I bought these offered in a special bundle on Amazon. They are in a class by themselves - really a top product. I have pro speaker gear from JBL, Mackie and Cerwin Vega. They are all good, but for me, these QScs are simply the best for sound quality/clarity, loudness and integrated power (500W per driver = 1000W per cabinet). When you then further consider the portability, functionality and performance, they are fully worth their premium price tag. I was initially sceptical about the high price, having bought them after all my others, and for more money, but I now think they may well have been my best-value purchase of the lot. I certainly use them more than all the others for convenience including outside jobs with potentially suspect weather (I got the matching outdoor speaker covers and so they can play on their stands outdoors in light rain). I remember at an outdoor gig once, the wind blew my projector screen unto my K10 speaker and stand, so that the K10 fell about 7ft to the hard asphalt ground. It suffered a small dent on the front grill (was in the cover), but did not skip a beat and kept right on playing through the incident, and have continued on with no problems ever since