The Shure Beta 58 retains the basic tone of the SM58 but, by using more modern microphone components, Shure have improved certain areas of the mics performance. For a start, the Beta 58 has a better frequency response and has slightly enhanced high end clarity when compared to the SM58. The Beta 58 also boasts improved feedback rejection, meaning you can get a little bit more volume out of it before the mic starts to feedback. The Beta 58 is just as reliable as the SM58 and will give you years of trouble free use.
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