowing reviews, but when you tried it you were filled with disappointment.
Also, this is not the time to bash other people for what they didn't like. It's their opinion and they are as entitled to have it as you are entitled to have your own. Be respectful!
My vote goes to an early prefazor LCD-2. I heard so much about it, saw the glowing reviews, and when I tried one I won the lottery of auditioning a grade F. I wanted to punch the wall with how bad it was. Luckily, I was convinced of giving another a try, but this was a spectacular grade A unicorn.
(In Audeze's defense, post-2016 the quality control has gotten to where it should be for high-end headphones and I love them now. I own a pair of 2016 LCD-3)