Whatever works for you is cool! I personally prefer an amp because I like to "feel" my playing, but I've never used one of those in ear monitors either. I also like the versatility of changing the mix I hear, by moving to diffrent parts of the stage...like closer or farther from my amp. If I had a board mix in my ear, I would want to be louder than the other instruments.....unless you all get seperate mixes, you couldn't do that. But if it works for you, you can get a great tone with just a SansAmp.