Shure UNIDYNE 580SA, UNIDYNE 580SB Datasheet

222 HARTREY AVE.. EVANSTON. IL. 60204 U.S.A.

MODELS 580SA

AREA CODE 312/866.2200 . CABLE: SHUREMICRO

SHEET

and

580SB UNIDYNEB A

TWX: 910-231.0048 TELEX: 72-4381

1

DATA

I

UNIDIRECTIONAL DYNAMIC MICROPHONES

GENERAL

The Model 580 Series

UNIDYNEB A Microphones are
moving coil dynamic units built to provide wide range
reproduction of music and voice and featuring an ex­cellent unidirectional microphone pickup pattern. These
unidirectional microphones are ideal for quality public
address, theater-stage sound systems, recording, and
other sound reinforcement applications.

Microphone Features:

rn

Exceptional true cardioid pickup pattern: sym­metrical about axis and uniform at all frequen­cies-providing highly effective suppression of

feedback

rn

Uniform shaped response, particularly suitable

for the professional entertainer

rn

A

built-in On-Off switch with provisions for lock-

ing switch in its On position

rn

Versatility-for use in the hand or on a stand­for use indoors or outdoors

rn

Dependability under all operating conditions

The Model 580 Microphones are supplied with an
adjustable swivel adapter which permits the micro­phone to be tilted through 90" from vertical to hori­zontal. This swivel also allows for "quick-disengage"
for use as a hand microphone.

Model

580SA is high impedance for connection to

high-impedance microphone inputs.

Model

580SB is low impedance for connection to

microphone inputs rated at 19 to 300 ohms. The

low­impedance microphone is recommended where long
cable lengths are required or under conditions of se­vere hum disturbance. The permissible cable length is
practically unlimited since neither response nor level
is appreciably affected by long cables. Shure Model
A95 Series Line Matching Transformers are available
for use in those cases where a low-impedance micro­phone line is desirable but the associated amplifier
has a high-impedance input. These

transiormers pro­vide a proper impedance match between a 19 to 300
ohm microphone line and a high-impedance input and
are available with various input and output connectors.

SPECIFICATIONS

TY pe

Dynamic

Frequency Response

50 to 13,000 Hz (see Figure 1)

+20

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-20
20

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100

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20.003

FREWENCY

IN

HERTZ

TYPICAL

FREQUENCY

RESPONSE

FIGURE

1

Polar Pattern

Cardioid (unidirectional)-uniform with frequency,
symmetrical about axis (see Figure

2)

FIGURE

2

Impedance

Model

580SA:

Microphone impedance is "High" for

connection to high-impedance microphone inputs.
Model

580SB:

Microphone rating impedance is 150

ohms (160 ohms actual) for connection to micro-

phone inputs rated at 19 to 300 ohms.

Output Level (at 1,000

Hz)

580SA 580SB

Open Circuit Voltage*

. .

.

. .

-57.5 dB

-80.0 dB

(1.33

mV) (.I00 mV)

Power Level

* *

.

. .

. .

.

. . . .

.

.

-58.0 dB

*O dB = 1 volt per microbar

**O

dB = 1 milliwatt per 10 microbars

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

Cable

Model

580SA: 4.6m (15 ft), nondetachable, single-

conductor shielded
Model

580SB: 4.6m (15 ft), nondetachable, two-

conductor shielded

Copyright

1979,

Shure

Brothers Inc

27A325

(SK)

U.S.

Patents

3,132,713

and

3,240,883

Printed

in

U.S.A.

Swivel Adapter

Positive action, adjustable through 90" from vertical
to horizontal, permits easy removal for handheld use,

suitable for mounting on stand with

%"-27 thread

Case

Chrome-plated die casting and ARMO-DUR@ with

stainless steel grille

Dimensions

See Figure 3

169

rnrn

7

(6-

21/32 IN1

1

OVERALL

DIMENSIONS

FIGURE

3

Net Weight

624 grams (1 Ib, 6 oz)

Packaged Weight

907 grams

(2

Ib)

PHASING

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 micro-

phone at the equipment end of the cable, interchange
the BLACK and WHITE cable leads where they are
connected to the sound system. To change the phase
of a microphone, the microphone cartridge leads must
be interchanged (see Figure 4). This should be per­formed by your dealer, the Shure Factory Service De­partment, or other qualified service personnel.

CARTRIDGE

-L~~~~~

TERMINAL

FC

ASE

POSITIVE PRESSURE PRODUCES POSITIVE VOLTAGE

ON CABLE SHIELD

MODEL 580SA INTERNAL CONNECTIONS

jSWITCH SHOWN IN

"0FFWPOSITION

SHIELD

,-----

WHITE

!

':

-1

I

.!I

BLACK

I

/

LY

CARTRIDGE

+ASE

POSITIVE PRESSURE PRODUCES POSITIVE VOLTAGE

ON

BLACK CABLE LEAD

MODEL 580SB INTERNAL CONNECTIONS

FIGURE

4

FURNISHED ACCESSORY

............................

Swivel Adapter .A25B

OPTIONAL ACCESSORIES

Windscreen

...............................

A6lWS

Line Matching Transformer

.............

.A95 Series

Desk Stand

.........

.S33B, S37A, S38B, S39A, S40A

Quick Disconnect Adapter

.....................

A45

Dual Mount

...............................

.A26M

REPLACEMENT PARTS

580SA 580SB

.....................

Cartridge R58 R58

.....

Screen and Grille Assembly RK51G RK51G

.................

On-Off Switch RK48S RK48S

ARCHITECTS' SPECIFICATIONS

The microphone shall be a moving coil (dynamic)

type with a frequency response of 50 to 13,000

Hz.

The
unit shall have a cardioid polar characteristic. The
cancellation at the sides shall be approximately 6 dB,
and the cancellation at the rear shall be 15 to 20 dB.

Model

580SA shall be high impedance for connec-

tion to high-impedance microphone inputs.

Model

580SB shall be low impedance with a rated

impedance of 150 ohms for connection to microphone

inputs rated at 19 to 300 ohms.

The microphone output shall be:

...................

Model 580SA -57.5 dB

(0 dB = 1 volt per microbar)

...................

Model 580SB -58.0 dB

(0 dB = 1 milliwatt per 10 microbars)

The microphone shall be equipped with a built-in

On-Off switch and a

nondetachable 4.6m (15 ft) cable.

The cable for Model

580SA shall be single-conductor

shielded; the cable for Model

580SB shall be two-

conductor shielded.

The microphone shall be provided with a swivel
adapter, adjustable through 90" from vertical to hori­zontal, and suitable for mounting on a stand having
a

%"-27 thread.

The overall dimensions of the microphone shall be

169 mm (6-21132 in.) in length and 46 mm (1-13116 in.)
in diameter.

The microphone shall be the Shure Model

580SA,

580SB, or equivalent.

GUARANTEE

This Shure product is guaranteed in normal use to
be free from electrical and mechanical defects for a

period of one year from date of purchase. Please

retain proof of purchase date. This guarantee includes
all parts and labor. This guarantee is in lieu of any
and all other guarantees or warranties, express or
implied, and there shall be no recovery for any con­sequential or incidental damages.

SHIPPING INSTRUCTIONS

Carefully repack the unit and return it prepaid to:

Shure Brothers Incorporated
Attention: Service Department
1501 West Shure Drive

Arlington Heights, Illinois 60004

If outside the United States, return the unit to your

dealer or Authorized Shure Service Center for repair.

The unit will be returned to you prepaid.