Yup, bin the presets annnnnnd make sure that you had the unit set up for running in to a power amp. There's a setting in one of the utility menus to specify what you are connecting the POD too, which changes all the amp sims to suit.
Infact, I'd go as far as to say spend some time with the manual. It's actually pretty helpful because there's a lot of things going on under the bonnet lol!
I have used a Bass Pod Pro and also the X3 for a number of years running straight in to a power amp too. Set up properly, it can sound great. Set up badly and it can sound muffled and indistinct!