I have a lot of gigs and was using a smaller mixer with a wall wart. The connector on the wall wart was starting to wear, and I was worried that I'd be at a gig and it would break entirely. Also one of the channels on the older mixer had gone out. So I needed something that would be more reliable. I looked at a bigger Yamaha mixer but decided on the 12 channel mixer because it satisfied all my needs for a mixer. The sound of this Yamaha mixer is very clean, it's easy to understand, very fast to set up. I like the buttons on the channels and on the effect send and on the stereo fader that turn them off and on individually. It makes it very easy to mute the board when the band takes a break. And with this mixer there's no wall wart —you get a standard AC cord connector. This is a great little mixer!