OEM Models: DY, CA, CB, CM, CR, GR Microphones

OEM Models: DY, CA, CB, CM, CR, GR Microphones

Date Updated: September 5, 2019 FAQ #3623
Question:
Why did Shure make DY, CA, CB, CM, CR, and GR models of standard Shure microphones?
Answer:

A DY model (and other such models) were sold to another manufacturer that packaged the Shure microphone with its product, such as a tape recorder, a two-way radio, or a public address system. This type of manufacturer was referred to as an OEM: Original Equipment Manufacturer.

DY = dynamic mic element
CB = carbon mic element
CA = ceramic mic element
CM = controlled magnetic mic element
CR = controlled reluctance mic element
GR = gradient ribbon mic element

The OEM microphones listed below had equivalent standard Shure microphones; the only difference was the model number. OEM archival documents are not kept by Shure; these documents are kept by the company that purchased the OEM model.

* Note: This list is not complete. Sadly, there is no complete list of Shure OEM model.

Shure Part NumberOEM Part Number
51SDY30S
55, 555, 556DY11, DY21, MC32
55SDY12, DY12R, DY14A
55SWDY12S
104CB3C, CB12D
201CA1
202CA22

245SCA45S
300GR30
330GR34
401ACM1A
401BCM1B, CR4W
404BCM44B
404CCM44C
405KCM4K
407ACM47A
407BCM47B
414ACM414A
414BCM414B
419ACM419A
419BCM419B
444CR44
450CR51
488TCM88TF
507BDY57B
514BDY14B
515BGDY15BG
515SADY15SA
515SACDY15SAC
515SBDY15SB
515SBGDY15SBG
515SB-G18DY15-G18
520SLCR20SLJ
522DY522
524CDY524C
526TDY526T
533SADY33SA
533SACDY33SAC
533SBDY33SB
540DY40
540SDY40S
544DY44
544-G12DY44-G12
544-G18DY44-G18
545DY45
545DDY545D
545LDY45R
545SDY45S
545SCDY45SC
545SDDY45SD
545SD-CNDY45SD-CN
546DY46
548DY48
548SDY48S
548SDDY48SD
548SD-CNDY48SD-CN
556SDY22
560DY60
560CDY60C
561DY61
562DY62
565DY65
565DDY65D
565SDY65S
565SCDY65SC
565SDDY65SD
565SD-CNDY65SD-CN
566DY66
570DY71
570SDY71S
571DY72
572GDY72G
575SDY75S
575SBDY75SB
576DY76
577ADY77A
577BDY77B
577CDY77C
578DY78
579SBDY79SB
580SADY80SA
580SBDY80SB
585SADY85SA
585SACDY85SAC
585SAVDY85SAV
585SAVCDY85SAVC
585SBDY85SB
585SBVDY85SBV
588SADY58SA
588SACDY58SAC
588SBDY58SB
588SB-CNDY58SB-CN
589SDY589S
ES51DY51