My sunn cab is different. Its the 215s and I have it loaded with K140s. It has similar ports but the speaker baffle is not slanted. Crazy thing is, The speakers aren't even fitting in the baffle all the way. Which is another situation that baffles me, excuse the pun. As crazy as it may sound, it totally does put out more low lows.
My power amp isn't bridged. I'm not sending 3kW to a single dually. Speaker polarity is an issue I had not considered and do not really understand. Wouldn't it fry the driver if I installed it with the the wires going to the wrong terminals?
The issue isn't that anything sounds bad. It all sounds marvelous. I just think I had expectations that outweighed the reality of the cabs capabilities. I'm only disappointed because I thought it would be a final solution to my volume issues with my band. I still have invested in an absolutely killer cabinet that will fulfill my needs in any other situation, so I am not too butt hurt about dropping big coin on a custom. If anything I am glad that I am realizing this now instead of after buying a second dually.