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POLAR
PATTERN
Specifi cations
T
he Crown
®
CM-200A is a cardioid condenser
microphone for professional vocal and instru-
mental use. It offers studio-quality sound, yet
is rugged enough to withstand hard professional
use in the fi eld. Its outstanding performance is
complemented with handsome styling and a com-
fortable balance.
The sound of the CM-200A is smooth and non-
harsh – yet very articulate – with a wider frequency
range than standard vocal microphones. When
used up-close, its proximity effect boosts the low-
frequency response for a warm, robust sound. An
upper-midrange “presence peak” adds intelligibility.
The cardioid polar pattern increases gain-before-
feedback, rejects unwanted background noise, and
discriminates against sounds approaching the rear
of the microphone.
A built-in multi-stage pop fi lter effectively sup-
presses explosive breath sounds. Handling noise
is extremely low. The unit can withstand repeated
drops and abuse, as well as extremely loud sound
pressure levels without distortion.
The output of the microphone is balanced, low
impedance, which allows long cable runs without
hum pickup or high-frequency loss. The unit can
be phantom powered from the console or other
remote power supply.
Included with the CM-200A is a convenient carry-
ing pouch, an adjustable microphone stand adapter
for mounting the unit to any microphone stand,
and a foam windscreen to further reduce breath
popping and wind noise.
Operating Instructions
Using a 2-conductor shielded microphone cable
(not supplied), plug the microphone into a mixer
mic input with 12 to 48 volts phantom powering or
use a remote phantom power supply. Crown makes
a PH-1A phantom power supply (1 channel, battery
or AC-adapter powered). For special applications,
you can make your own battery supply as sug-
gested in Fig. 4.
For maximum gain before feedback, sing close to
the microphone (lips touching the grille) and place
loudspeakers forward of the rear of the micro-
phone (downstage from the performer).
Type: Cardioid condenser vocal-instrumental
microphone.
Element: Electret condenser.
Frequency Response (typical): 80 Hz to 15,000 Hz.
See Fig. 1.
Polar Pattern: Cardioid (see Fig. 2).
Impedance: 150 ohms nominal, 200 ohms actual,
balanced. Recommended minimum load imped-
ance 1000 ohms.
Open Circuit Sensitivity (48 V supply): 3.0 mV/Pa*
(–53 dBV/Pa).
Power Sensitivity: –52 dBm/Pa*.
Equivalent Noise Level (self-noise): 21.5 dB SPL
typical (0 dB = .0002 dyne/cm
2
), A-weighted.
S/N Ratio: 72.5 dB at 94 dB SPL.
Maximum SPL for 3% THD: 151 dB SPL with 48V
supply; 143 dB SPL with 12V supply.
Polarity: Positive pressure on the diaphragm pro-
duces a positive voltage on pin 2 with respect to
pin 3 of output connector.
Operating Voltage: Phantom power, 12 to 48 volts
DC, positive voltage on pins 2 and 3 with respect
to pin 1 of output connector.
Current Drain: 1.7 mA.
Materials: Rugged aluminum alloy housing, steel
grille.
Finish: Satin black.
Cable: None supplied; use 2-conductor shielded
microphone cable.
Connector: 3-pin male XLR type.
Safe operating temperature range: –20° to +50° C,
or -4° to +122° F.
Net Weight: 7 oz. (199 g).
Dimensions: See Fig. 3 on reverse side.
Included Accessories: Carrying pouch, ASA-2 micro-
phone stand adapter and WS-4 windscreen.
Optional Accessories: Crown PH-1A phantom
power supply (1 channel, battery or AC adapter
powered).
*1 pascal = 10 dynes/cm
2
= 10 microbars = 94 dB SPL.
Fig. 2
FRONT
REAR
-20
-15
-10
-5
-0
60°
90°
120°
150°180°
210°
240°
270°
300°
0°
30°
330°
1000 Hz
500 Hz
3000 Hz
Polar Response
CM-200A
Features
• Cardioid polar pattern reduces feedback and
background noise
• Smooth, articulate sound with up-close bass
boost
Fig. 1
Frequency in Hz
Frequency Response
–20
–25
–30
–35
20 100 1K
+15
+10
+5
dB
0
–5
–10
–15
10K
180˚, 2 Feet
0˚, 0 Inches
0˚, 2 Feet
• Built rugged for the road
• Handsome styling and comfortable bal-
ance
• Multi-stage pop fi lter, low handling noise
CARDIOID
CONDENSER
MICROPHONE