You should think of the Shure Beta 58A as a somewhat upgraded version of the classic SM58. It maintains the same legendary tone but features upgraded mic components which improve its overall performance. Many professional touring vocalists have made the switch since its release.
Key Features
Ultra-reliable, durable build quality. Hardened steel mesh grille.
The frequency response is designed to suit close-up vocals with a bright, clear mid-range. A bass roll-off helps to control the proximity effect.
Supercardioid polar pattern delivers high gain before feedback and an improved rejection of external, off axis noise.
Minimal effect from a varying load impedance.
Pneumatic shock mount system reduces handling noise, vibrations, mechanical noise etc.
High signal to noise output thanks to a neodymium magnet.