Magnet: Alnico 5 ( Alnico V ). Position: Neck / Bridge pickup are available. Pickup Pole Spacing: Neck 50mm,Bridge 52mm. Bridge Pickup - Total Resistance: 14-15k ohms or 8-9k ohms choose. the black wire for signal (hot wire); green& bare wires for ground; white&red wires together for coil split (series cable).