An employee of my dad's recently brought in an M Audio Omnistudio that he was no longer using and gave it to my Dad since he knew I was interested. He was selling it for $75 on Craigslist but called that a "Craigslist tax" for the people he had to deal with and said I could have it for free. The catch is there's no power supply. No big deal, I was going to buy an Mbox (which would have limited me to Pro Tools LE) and a couple mics for $150, so I figured I can be bothered to hunt down a power supply for it. So, I get it the other day and I turn it around and read that it needs a 9V 3500mA power supply. First I went through everything I could think of in my house, but none of them had a rating higher than an amp or so. Then I went on the internet and searched, and I can't seem to find anything with that kind of amperage at 9V. Is there something I'm missing?