Shure Unidyne B 515BG Datasheet

2 2 2 HARTREY AVE.. EVANSTON, IL. 6 0 2 0 4 U.S.A.
MODEL 515BG
AREA CODE 3 1 z / 8 6 6 - 2 ~ 0 0
.
CABLE: SHUREMICRO
UNIDYNE@ B
TWX: 9 1 0 - 2 3 1 - 0 0 4 8 TELEX: 7 2 - 4 3 8 1
I
UNIDIRECTIONAL DYNAMIC MICROPHONE
GENERAL
The Shure Model 515BG UNIDYNEB B Microphone
is a low-impedance unit designed specifically for
mounting on %"-27 thread arm or gooseneck. The
microphone is a moving coil unit providing good
reproduction of music and voice.
This microphone is particularly suitable for use in
language lab systems, paging applications, and base
station communications. It is highly recommended for
talk-back and cuing from professional control rooms
in TV, film, and recording studios, and other uses de-
manding a customized installation with concealed
cables.
Microphone Features:
True cardioid pickup pattern: symmetrical about MODEL 515BG
axis and uniform at all frequencies
MOUNTED ON
Response especially effective for announcing,
GOOSENECK
narration, paging and music
Cartridge shock mounted for quiet operation
Dependability and ruggedness under all oper-
ating conditions
A %"-27 thread for mounting to a gooseneck
SPECIFICATIONS
TY pe
Dynamic
Frequency Response
o o
80 to 13,000 Hz (see Figure 1)
---
160 H Z
---
2500 H Z
-
400 H Z
-
6300 H Z
.....
1000 H Z
.....
1 0 . 0 0 0 H Z
TYPICAL DIRECTIONAL PATTERNS
FIGURE 2
Output Level (at 1000 Hz)
Open Circuit Voltage . . . .
. . -
82.0 dB (.079 mV)
(0 dB = 1 volt per microbar)
20
m
IM) 1.000 10.000 2 0 m
FREwENcY IN
HERTZ
Power Level
. . . . . .
. .
.
.
.
.
. .
-
60.5 dB
TYPICAL FREQUENCY RESPONSE
FIGURE 1
Polar Pattern
Cardioid (unidirectional) pattern-Effective rejection
of sound at the rear of the microphone is uniform
at all frequencies, while front pickup characteristics
are uniform about the axis (see Figure 2)
Impedance
Microphone rating impedance is 150 ohms (170
ohms actual) for connection to microphone inputs
rated at 19 to 300 ohms.
(0 dB = 1 milliwatt per 10 microbars)
Shock Mount
Internal rubber vibration-isolator
Cable
Highly durable attached cable with effective hum
shielding. 1.8 meters (70 inches) two-conductor
(shielded), plastic jacketed
Case
Silver finish die casting with black ARMO-DUR@
grille and stainless steel screen
Copyright 1981, Shure Brothers Inc.
27A1494
(Al)
(OVER)
U.S.
Patents
3,132,713
a n d
3,240,883
Printed i n
U.S.A.