I don't think any reasonable person would expect a fEarfull/LDS/Bergatino out of the latest Avatar offering. The "bashing without even testing the thing" comes from what we already know about drivers, cabinets and how they interact.
What we know:
1. We know the drivers being used and therefore their specs
2. We know the size of the cab (airspace)
3. We know how drivers of dissimilar sizes/specs interact when sharing airspace (and it's not favorably)
4. (99% probability) There no separate chamber for the 10
5. The slot port at the bottom can be tuned for the 15 or the 10; no way it's even close to optimally tuned for both at the same time, nor is it possible (AFAIK!)
5. Standing waves/back waves/whatever you call'em will absolutely screw with the 15 and 10's performance, color the sound, mess up the freq response, etc
I'm not an EE nor a cab designer by trade and I don't even pretend to know 10% of what someone like Bill Fitzmaurice (example for a Subject Matter Expert) knows. But I have built speakers/cabs before, both subwoofer for car and home and home-brew DIY designs. I know the basics; and the basics say that based on what I outlined above, this cab is a bad idea. Again; I own two Avatar cabs (soon to be a 3rd...B210) and love them. I'll be skipping this one. Maybe a few months from now I'll be eating my words; we'll see. If I was wrong I'll admit it...but I don't see any crow on my plate in the near future.
