It kinda doesn't. Completely different pickups. The Super Distortion is big, bold, and loud. The Air Zone is smooth, fat, yet controlled.
This is pretty much it. The Air Zone is sort of like a Tone Zone in a tuxedo - like James Bond, coolness and controlled aggression. The Super Distortion is just like Rex Rocker concisely described.
It's important to note that the Super Distortion, sometimes errantly described as an 80s metal/rock pickup, it capable of a good range of tones. It's actually pretty versatile considering it's in the high output category. It's also classic in the sense that it's not limited to the tones of any particular era. It has a good tolerance in pickup height, so you can lower it away from the strings without losing sustain, and balance it with a weaker neck pickup.
As for clean tones, the Super Distortion is as subjective as any other low mid/mid-centric pickup. Some people prefer scooped mids for clean tones, others like full, warm low end and mids. Depending on your playing style, it can sound really good on a very clean amp. I heard a local jazz guitarist who uses a Super Distortion bridge play amazing cleans and light crunch tones all night. A lot of people tens to say certain pickups are only good for this or that until someone comes along and makes it shine.
The Air Zone, however, does have broader versatility. It has just enough output to push a clean amp into breakup, though the Super Distortion grows a little more hair. It has a big midrange and fairly broad high end, so it's aggressive enough for modern metal, but not for a real grinding, extreme sound. The heavy midrange means you can scoop some mids out and not sound thin or icepicky. It does have a big low end and low mids but rather open, not congested, because there's some character of Air within the frequencies. This makes it quite articulate, and this is also good for heavy riffing as well as overdirven or clean soloing. Even with heavy distortion, it retains enough clarity to hear individual notes of a chord.
As for cleans, well I think it's awesome because of it's unique nature and fairly open, airy tone, but the mids are very prominent and the highs aren't really glassy. I've hear that it's fantastic for coil-splitting but have never tried that. Like I said, clean tones are probably more subjective than distortion tones so it depends on who is playing it.
