This amp sounds good but I dislike the eq and the other controls. You can't get a very personal tone because the semplicity of the EQ; you also cannot know where the Hi-boost and Low-boost are working on the spectrum and even the built-in compressor is a bit crappy and has not many controls. The sub-harmonic is a great surplus for getting more volume and presence on subs. This combo is a well manufactured piece for people who need a bigger boy on his rehearsal room. I don't fully recommend it for people who wants more freedom from their amp and they're searching fr their personal tone.