One of the few pleasurable things from the Vietnam War was the availability of good quality sound systems at affordable prices. Expensive blue tooth and noise cancelling have their place but the sound reproduction lacks in my opinion. This MDR 7506 sounds fine.
My sound engineer brother recommended these to me, stating he's used them for years and simply replaces the ear muffs! I am able to discern instruments in years-old recordings with fresh clarity. I love them and will suggest them to others. Thanks!