Crown CM-10 Quick Reference

Microphone Quick Reference
@crown
®
CM-10/CM-10E Lavalier Mic

CM-10/CM-10E

The Crown ® CM-10 is an omnidirectional
electret condenser lavalier microphone of
professional quality. It is appropriate for use
in professional broadcasting and sound
reinforcement applications. The CM-10 fea-
tures a very smooth, wide-range frequency
response for natural reproduction of the
voice. The response rises at high frequen-
cies to compensate for the mic being off-
axis to the mouth, and rolls off below the
voice range to reduce pickup of low-fre-
quency noises. A rugged tie mount clips
securely to the tie or shirt, and the capsule
can be inserted for use on the left or right
side. The cable exits from the side of the
capsule and can be easily hidden.
The CM-10 mic is low impedance and is
supplied with a tubular power module and
requires phantom power. The CM-10E is
medium impedance and is supplied with-
out a connector so that it may be wired to
the wireless transmitter of your choice. The
unterminated cable is four feet long. Both
models are black. The CM-10/10E is shown
in Fig. 1 and the CM-10 electronics are
shown in Fig. 2. The connector on the CM-10
is a standard male XLR with an eight foot
cable.
To use the mic clip the it on a tie or clothing
about eight inches (20 cm) below the chin.
An optional dual clip is available from your
dealer for redundant miking.

Operation

To use the CM-10 simply connect the mic to
a 12 to 48 VDC phantom power supply.
To use the CM-10E with a wireless transmit-
ter you must solder the mic cable to the
connector that mates with your transmitter.
The yellow lead goes to the transmitter
high-Z audio-in. The black lead and shield
go to transmitter ground. Install a 2.2 Kohm
resistor between transmitter audio-in and
B+. B+ should be 1.1 to 10 volts DC. For
wiring information on specific transmitters
you may request Technical Bulletin #3, Con-
nections for Wireless Microphone Applica-
tions.

Warranty

Crown professional microphones are guar-
anteed unconditionally against malfunction
from any cause for a period of three years
from date of original purchase. If such mal-
function occurs, microphone will be repaired
or replaced (at our option) without charge
for materials or labor. If the unit fails to work,
first check the mic cables and phantom
power supply. If the microphone seems to
be defective, return the microphone in its
original packaging to Crown's Service De-
partment at 57620 CR 105, Elkhart, IN
46517. For further assistance or technical
support call 800-342-6939. If just the mic
capsule or its cable seem to be defective,
you might want to order a replacement from
Crown's Parts Department. Phone 800-342-
6939 and ask for the Parts Department.
Order a CM-10 capsule/cable assembly,
part no. M46398-0.

Specifications

Element: Electret condenser.
Frequency response (typical):
CM-10: 60 Hz to 15 kHz (see Fig.
3). CM-10E: 20 Hz to 15 kHz.
Polar pattern: Omnidirectional. (See Fig. 4.)
Impedance (CM-10): 200 ohms, balanced.
Recommended minimum load impedance
1000 ohms.
Impedance (CM-10/E): 1.6 Kohms. Recom-
mended minimum load impedance 10
Kohms.
Open-circuit sensitivity (CM-10): 2.6 mV/Pa*
(–51.5 dB re 1 V/Pa*).
Open-circuit sensitivity (CM-10/E): 7 mV/Pa*
(–43 dB re 1 V/Pa*).
Power sensitivity: –50.5 dB re 1 mW/Pa*.
Equivalent noise level: 32 dB SPL typical (0
dB=.0002 dyne/cm 2 ), A-weighted.
S/N ratio: 58 dB minimum at 94 dB SPL.
Maximum SPL at 3% THD: 120 dB SPL.
Operating voltage: CM-10: 12 to 48 VDC
phantom power with positive voltage on
pins 2 and 3 with respect to pin 1 of output
connector. CM-10E: 1.1 to 10 VDC on yellow
lead with respect to black lead and shield.
Current drain: CM-10: 2mA. CM-10E: 400µa.
Materials: Rugged plastic microphone hous-
ing and steel grille; steel power module.
Finish: Black.
Weight (minus power module): 0.4 oz (11.3
g).
Weight (with tubular power module): 2.2 oz
(62.3g).
Cable: CM-10: 8 feet long, 2-conductor
shelded. No other cable supplied; use 2-
conductor shielded mic cable. CM-10E: 4
feet long, 2-conductor shielded.
Dimensions: See Fig. 1. Tubular power mod-
ule is 4.6" long by .750" diameter.
Included accessories: WS-11 foam
windscreen, CM-10 lavalier clip.
Replacement parts:
WS-10 foam windscreen, part no. D 8536-1.
CM-10 tie clip, part no. D 8608-8. Dual clip
D8607-0. CM-10 capsule/cable assembly,
part no. M46398-0.
*1 pascal = 10 microbars = 10 dynes/cm
94 dB SPL.
.
985"
(2.502 cm)
Fig. 1 CM-10/10E Capsule Lav View
HOUSING
NUT
GROMMET
CABLE
FLEX RELIEF
Fig. 2 CM-10 Electronics View
Frequency in Hz
+15
+10
+5
dB 0
-5
-10
-15
-20
-25
-30
-35
20 100
Fig. 3 Frequency Response
330°
300°
270°
240°
210°
Fig. 4 Polar Response
[
Guaranteed Excellence
Crown International, Inc.
PO Box 1000 Elkhart, IN 46515-1000
Ph. 800-342-6939/219-294-8200
Fax. 219-294-8301
Auto-Fax: 800-294-4094/219-293-9200
http://www.crownintl.com
Trademark Notice:
Crown ® is a registered trademark of Crown Inter-
2 =
national Inc.
.310"
(0.787 cm)
.425"
(1.080 cm)
CIRCUIT
BOARD
SH+BK
YEL
CONNECTOR
CABLE
PINS
10K
1K
0° 30°
FRONT
-0
60°
-5
-10
-15
-20
90°
120°
20 Hz–6 kHz
10 kHz
REAR
180° 150°