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SPECIFICATIONS
TY Pe
CONTROLLED MAGNETIC@
Frequency Response
200 to 4,000 Hz (see Figure 4)
FRLOTNC* IN l E R l Z
TYPICAL FREQUENCY
RESPONSE
FIGURE 4
Polar Pattern
Omnidirectional
lmpedance (at 1,000 Hz)
404B-Microphone
rating impedance is 150 ohms
(200 ohms actual) for connection to microphone
inputs rated at 19 to 300 ohms
404C-Microphone
impedance is "High" for connec-
tion to high-impedance microphone inputs
Load lmpedance Range
MINIMUM
RECOMMENDED
404B
. . . . . . . . . . . . . . .
,150 ohms
1000 ohms
404C
. . . . . . . . . . . . . . . .
15 kilohms
100 kilohms
Output Level (at 1,000 Hz)
404B
404C
-
-
Open Circuit Voltage*
. . . . . .
-
33.0 dB
-
13.5 dB
(22.5 mV)
(212 mV)
Power Level**
. . . . . . . . . . . .
-52.0 dB
* O dB = 1 volt per 100 microbars
* * 0 dB = 1 milliwatt per 10 microbars
Switch
Built-in, push-to-talk, single-throw double-pole, leaf-
type, to control microphone circuit and relay circuit
Dimensions
See Figure 5
7
t
2.4 mm(3/32 IN.)
0.8 mm(1/32 IN.)
OVERALL DIMENSIONS
FIGURE 5
Cable
404B-1.5m
(5 ft) four-conductor, two conductors
shielded, attached, coiled cable
404C-1.5m
(5 ft) three-conductor, one conductor
shielded, attached, coiled cable
Mounting Bracket
Supplied (see Figure 1)
Case
Gray, high-impact ARMO-DUR@
Net Weight
340 grams (12 oz)
Packaged Weight
482 grams (17 oz)
FURNISHED ACCESSORY
. . . . . . . . .
Mounting Bracket (3 in replacement kit).
RK6MB
OPTIONAL ACCESSORY
. . . . . . . . . . . . .
Line Matching Transformer
.A95 Series
REPLACEMENT PARTS
404
B
404C
-
-
Cartridge
. . . . . . . . . . . . . . . . . . . .
R5E
R5F
Cable
. . . . . . . . . . . . . . . . . . . . . . .
C14C
C12C
Case
. . . . . . . . . . . . . . . . . . . . . . . .
RK1C
90A2990
On-Off Switch
. . . . . . . . . . . . . . . .
RK7S
RK7S
For additional service or parts information, please contact
Shure's Service department at 1-800-51 6-2525. Outside the
United States, please contact your authorized Shure Service
Center.
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