My friend was just given a Fender 1x18 cab from one of his bass playing buddies. He was really excited about it, so I came over to see it. I was expecting a 2-3 ft tall cab, but when I walked in, the cab was over 5 ft tall! I asked him what the deal was, and he said that the speaker was faced backwards, and that it was channeled through 2 ducts that guided the sound forward, or something. He didn't really know what it was either, so I thought that I'd ask my good buddies here at TB to tell me what it is! Has anyone seen a cab that had some inner system like this, or do you know what my friend is talking about? Do tell. Just curious.