SoulTone Fifty-Fifty HSS – Designed to soften the treble attack on the high strings while retaining all of the articulate snap on the low strings by mixing Alnico 2 and Alnico 5 rod magnets. Alnico 2 rods under the G, B, and E strings & Alnico 5s under the low E, A, and D strings. Humbucker uses a full Alnico 2 bar magnet to tame the harshness. This set comes on black vulcanized fiber bobbins and wound with 42 AWG wire, sand cast alnico 5 & 2 magnets, reverse wound, reverse polarity for noise cancelling position 2 . Bridge 7.8K, Mid 6.3K, Neck 6.1K. All my pickups come wax potted.