Has anyone had a chance to try both? I'm looking for a reasonably priced 1x15 to pair with an Ampeg PF500, and I've narrowed it to these two. Whichever I choose, I'll probably get a second one down the line. The obvious choice is the Ampeg pf115he, but I'm also very curious about the new GB Focus cabs. I'll get a chance to try the Ampeg, but probably not the GB. I play all passive 4 strings.