I love my amp, it's awesome. But that's where it ends with being satisfied. I unwrapped the amps d was expecting the bass knob with it. It did not say anywhere on the site (could possibly not have the bass knob). It's just wrong for someone not to send everything that came with the amp in the first place.I wouldn't do that to anyone. Now I have to spend another $40-$45 to buy one. And wait for several days to get it. I would think if you pay almost a thousand dollars for an amp, you should get the bass knob with it!!! I'm not pleased at all.