I have a CUB, not much volume to it but good tone, not too much bass but what do you want for two 4 speakers. I ended up buying one of the C4's, great tone and tons of volume and great bottom end. I liked it so much I bought another. I now run them through my Markbass LittleMark 800 tube...pretty amazing...speaker placement has a lot to do with what you'll get out of it.