Here's what Lollar say about the Imperial neck pickup:
The Imperial® Humbucker captures the airy top end, balanced mid-range, tight lows, and complex overtones of the classic original PAF pickups. We then improved on the design to give you a more balanced frequency response.
Its medium output is in the vintage range with a hotter wound bridge pickup compared with a typical vintage set. Our unbalanced coils produce a tight bottom end that complements the pickup's fullness and causes overtones to build after each note is played.
The neck is hot enough to play on the edge of amp distortion, or you can adjust your picking pressure to achieve a cleaner or dirtier sound as desired.
DC: Neck 7.6K