I have had a pair of these for several years now and am very pleased. You need a lot of power to get the best performance from these. I have a classe 5 channel 250 watts per channel operating mine. I am using 2 channels per speaker.I am running 250 watts to the woofers and 250 watts to the high end. Total 500 watts per speaker.The quality of the sound only gets better when you add more power.I play rock, acoustic material,and surround sound through these. You get good bang for the buck with these.