I really wanted to love this, but the first one buzzed continuously from the receiver itself, not the speakers. It has a high noise floor to begin with, but the hum from the amp itself was worse that the speakers. I returned it and tried again. The second was great for two days. On the third day, the buzzing was back, but worse, it overheated and was exceptionally hot to the touch. After cooling it down and switching outlets, the same thing happened. Within a half-hour, the sound started stuttering before cutting out completely. I tried twice and concluded it's an attractive paperweight.