Easyflex EZO Series Microphones
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
OVERVIEW
Use the Easyflext EZO series miniature overhead microphones for choirs and performance groups in recording or sound reinforcement applications. These electret condenser microphones have a wide frequency range and high sensitivity. Designed for overhead suspension from a ceiling or other fixture, the attached wireform allows them to be easily aimed at the sound source.
FEATURES
SWide dynamic range and frequency response for accurate sound reproduction across the audio spectrum
SWhite or Charcoal Gray finish that blends unobtrusively with most surroundings
SFlexible wire form for ease of aiming
SIn-line preamp reduces visible size of microphone
SSlide 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 |
RELATIVE RESPONSE (dB)
180o
150o
+10
120o
0
90o
–10
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60o |
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20 |
50 |
100 |
200 |
500 |
1,000 |
2,000 |
5,000 |
10,000 |
20,000 |
30o |
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FREQUENCY (Hz)
TYPICAL FREQUENCY RESPONSE
Figure 1
14.0 mm
(0.55 in.)
11.7 mm
(0.46 in.)
19.0 mm
(0.75 in.)
123.1 mm
(4.84 in.)
DIMENSIONS
Figure 3
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180o |
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150o |
150o |
150o |
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120o |
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120o |
120o |
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90o |
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90o |
90o |
90o |
–20 dB |
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–20 dB |
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–15 dB |
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60o |
–15 dB60o |
–10 dB |
60o |
–10 dB |
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–5 dB |
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–5 dB |
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30o |
30o |
30o |
0 |
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0 |
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250 Hz |
CARDIOID |
2500 Hz |
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500 Hz |
6400 Hz |
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1000 Hz |
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10000 Hz |
TYPICAL POLAR PATTERNS
Figure 2
5.8 mm
(0.23 in.)
59.1 m
(30.0 ft.)
2