Here's what Lollar say about the P90 Soap Bar Bridge Pickup:
Our flagship pickup and an industry standard. This pickup is scatter wound with de-gaussed Alnico 5 bar magnets, giving you a fat, clean tone with a smoother treble making it ideal for harder, driving rock with more grind. It sounds like an old P-90 rather than a new pickup with hard edges. The neck and bridge volumes are nearly equal when playing chords, with the bridge sounding slightly hotter when playing single notes.
DC: Bridge 9.1K