This hit my inbox this morning. I know a bit about electronic component and speaker burn-in but nothing about headphones. Why would it take 40 hours to burn in a set of earbuds or headphones? I would think it would be much less than speakers, or certainly not more than, and despite the hype with rare exceptions speaker burn-in only takes seconds or maybe minutes...
https://hub.yamaha.com/how-to-burn-...9f-e695b9ccb673&dm_i=50RY,D3JL,2TANEE,1D8B9,1
https://hub.yamaha.com/how-to-burn-...9f-e695b9ccb673&dm_i=50RY,D3JL,2TANEE,1D8B9,1