Shure 414B, 414A User Guide
222
HARTREY AVENUE
SnUe
THE
SOUND OF THE PRoFEssIoNALs~ WORLDWIDE
@
EVANSTON, ILLINOIS
60202-3686
MICROPHONES AND ELECTRONIC COMPONENTS
CONTROLLED MAGNETIC@ HAND MICROPHONES
GENERAL
The Model 414 Series Ranger
phones are small size, CONTROLLED MAGNETICm
units designed for clear, crisp, natural voice response of
high intelligibility.
Microphone Features:
Frequency response from 200 to 5,000 Hz, especially
tailored for voice communications use
Small, light and compact case, takes minimum
space in portable equipment, fits comfortably and
firmly in the palm of the hand
Extremely rugged high impact ARMO-DURm case,
both lighter and stronger than die-cast metal, comfortable to the touch in hot or cold weather
Single-throw double-pole leaf-type switch designed
to stand up under rigorous operating conditions and
constant usage
Long-life rubber-jacketed coil cord
Ruggedness and dependability under all operating
conditions
APPLICATIONS
The Model 414 Series microphones are especially
recommended for all types of outdoor-indoor communication activity: in
mobile
arrd
police, fire, utility, forestry, and transportation
services), and in commercial and industrial applications-including radiotelephone, amateur radio, and
similar uses. The microphones are also suitable for indoor and outdoor public address.
Model 414A is a high-impedance microphone with
high output level, making it suitable for connection to
high-impedance amplifier inputs when cable lengths of
15.2m (50 ft) or less are needed.
The
4148 is a low-impedance microphone and is
recommended when long cable lengths are required or
under conditions where severe hum pickup may exist.
The Model
4148 may be connected directly to the input
of a low-impedance amplifier, or a Shure Model A95
Series Line Matching Transformer may be used for
coupling the Model
4148 to the input of a high-
impedance amplifier.
INSTALLATION AND CONNECTIONS
A mounting bracket for permanent installation is sup-
plied with each microphone. (See Figure 1)
MOUNTING BRACKET
FIGURE
ftxd
1
II
handheld micro-
station
me
414B are shown in Figure 2.
(as in
CODED
three-conductor coiled-cord cable (one conductor
shielded) and a double-pole
switch to control the microphone circuit and an external
relay or switching circuit. The WHITE lead is the "hot"
conductor for connection to the microphone circuit; the
shield is connected to the microphone circuit ground.
The RED and BLACK leads control the relay or switching circuit.
four-conductor coiled-cord cable (two conductors
shielded) and a double-pole single-throw leaf-type
switch to control the microphone circuit and an external
relay or switching circuit. The GREEN and WHITE leads
are the "hot" conductors for balanced-line connection
to the microphone circuit; the shield is connected to the
microphone circuit ground. The RED and BLACK leads
control the relay or switching circuit.
U
S A
DATA SHEET
MODEL
414A
AND
414B
The internal switch connections of Models 414A and
Model 414A Model 41 4B
INTERNAL CONNECTIONS
FIGURE
2
Model 414A is a high-impedance microphone with a
single:throw leaf-type
Model 414B is a low-impedance microphone with a
Copyright
27A2463
1989,
Shure Brothers
(IL)
Inc
Printed
in U.S.A.
SPECIFICATIONS
Type
CONTROLLED MAGNETICB
Frequency Response
200 to 5,000 Hz (see Figure 3)
TYPICAL FREQUENCY RESPONSE
FIGURE
3
Cable
414A-1.8m (6 ft) three-conductor, one conductor
shielded, attached coiled cable
414B
-
1.8m (6 ft) four-conductor, two conductors
shielded, attached coil cable
Mounting Bracket
Supplied (see Figure 1)
Case
High impact ARMO-DUR@
Dimensions
See Figure 4
lmpedance
414A-Microphone impedance is "High" for connection to high-impedance microphone inputs.
414B-Microphone rating impedance is 150 ohms
(200 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms.
Load lmpedance Range
414A
4148
Output Level
Open Circuit Voltage* . -11.5 dB -31.0 dB
Power Level
*O dB = 1 volt per 100 microbars
**0 dB
Switch
Built-in double-pole single-throw leaf-type to control
microphone circuit and relay circuit
(at 1,000 Hz)
Minimum Recommended
...............
...............
(at 1,000 Hz)
15 kilohms 100 kilohms
150 ohms 1,000 ohms
(266
*........
=
1 milliwatt per 10 microbars
414A
mV) (28 mV)
4148
-51.0 dB
19
rnrn
(3/4
IN.)
OVERALL DIMENSIONS
FIGURE
Net Weight
227 grams (8 oz)
Shipping Weight
369 grams (13 oz)
FURNISHED ACCESSORY
Mounting Bracket (3 in replacement kit)
OPTIONAL ACCESSORY
Line Matching Transformer
REPLACEMENT PARTS
Cartridge
Cable
On-Off Switch
............. R14A
...............
.........
4
..............
414A 414B
C24C C25C
90B1008 RK15S
..........
A95 Series
R14B
RKGMB
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