Stock earbuds

Bowls on the SR125.

After clicking over to head-fi just now, I saw a $99 special on RE0 on the current page. Those things got great reviews, and if they even come close they would live up to the original poster’s needs. 

Classical listeners are a minority. The premium is on clarity and spaciousness–not the giant bass oomph of headphones made for current rock/pop/hiphop. A bass fiddle is not a club subwoofer. But a lot of cheaper phones are made for bass-addicted listeners, and they are not going to show classical recordings to their best advantage.  A classical listener would probably do well to go for phones touted or denounced as “analytical”–which means they are not going to pump up the bass.