Shure Beta 58A

[3] In 1996, Shure altered the Beta 58 to create the Beta 58A, with a completely new cartridge design, meant to mimic the old cartridge as far as polar pattern, output level, and frequency response, but with slightly different sound characteristics;[when defined as?]

the revised design also removed the hum-bucking coil and added an output transformer.

Two major differences are that we removed the hum bucking coil on the new model and added an output transformer.

"[5] Though the shape and intended applications are similar, the Beta 58A has little in common with the earlier and popular SM58.

[1] The Beta 58A also features a supercardioid pick-up pattern for better sound rejection from the sides.