Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Only a piece of junk

I bought this product with great expectations and enthusiasm. I brought it home, hooked it up, and only 30 minutes later , yes, only 30 minutes later I heard two 'clicks' coming from the amp and everthing stopped. I couldn't believe my eyes that it broke down on the very first day and the very first moments that it operated. I tried to contact the support team of the producer and so far I have not been able to get any positive support. They only keep asking useless questions and that's it. I wanted to return the product and no answer at all. I have lost 100 dollars with this junk so anybody better keep your wallets away from these guys.