It is a massive cab let me tell you that. I plugged everything in and i started playing......and as i am playing i am a noticing a hissing sound coming from the amp. I play some more and listen and i find that the tweeter has a hell of a lot of hissing coming from it. I don't think this is normal...i've never heard anything like that before. Do i have it set up wrong or did i get a bad tweeter? I am having a lot of bad luck lately.