Quote: Thanks for the replies; all very helpful.    I had ranked the HD598 slightly higher than the AD900 as several here mentioned more physical comfort and "ease of listening" of the 598 for extended use, though both seem to have good sound for my classical and jazz interests.  ...

Hello everyone, Very informative posts on this forum.  I’m looking for open-back headphones to use with a Denon DRA-375RD receiver listening to classical and jazz in my usually quiet living room.  Hope that I don't need a separate headphone amp.  Budget is 150 to 250 USD.   After much reading...