humbucker
DiMarzio Super Distortion
The first aftermarket hot humbucker, introduced in 1972, and the pickup the high-gain replacement market started from.
Why it matters
It was the first hot aftermarket humbucker when it appeared in 1972, and DiMarzio still lists it. That makes it the origin point of the high-gain replacement category rather than a later addition to it.
Note
The first aftermarket hot humbucker — the high-gain origin.