Shure 588SD Quick Start Manual

GENERAL
The Model 588SD Unisphere Microphone is a ball-
type dual-impedance, cardioid (unidirectional) dynamic
unit that provides excellent reproduction of voice and
music. Its spherical grille is a very effective wind and
pop filter especially good when used for closeup vocal
miking. This microphone is highly suited for speech or
music pickup in schools, churches, and meeting rooms,
and for sound reinforcement, broadcast, or recording of
small musical groups. Its unidirectional polar pattern
greatly reduces feedback problems, permitting opera-
tion closer than usual to loudspeakers without the an-
noying squeal or howl caused by feedback.
The microphone is equipped with a combination
OnlOff and Im~edance-Selection switch with a
lockplate preven'ting inadvertent switching to the
undesired impedance. A slip-in swivel adapter is sup-
plied for the convenience of either handheld or stand-
mounted use. The microphone is supplied without a
cable, packaged as Model 588SD-LC.
Microphone Features:
Wide frequency response designed for faithful, in-
telligible, and natural pickup of voice or music
Symmetrical cardioid pickup pattern minimizes
feedback
Spherical grille provides effective filtering out of
breath popping, when used for closeup vocals, and
of wind noise, when used outdoors
Rolled-off low-frequency response reduces prox-
imity effect (response rise from microphones used
closeup)
Shock-mounted cartridge for quiet operation, low
stand or handling noise
Combination OnlOff and Impedance-Selection
switch, with provision for locking out undesired im-
pedance and locking switch On
Slip-in swivel adapter for easy positioning and for
simple handheld or stand-mounted use
Three-pin professional audio connector, the industry
standard, for maximum interchangeability of cables
Field serviceable, and backed by the Shure
guarantee
SPECIFICATIONS
Type
Dynamic
Frequency Response
80 to 13,000 Hz (see Figure 1)
+I0
' u
5
-10
I
20 50 IW 1.000
FREWENCV IN HERTZ
I0,OW 2 0 p
TYPICAL FREQUENCY RESPONSE
FIGURE 1
MODEL 588SD
UNIDIRECTIONAL DYNAMIC MICROPHONE
Polar Pattern
Cardioid (unidirectional)-uniform with frequency,
symmetrical about axis (see Figure 2)
---
160 HZ
---
2 5 0 0 H Z
-
4 0 0 HZ
-
6300 H Z .....
1000 HZ
.....
1 0 . 0 0 0 HZ
TYPICAL POLAR PATTERNS
FIGURE 2
Impedance
LO Z: Microphone rating impedance is 150 ohms
(180 ohms actual) for connection to microphone in-
puts rated at 75 to 300 ohms
HI Z: Microphone impedance is "High" for connec-
tion to high-impedance microphone inputs
Output Level (at 1,000 Hz)
LO Z HI Z
Open Circuit Voltage*.
. . . . .
-82.0 dB -59.5 dB
(0.08 mV) (1.1 mV)
Power Level**
. . . . . . . . . . .
.
-60.5 dB
*O dB
=
1Vlpbar
* * 0 dB
=
1 mWllO pbar
Phasing
Positive pressure on the diaphragm produces positive
voltage:
on pin 2 with respect to pin 3- LO Z;
on pin 1 with respect to pin 3-HI Z
Switch
Built-in OnIOff, Impedance-Selection switch with
lockplate to lock out undesired impedance, and
option to lock switch On
Connector
Three-pin professional (XLR) type
Cartridge Shock Mount
Internal rubber vibration-isolator
222 HARTREY AVENUE, EVANSTON, ILLINOIS 60202-3696 U.S.A. TELEPHONE: (312) 866-2200 CABLE: SHUREMICRO
Copyright 1985, Shure Brothers Inc.
27A2257 (EL) Printed in U.S.A.