Posted a couple of months ago that I picked up the Senn HD-1, though well built I found them heavy (in comparison) and that they would leave a huge 6 hour long welt on my folically challenged head. Though I had them over 3 months, the local dealer here took them back on trade, where I paid the difference and picked up the Sony 1000xm3. Great piece of gear, love the comfort, weight, sound and the available app.
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When it comes to headphones...comfort is number 1...and having Sennheiser cans in the past...I can attest to comfort as being the most likely comment when someone doesn't like them...good company and good product...just some models will "wear you out"....I moved away from cans right before I entered the surround hobby...