Shure 515SB, 515SA User Manual
GENERAL
Model 515 Series UNIDYNEa B Microphones are cardioid (unidirectional) dynamic units that provide excellent reproduction of voice and music. Their unidirectional pickup pattern greatly reduces feedback problems, permitting operation closer than usual to
loudspeakers without the annoying squeal or howl
caused by feedback. Suppression of feedback, combined with their smooth sound, makes the
Microphones ideal for use by small groups, instrumentalists, and vocalists in theaters, night clubs, schools,
and churches.
The microphones are equipped with an On-Off switch
with a lockplate for locking the switch On. A slip-in
swivel adapter is supplied for convenience of either
handheld or stand mounted use. The UNIDYNE B Series
are available as high-impedance models,
impedance models, 515SB, to match every sound
system.
Microphone Features:
w
Cardioid pickup pattern, symmetrical about axis and
uniform at all frequencies for maximum feedback
suppression
Smooth frequency response, with presence peak, for
optimum voice and speech intelligibility
w
Built-in On-Off switch with provision for locking
switch On
w
Shock-mounted cartridge for quiet operation
w
Adjustable swivel adapter permits aiming
microphone to desired location stand mounted, or
quick removal handheld
w
Versatile and rugged- used handheld or stand
mounted, indoors or outdoors, will provide years of
trouble free, faithful performance
UNIDYNE B
515SA, or low-
SPECIFICATIONS
Type
Dynamic
Frequency Response
80 to 13,000 Hz (See Figure 1)
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I11
HERTZ
TYPICAL FREQUENCY RESPONSE
FIGURE
1
MODELS 515SA AND 515SB
UNIDIRECTIONAL DYNAMIC MICROPHONES
Polar Pattern
Cardioid (unidirectional)-uniform with frequency,
symmetrical about axis (See Figure
--
160
HZ
-
400
HZ
.....
1000
TYPICAL DIRECTIONAL PATTERNS
Impedance
515SA-Microphone impedance is "High" for con-
nection to high-impedance microphone inputs
515SB-Microphone rating impedance is 150 ohms
(170 ohms actual) for connection to microphone inputs rated at 19 to 300 ohms
Output Level (at 1,000 Hz)
Open Circuit Voltage*
Power Level
*O dB = 1 volt per microbar
**0 dB = 1 milliwatt per 10 microbars
Phasing
Positive pressure on the diaphragm produces
positive voltage on the cable shield in Model 515SA,
on the red cable lead in Model 515SB.
Switch
Built-in On-Off switch with lockplate. To lock switch
in On position, remove screw on lockplate and turn
lockplate 180°. Reassemble and tighten screw.
Cartridge Shock Mount
Internal rubber vibration-isolator
"2
FIGURE
*
*
.
. . . .
. .
. . . .
. . . .
2
-59.0 dB
(1
2)
---
8500
HZ
-
6300
HZ
.-.--10.000
HZ
51 5SA 515SB
-82.5 dB
.I
mV) (.074 mV)
-61.0dB
C
3
0
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gW
02
2
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0
0
2
2
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Copyright
27A2244
1989,
Shure Brothers Inc.
(IJ)
222 HARTREY AVENUE, EVANSTON, ILLINOIS 60202-3696 U.S.A
Cable
4.6m (15 ft) attached. 515SA: Single-conductor terchanged (see Figure
shielded;
standard
shielded
Swivel Adapter FURNISHED ACCESSORY
Positive action, adjustable through 90' from vertical
to horizontal, permits easy removal for handheld use,
suitable for mounting on stand with
Case
Silver finish die casting with black ARMO-DUR@ grille
and stainless steel screen Line Matching Transformer A95 Series
Dimensions
See Figure 3
Net Weight
515SA-454 grams (1 Ib 2 oz)
51588 -624 grams (1 Ib 6 oz)
Shipping Weight
515SA-680grams(1 Ib8oz)
515SB-794 grams (1 Ib 12 oz)
To test two microphones for proper phasing, connect
them to an amplifier and talk or sing into them while
holding them three or four inches apart. The sound from
the speakers should be the same when talking into
either microphone or directly between them if they are
in phase with each other. If the sound drops drastically,
or if a dead spot is found when talking between the two
microphones, the microphones are out of phase. All
microphones should be tested in this manner to insure
that they are in phase with each other.
To change the phase of a low-impedance microphone
at the equipment end of the cable, interchange the
BLACK and RED cable leads where they are connected
to the sound system. To change the phase in the
515SAC: Single-conductor shielded with your dealer, the Shure Factory Service Department, or
'/i
in. phone plug; 515SB:
164
rnm
(6-15/32
N)
.
OVERALL DIMENSIONS
FIGURE
PHASING
INTERNAL CONNECTIONS
FIGURE
1
3
4
Two-conductor other qualified service personnel.
YE"-27 thread
microphone, the microphone cartridge leads must be in-
4).
This should be performed by
Swivel
Adapter
Windscreen
Dual Mount
Desk Stand
Vibration-Isolation Stand
Quick Disconnect Adapter
Cartridge R15
Cable: 515SA C62
51 5SAC .90A2013
515SB
Screen and Grille Assembly RK54G
On-Off Switch
The microphone shall be Shure Model 515SA, 515SB,
or equivalent. The microphone shall be a moving coil
(dynamic) type with a frequency response of 80 to
13,000 Hz. The unit shall have a cardioid polar
characteristic. The cancellation at the sides shall be approximately
be 15 to 20 dB.
Model
to high impedance microphone inputs.
Model
pedance of 150 ohms for connection to microphone inputs rated at 19 to 300 ohms.
The microphone output shall be:
515SA
(0 dB = 1 volt per microbar)
515SB
(0 dB = 1 milliwatt per 10 microbars)
The microphone shall be equipped with a built-in
Off switch. The microphone shall be provided with a
swivel adapter, adjustable through
horizontal, and suitable for mounting on a stand having
a
5/8"-27 thread. The microphone shall be equipped with
a nondetachable
515SA shall be one-conductor shielded, for Model
515SB shall be two-conductor shielded.
The overall dimensions of the microphone shall be
164 mm (6-15132 in.) in length and 37.5 mm (1-15132 in.) in
diameter.
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OPTIONAL ACCESSORIES
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S37AS33B
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REPLACEMENT PARTS
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ARCHITECTS' SPECIFICATIONS
6
dB, and the cancellation at the rear shall
515SA shall be high impedance for connection
515SB shall be low impedance with a rated im-
..........................
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4.6m (15 ft) cable. The cable for Model
-59.0dB
-61.0dB
90° from vertical to
.A25B
A1WS
.A26M
S39A
A45
C63
RK57S
On-
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