If you listen to mainly enjoy your music, yes. Even doing just critical listening would just yield a 10% overall sound quality difference between the two. When I was a kid, my brother’s friend introduced me to his brother, who happened to be listening to Lambda Pros. This was the late 80s, so everyone around me was listening to everything synth-related. When I heard classical music with the Lambda Pros, I knew that I was hearing a recording, but one of the clearest recordings I ever heard. It was like listening to speakers, but they were on my head and playing onto my ears. A few years later, my other brother’s friend talked about the new Koss ESP-950s and dreamed about owning them some day. Now my family went through many car audio systems (Alpine, Nakamichi, etc.) and home theater systems (Bose, Definitive, etc.), but personal audio always stuck with me, so hearing the SR-507 a few years ago was a real treat again with clarity that was almost indescribable. When I bought a used set of ESP-950s, I was living that dream my brother’s friend had that one day. It sounded better than the Lambda Pros, but not better than the SR-507. I eventually heard the SR-L700 and it sounded like the best Lambda-series I ever heard, but emotionally it just reminded me of the SR-009. So when I traded my ESP-950 for a SR-L500, I felt those memories all over again. The L700 still sounded better, but that did not matter to me, as that more luscious sound of the L500 projected decades of sound improvements onto my ears, yet still making me feel like it was that day, when my brother’s friend asked me about auditioning the Lambda Pros. I know it sounds like a Storck (Wherther’s) commercial narrative, but that is my evaluation.