Shure EZB Specification Sheet
EASYFLEX EZB SERIES MICROPHONES
MODEL VARIATIONS
EZB/C: EZG series microphone with cardiod polar pattern.
EZO/G: EZG series microphone with omnidirectional polar pattern.
Easyflex EZB Series Microphones
Specification Sheet
OVERVIEW
Shure Easyflext EZB Series microphones are small, surface
mounted electret condenser microphones designed for mounting on
conference tables, stage floors, and lecterns. Their wide frequency
range makes them especially suitable for picking up speech and vocals in sound reinforcement and recording applications.
FEATURES
S Flat frequency response across the vocal range for uncolored
sound.
S Sleek, low-profile design for unobtrusive appearance.
S In-line preamp reduces visible size of microphone
S Available in either cardiod or omnidirectional models
SPECIFICATIONS
Frequency Response (Figure 1)
50 to 17,000 Hz
Polar Pattern (Figure 2)
Cardioid or Omnidirectional
Output Impedance (at 1 kHz)
Rated at 150 Ω (170 Ω actual)
Open Circuit Sensitivity
(at 1 kHz, ref. 1 V/Pascal*)
Cardioid: –39.0 dB (11.2 mV)
Omni: –34.0 dB (20.0 mV)
*1 Pascal = 94 dB SPL
Maximum SPL
(1 kHz at 1% THD, 1 kΩ load)
Cardioid: 122.5 dB
Omni: 117.5 dB
Maximum Equivalent Output Noise
(A-weighted at 1kΩ load)
Cardioid: 23.0 dB
Omni: 17.5 dB
Signal to Noise Ratio
(referenced to 94 dB SPL)
Cardioid: 71.0 dB
Omni: 76.5 dB
Dynamic Range (at 1 kΩ Load)
Cardioid: 99.5 dB
Omni: 100.0 dB
Common Mode Rejection
45 dB minimum
Preamplifier Output Clipping Level
(1 kHz at 1% THD, 1 kΩ load)
–12.0 dBV (0.25 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)
2–15/16” L x 2–1/16 W x 17/32” H
Weight
1lb
REPLACEMENT PARTS
Foam windscreen, charcoal RPM312
Foam windscreen, white RPM314
E2002, Shure Incorporated
EASYFLEX EZB SERIES MICROPHONES
CARDIOID
dB
+10
0
–10
OMNI
Specification Sheet
o
o
150
o
120
o
90
o
60
180
–20 dB
–10 dB
150
o
o
120
o
90
o
60
50 100 20020
500 1K 2K 5K 10K
Hz
TYPICAL FREQUENCY RESPONSE
FIGURE 1
5.232 cm
(2.060 in.)
3.04 cm
(1.197 in.)
20K
CARDIOID
OMNI
3.96 cm
(1.562 in.)
o
30
0
30
o
1000 Hz
TYPICAL POLAR PATTERNS
FIGURE 2
3.175 cm
(1.250 in.)
DIMENSIONS
FIGURE 3
Architects’ and Engineers’ Specifications
The microphone shall be a gooseneck–mounted electret condenser microphone with a cardiod polar pattern. The microphone shall
have wide frequency response and a high sensitivity , making it ideal for use in challenging sound reinforcement and recording environments.
The microphone shall include an external preamplifier.
The microphone shall be designed for overhead mounting, with a flexible wireform body allowing easy aiming and repositioning. The
microphone shall be available in both white and charcoal gray to blend with any surrounding. The microphone shall include a slide-on windscreen.
The microphone shall be of the Shure Easyflex EZB series.
2
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