No, but the native voicing is like an aggressive version of smooth. In other words no deliberate peaks, but the general trend of the response curve is a bit on the aggressive side of neutral. This was Mike's idea, and the drivers he selected do it with relatively little overt persuasion on the part of the crossover. I wish my own crossovers came together as elegantly. There's only one actual response-shaping circuit in the whole crossover... ime that almost never happens when the goal is a well-behaved response curve. I think you'll find the native voicing of the cab to be a very useful "starting point" for whatever tone shaping you want to do. For instance my original Thunderchild 112 was arguably too smooth and laid-back - it was hard to coax a real growly tone out of it. That won't be the case here.
And this has nothing to do with the crossover, but the way the 18Sound woofer in this cab "pops" - delivers the leading edge of the notes with palpable impact - seems to be in the same league as the mighty Flex 210 (though nothing that I know of approaches the Flexibility of the 210). That pop is all Steve and Tom combined with Mike's obsessive wooferquesting and experience in what works and what doesn't. For those of you who may have been frustrated with Mike's rapid evolution of new versions and new models, this is how he has been able to cram many years' equivalent of R&D experience into about two calendar years.
Thanks for this very informative post, Duke.