Shure EZO Specification Sheet
EASYFLEX EZO SERIES MICROPHONES
SPECIFICATIONS
Frequency Response (Figure 1)
50 to 17,000 Hz
Polar Pattern (Figure 2)
Cardioid
Output Impedance (at 1 kHz)
EIA Rated at 150 Ω (180 Ω actual)
Open Circuit Sensitivity
(at 1 kHz, ref. 1 V/Pascal*)
–45.7 dB (5.19 mV)
*1 Pascal = 94 dB SPL
Maximum SPL
(1 kHz at 1% THD, 1 kΩ load)
129 dB
Equivalent Output Noise
(A-weighted)
29 dB SPL
Signal to Noise Ratio
(referenced at 94 dB SPL)
65 dB
Dynamic Range at (1 kΩ load)
100 dB
Common Mode Rejection
45 dB minimum
Easyflex EZO Series Microphones
Specification Sheet
OVERVIEW
Use the Easyflex t EZO series miniature overhead micro phones for choirs and performance groups in recording or
sound reinforcement applications. These electret condenser
microphones have a wide frequency r ange a nd h igh s ensitivity.
Designed for overhead suspension from a ceiling or other fix ture, the a ttached w ireform a llows t hem t o b e e asily a imed a t t he
sound source.
FEATURES
S Wide dynamic range and frequency response for accurate
sound reproduction across the audio spectrum
S White or Charcoal Gray finish that blends unobtrusively
with most surroundings
S Flexible wire form for ease of aiming
S In-line preamp reduces visible size of microphone
S Slide on windscreen
Preamplifier Output Clipping Level (1kHz @ 1%THD, 1
kΩ load)
–12.0 dBV (.25 V)
Polarity
Positive sound pressure on diaphragm produces positive
voltage on pin 2 relative to pin 3 of output connector.
Power Requirements
11 to 52 Vdc phantom, 2.0 mA
Environmental Requirements
Operating Temperature Range: –18° C to 57° C (0° F to
135° F)
Relative Humidity: 0 to 95%
Dimensions (Figure 3)
CERTIFICATION
Eligible to bear CE Marking. Conforms to European EMC Directive 89/336/EEC. Meets applicable tests and performance criteria in European Standard EN55103 (1996) parts
1 and 2, for residential (E1) and light industrial (E2) environments.
REPLACEMENT PARTS
Foam windscreen, charcoal RPM312
Foam windscreen, white RPM314
E2002, Shure Incorporated
EASYFLEX EZO SERIES MICROPHONES
Specification Sheet
+10
0
–10
RELATIVE RESPONSE (dB)
50 100 20020
500 1,000 2,000 5,000 10,000
FREQUENCY (Hz)
TYPICAL FREQUENCY RESPONSE
Figure 1
14.0 mm
11.7 mm
(0.46 in.)
(0.55 in.)
90
20,000
120
o
90
60
CARDIOID
180
o
o
o
150
o
30
120
–20 dB
–15 dB
–10 dB
–5 dB
o
0
o
o
90
o
60
2500 Hz
6400 Hz
10000 Hz
o
150
o
90
o
30
o
180
o
150
o
120
o
–20 dB
o
60
–15 dB
–10 dB
–5 dB
o
30
0
250 Hz
500 Hz
o
150
o
120
o
90
o
60
o
30
1000 Hz
TYPICAL POLAR PATTERNS
Figure 2
5.8 mm
(0.23 in.)
19.0 mm
(0.75 in.)
123.1 mm
(4.84 in.)
DIMENSIONS
Figure 3
59.1 m
(30.0 ft.)
2
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