I've got a Vox Stomplab 1G that I use for headphone practice. I'd like to get something that I can take outside to practice with too, but don't want to wear headphones outside. The reviews of the little Vox Amplug cabinet sound like a toy AM radio. Are their any decent sounding battery powered cabs that I can plug the Stomplab into? I know their are battery powered amps that would do the trick, but I dont need all they offer. The amp sims on the Stomplab are pretty good sounding, at least through headphones. Thanks!