많은 분들이 Shure사의 SM57 마이크와 SM58 마이크가 동일한 마이크 이며, SM58의 윈드쉴드인 뚜껑을 분리시키면 SM57과 똑같은 마이크가 된다고 잘못 알고 계신 분들이 있는데.. (저도 블로그의 글에서 거의 똑같다고 쓰긴 했습니다.)
SM58 에서 뚜껑을 제거한다고 sm57과 같은 성능이 되진 않습니다.
sm 58과 sm57은 엄연히 다른 마이크 입니다.
물론 58의 뚜껑을 제거 하면 57과 비슷한 성격의 마이크가 되긴 하지만 (proximity effect에서) 동일 하다고 볼 수는 없습니다.
오랫동안 인터넷 포럼을 달구어 왔던 토픽인데.. 아직도 많은 분들이 잘못 알고 계시기에 짧게 팁을 남겨 봅니다.
두 마이크의 자세한 스펙 링크와, sm57과 sm58이 어떻게 다르냐에 대한 Shure사의 답변을 첨부하겠습니다.
http://cdn.shure.com/specification_sheet/upload/82/us_pro_sm58_specsheet.pdf
http://cdn.shure.com/specification_sheet/upload/81/us_pro_sm57_specsheet.pdf
The SM58 was designed for vocal applications and it uses a ball grille that acts as a reasonably effective pop filter. The SM57 was designed as an instrument microphone where a smaller grille size is preferred (and pop and wind are not usually a concern).
The SM58 and the SM57 share the same mic element, the Unidyne III. The main difference between the these two models is the grille design which affects the high frequency response, particularly above 8kHz, and the amount of proximity effect.(However, the unidyne III cartridges are not interchangable between the SM57 and SM58 because the mounting scheme for the capsule is different for the two microphones).
The grille designs employed on the SM57 and SM58 place the diaphragm of each microphone in very different acoustical environments. The SM57 uses an integral resonator/grille assembly, where grille is actually a part of the cartridge. This design allows more proximity effect because the mic diaphragm can be placed much closer to the sound source.
When a mic is placed very close to the source it is quite easy to halve the distance: 1 inch to 1/2 inch; 1/2 inch to 1/4 inch; etc. Remove the ball grill from the SM58 and it will be more similar to the SM57 in its low frequency response.
Any other differences you hear between the SM57 and SM58 are likely to be subjective (psycho-acoustic) or due to slight manufacturing differences due to part tolerance.
