OK. I will tell you what changed my mind about wallwarts. I was recording a track and smelled electronics burning. I looked at my rack mount stuff, mixer and everything else. I kept recording. The smell grew stronger. I looked at my wallwarts and saw smoke starting to come out of the Presonus Blue Tube wart. It then caught on fire and plastic burning drips hit the carpet. I pulled the power strip and doused the shorted wart in water. If I had not been home, that would have been the end of my house. If you care about your house, wife, kids etc. you will power all wallwarts down everytime you are not present in the same room. Don't listen to the possible hundreds of posts about it being safe. It happened to me. It only has to happen once for complete disaster! I do not buy any equipment with those types of power supplies anymore as a matter of principle.