Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Standard in Studio Applications

When I started working in sound I set out to find good headphones. I noticed that every professional operation be it radio, recording studio, or video production house always used Sony 7506's. I visited manu production facilities and schools such as Full-sail ect. Every professional place only had these headphones. Being no stranger to the business world I figured the reason must be either the headphones were cheap or the best. It turned out to be the later. I've used the Sony 7506's for over 15 years. There is a reason Sony has never changed the design of these headphones, you can't improve upon perfection. I have never had a pair fail on me. The only part that ever wears out are the ear pads and they are easily replaceable.