Crown Audio CM-200A specifications Features, Operating Instructions, Specifications

POLAR

PATTERN

CM-200A

he Crown® CM-200A is a cardioid condenser Tmicrophone for professional vocal and instru- mental use. It offers studio-quality sound, yet

is rugged enough to withstand hard professional use in the field. Its outstanding performance is complemented with handsome styling and a com- fortable balance.

CARDIOID

CONDENSER

MICROPHONE

Features
• Cardioid polar pattern reduces feedback and	• Built rugged for the road
background noise	• Handsome styling and comfortable bal-
• Smooth, articulate sound with up-close bass
	ance
boost	• Multi-stage pop filter, low handling noise

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 filter 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-

Specifications

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/cm2), 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.

Fig. 1

Frequency Response

+15
+10		0˚, 0 Inches
+5
dB 0
–5		0˚, 2 Feet
–10
–15
–20		180˚, 2 Feet
–25
–30
–35			10K
20	100	1K

Frequency in Hz

Fig. 2

Polar Response

330°	0°	30°
	FRONT
300°	-0
	-5	60°
	-10
	-15
	-20
270°		90°
240°		120°
		1000 Hz
		500 Hz
	REAR	3000 Hz
210°	180°	150°

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).

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/cm2 = 10 microbars = 94 dB SPL.