When I was selling my JBL 640's I gave my cousin a demonstration. We listened to PF's DSOTM on CD (I forget which version). Listening, I thought that this was the best sound I had heard from that venerable recording! I told my cousin so and said "sell the JBL 100's and buy the 640's." No go! My cousin remained non-plussed and left, content with returning to his venerable L100's! So is my cousin an audioph*le?