Instruct: Classify the given review as either positive or negative.
Query: Noisy

I bought it because it had the bonus of a sub woofer out and a lot of other good features for the price. It hissed so loud I took it out of the rack within 30 minutes. I tried TRS cables, XLR and TS, even with the mixing board disconnected, it still hissed. I played with every setting, the only way to quiet it down was to put it in bypass. As soon as I pulled it out of the rack my system was quiet again. They had some good reviews so I don't know if I got a defective one or not. I am going to return it tomorrow and try another brand. I had a behringer compressor a few years back, it died in the middle of a gig. It was only about a year old and always used with a power conditioner, I thought it was time to forgive and forget, I guess not.