My all time favorite Sennheiser headphones #bestheadphones

My Sennheiser journey started with the HD 414 in the early 1970s; I bought an original HD 414 a few years ago. https://www.cnet.com/news/does-sennhe... Next came a HD 580 in the late 1990s. Then a HD 700, still on the company’s site, https://en-us.sennheiser.com/audiophi... And now a Massdrop X Sennheiser HD 6XX (aka HD650). I misquoted the price in the video, I said it’s $200, it’s actually $220. Here’s my CNET review from last weekend, https://www.cnet.com/news/high-end-so... My 2011 Bottlehead Crack headphone amp review, https://www.cnet.com/news/mission-imp... The Bottlehead Crack is still in production, https://bottlehead.com/?product=crack... The Hifiman HE400S is $229 on Amazon, https://www.amazon.com/Hifiman-HE400S... I also love the IE 800/IE 800 S in-ears, https://www.cnet.com/news/sennheisers... Follow me on Twitter:   / audiophiliacman