Windscreens

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Compatibility chart

　 CMC
+ capsule		 CCM-L CCM-U capsule
on KC		 RC RCY MSTC CMXY
B 1* X X X X X 　 n.r. 　
B 5 X X X X X 　 X 　
W 5 X X X X X 　 X 　
　 　 　 　 　 　 　 　 　
B 20 X X X X X 　 X 　
B 20 S X X X X X 　 X 　
W 20 X X X X X 　 X
W 20 R1 X X n.r. n.r. X 　 X 　
　 　 　 　 　 　 　 　 　
BBG X n.r. n.r. n.r. 　 　 X 　
WSR 100 　 X 　 　 　 　 　 　
WSR MS 　 X X X 　 　 　 　
WSR CMXY 　 　 　 　 　 　 　 X
　 　 　 　 　 　 　 　 　
B 5 D** X X X X X 　 X 　
W 5 D*** X X 　 　 X 　 X 　
WMS X X X X 　 X 　 X
WB X X X X 　 　 　 　

* Primary function: protection against dust deposits

** Cannot be used with MK 6 or MK 8 or corresponding CCM Compact Microphones.
With MK / CCM 4V, 4VXS und 41V: See B 5 D

*** Cannot be used with MK 4V, 4VXS, 41V, 6 or 8 or corresponding CCM Compact Microphones.

n.r.: not recommended

Note
For a given strength of wind, the noise level produced in a pressure transducer will always be distinctly less than that produced in a pressure gradient transducer. Thus when wind might be a problem, we recommend using an omnidirectional microphone where possible, rather than (for example) a cardioid. In addition, a low-cut filter (CUT 1 or LC 60) should be used to suppress the wind noise even further. An omnidirectional microphone with this type of low-frequency cut can still have better low-frequency response than a cardioid; any cardioid has an inherent low-frequency response rolloff, and that rolloff is only accentuated by the use of a windscreen.

　

Technical specifications

Attenuation of the A-weighted wind-noise level compared to the unprotected transducer at a wind speed of 18 km/h (ca. 11 mph) and absolute wind noise level...
... with pressure gradient transducer (CMC 641 / CCM 41*)

attenuation wind noise type of windscreen diam. in mm
0 dB-A 130 dB-A no windscreen -
20 dB-A 110 dB-A B 5 45
26 dB-A 104 dB-A B 20 50
28 dB-A 102 dB-A W 5 90
32 dB-A 98 dB-A B 5 D 50
34 dB-A 96 dB-A B 20 S 50
38 dB-A 92 dB-A W 20 80
44 dB-A 86 dB-A BBG 100
44 dB-A 86 dB-A WSR 100 100
46 dB-A 84 dB-A W 5 D 90
51 dB-A 79 dB-A W 20 R1 90
52 dB-A 78 dB-A WSR MS 150
57 dB-A 73 dB-A BBG with Windjammer 100+
57 dB-A 73 dB-A WSR 100 with Windjammer 100+
62 dB-A 68 dB-A WSR MS with Windjammer 150+

* The corresponding values for the cardioid (CMC 64 or CCM 4) are consistently 2 to 5 dB better; for the wide cardioid (CMC 621 or CCM 21) the difference is 5 to 7 dB.

Type designation CMC 641 / CCM 41 * CMC 68 / CCM 8 　
WB - 21 dB-A attenuation 　
WMS 32 dB-A attenuation 27/ 36 dB-A attenuation (side/ end face) 　

　

... with pressure transducer (CMC 62 / CCM 2)

attenuation wind noise type of windscreen diam. in mm
0 dB-A 110 dB-A no windscreen -
25 dB-A 85 dB-A B 20 50
27 dB-A 83 dB-A B 20 S 50
28 dB-A 82 dB-A B 5 45
29 dB-A 81 dB-A W 20 80
35 dB-A 75 dB-A B 5 D 50
37 dB-A 73 dB-A WSR MS 150
38 dB-A 72 dB-A W 5 90
40 dB-A 70 dB-A W 5 D 90
41 dB-A 69 dB-A BBG 100
41 dB-A 69 dB-A WSR 100 100
43 dB-A 67 dB-A W 20 R1 90
47 dB-A 63 dB-A WSR MS with Windjammer 150+
53 dB-A 57 dB-A BBG with Windjammer 100+
53 dB-A 57 dB-A WSR 100 with Windjammer 100+

　

Type Overview

Popscreens

for

PR 120 S; for microphones with axial pickup

PR 120 SV; for microphones with lateral pickup
Foam-Type Windscreens

for

B 1; light close-speech guard;
protection against rosin deposit (see violin adapter)

B 5; close-speech guard for mild wind

W 5; windscreen for strong wind
Basket-Type Windscreens

for

B 20; close-speech guard

B 20 S; close-speech guard

W 20; windscreen for medium wind

W 20 R1; windscreen for strong wind

BBG; for strong wind

WSR MS (see also: M/S system); for strong wind;
for mono and M/S stereo

WSR 100 LU; for CCM-L
Hollow
Foam-type
Windscreens

for

B 5 D; close-speech guard; for mild wind

W 5 D; windscreen for stronger wind
Special
Foam-type
Windscreens

WMS; for M/S stereo; for mild wind

WB; for Blumlein stereo; for mild wind

WKFM; for sphere microphone KFM 6

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