We love the sound of late 1950s humbuckers, but we didn't want to simply imitate them by using Alnico 2 or “aged” Alnico 5 magnets. Airbucker™ technology was created to capture all of the best sonic qualities of vintage humbuckers while avoiding the technical problems. The Air Classic™ has the same sweet sound as a classic humbucker, but Airbucker™ technology permits us to use a more reliable full-strength Alnico 5 magnet and still reduce string-pull to increase sustain and sensitivity. The result is an almost vocal, three-dimensional sound that jumps off the string faster and stays true as it sustains. The sense of touch and control this provides will offer you an unequalled ability to create your own sound.

DiMarzio DP191FN Air Classic Bridge Humbucker Nickel Cover F Spacing - F-spaced pickups measure 2.01" (51 mm) center-to-center from the first polepiece to the sixth. Standard-spaced pickups measure 1.90" (48 mm). Although some players believe that F-spaced pickups are only for the bridge position of tremolo bridge guitars, many guitars with fixed bridges (including post-1998 Gibson® and Epiphone® Les Paul®, SG® and semi-hollow guitars) should have F-spaced pickups in the bridge position. Most tremolo equipped guitars that have a nut width of 1-11/16” (43mm) or more should also use an F-spaced pickup in the neck position. If you’re replacing a bridge-position pickup and you're not sure what your string-spacing is, it's usually better to get an F-spaced model. It is not necessary for the strings to pass exactly over the center of the polepieces for best performance, but it is wise to avoid a situation where the E strings are sitting completely outside of the outer polepieces.