Hi. My current setup is Sennheiser HD428 (recently developed an intermittent buzzing noise, so want to buy a new one) and Sansa Clip +.
I listen to mostly classical music.
So far, headphones that I might buy are ATH AD900 (if I can find them used), ATH AD700, Sennheiser 558, maybe Audio-Technica M50, but I am looking more for open end headphones, as I usually use IEM at the library.
I'm looking for something that reproduces classical music as performed in a concert hall, hence the preference for open-end headphones.
Below $150, what are my options? Amps, DAC, etc are not needed at this price range, correct?