After having them for 2 months after previous owner one stopped working due to internal issues, very upsetting after paying nearly 2,000$ for a product. Online forums list this as a reoccurring problem with this model but if you did not search for this particular problem you wouldn't stumble upon it. This problem has been fixed with the later 8050b model. Other than that very detailed frequency response, great overall speaker to produce music on. I HIGHLY SUGGEST THE 8050b NOT THIS MODEL!!