Three years at work. They definitely cost their money, I don’t know better and cheaper. Staggi, X-lines and other things for comparable money are much worse. Do not expect miracles of loudness, RMS in them is a real watt of 250-300 no more, but they press more or less norms. Not as screechy as the 215D. You can work out a banquet at the counters for 70-80 people. In general, they are quite reliable and maintainable.