I have owned these speakers for several months. There is nothing wrong with how they are built. The build quality is as good as the best speakers around. They have a beautiful, real wood veneer. For some reason Silverline's Mr Yun has garnered a lot of enemies, witness the Avalon suit against him (no basis in my opinion) and the deletion of my favorable review of the Sonatas in the AudioAsylum forum. I don't know why that is, all I can say is the Sonatas are highly musical, low distortion, highly transparent and very enjoyable speakers. They are quite efficient, at well over 90dB and accept a wide range of amplifiers, from muscular solid state to SET. They will downstream the sound you feed them. They are not perfect, of course no speaker is, but easily comparable to other speakers of its price and much higher price as well. These are "window" speakers, that give you a window into the music, as opposed to enveloping you with euphonic sound. Probably Mr Yun has generated much envy in the audio world and stepped on the establishment's toes.
