PAF pickups most frequently use Alnico 2, Alnico 4 and Alnico 5 bar magnets. Alnico 3 magnets can be found in PAF pickups but they are much less common than the A2, A4 and A5 grades. Alnico 3 is also less tonally dynamic than the other Alnico grades used in PAF pickups. The grade of Alnico magnet found in a PAF pickup changes the perceived output through differences in magnetic strength, with the stronger magnet grades sounding "hotter". The grade of Alnico magnet also affects the EQ profile of the pickup by changing the inductance of the guitar pickup.