If you have a mac notebook than the Duet is portable as it's powered from the firewire port. It's portable in the sense that if you were at a Starbucks or wherever you could easily use the Duet, especially if you had a cable made (the one that comes with it is a lot to carry around as it has several different possible connections, only one set you need). However, if you really want something portable, then the Pico is your choice. Even if the sq wasn't the equal of the Duet (I'm not saying it isn't), it sounds excellent and I don't believe you would be disappointed. It will also serve as a truely portable amp for an ipod or other dap, which the Duet can't. In your situation, I would go with the Pico.