Shure 525 User Guide

222

HARTREY AVE . EVANSTON,

MICROPHONES AND ELECTRONIC COMPONENTS

EVANSTDN PHONE DA 89000 . CHICAGO PHONE SH 3.1600

ILL

.

CABLE

OMNI-DIRECTIONAL DYNAMIC

Specifications

Response Frequency Characteristic:

c.p.s. uniformity insured to plus or minus 2%

15,000

It

is

especially designed to meet the exacting require-

N,

ments of

tions.

radio broadcasting and all studio applica-

From 40 to

SHUREMICRO

DATA

Multi-Impedance

db.

MODEL

"525"

STUDIO MICROPHONE

Polar Pattern:

1000

C.P.S. Response

Model 525

Open Circuit Voltage Level.

Power Level into 50 ohm..
RETMA Microphone Rating

GM

(Sensitivity)

Model 525

Open Circuit Voltage Level.

Power Level into 150 ohms.
RETMA Microphone Rating

GM

(Sensitivity)

Model 525

Open Circuit Voltage Level.

Power Level into 250 ohms.
RETMA Microphone Rating

GM

(Sensitivity)

0

(*)

(**)

(***)

db

0

db

RETMA Standard SE-105, August 1949.

Rated Impedances:

multi-impedance switch furnishing a choice of three im­pedances-"L" (50 ohms);
ohms).

Omni-directional.

"L"

Position

.........

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

"M"

Position

.........

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

"H"

Position

.........

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

=

I

Volt Per Microbar.

=

I

Milliwatt with 10 Microbar.

Model 525 is equipped with a

"Mu

........

.-

.-

.-I

........

.-

.-

.-

.........

.- 61

-1

(150 ohms);

-

88

61

53

83

6

I54

8

52

"H"

1

1

db*

db**

db***

db*

db**

db***

db*

db**

db***

(250

Cable:

cable with Cannon

Swivel Adapter:

Model A25 swivel adapter which is furnished with the
microphone.
lifetime swivel which permits the microphone to be tilted
thru

Dimensions:

Finish:

Copyright

27A82

20 foot (6.1 m) Broadcast 2-conductor shielded

XL-3-1 I connector attached.

Model 525 may be used with the

It

has a self-adjusting "positive action"

90° from vertical to horizontal.

See Fig.

Non-reflecting "Baked Bronze" and Beige case.

1954.

Shure Brothers.

(6-62)

C.

Inc.

Shure Patents

Printed

Pmdinr.

in

U.S.h

Stand Thread:

5/8"-27 thread. Adapters for

thread are available UPon

Weight:

3%

Ib.

(14749)

The Model A25 swivel adapter has a

N-t

weight

1/2

Ib. (226.8g), Packaged weight

y2"

pipe thread or 58"-24

request

at

extra

I

arge.

stand. Stand coupler

for

1/211

pipe

Brothers, Inc.) To avoid
lines are used, care should be taken that the cable does
not parallel

A.C.

adapters are available at no charge

thread

or 5/8"-24 thread. (Write Shure

A.C.

hum induction when long

power lines for long distances.

Code Word:

General:

slender moving-coil dynamic microphone, custom-built to

provide high fidelity re
and features an omni­phone has complete
and outdoor use and may
manner.

Mounted in swivel adapter on a conventional floor

I.

or desk stand.

Quick disengage feature permits the microphone

2.
to be removed from the swivel adapter for use
as a hand, audience participation, interviewer
microphone, etc.

Equipped with adjustable lavalier cord and belt

3.

clip, the microphone may be used as a wearable
unit

Readily accessible impedance switch permits quick

4.

change.

The extended, smooth, frequency res onse and the at­tending faithful reproduction are large y due to a newly
designed diaphragm attached to a sensitive coil suspend­ed in a magnetic structure. The use of high efficiency
magnetic materials and specially designed magnetic
circuits has made
phone and

The microphone is ruggedly built to withstand hard
usage and
variations. The 20-foot (6.1 m) broadcast quality, shielded:
two-conductor cable
phone plug

The "525" meets the most exacting requirements for
maximum quality and minimum size. The Model A25 ad­justable swivel
and permits the microphone to be tilted through
from vertical to horizontal, making
microphone at the source of sound.

An adjustable lavalier cord and a belt clip
are supplied which facilitate the use of the microphone

by

public speakers and lecturers; teachers and instructors;
demonstrators; and all similar applications where freedom
of both hands
on the microphone, can be readily fastened around the
wearer's neck, and quickly removed.

RUDED.

The Model "525" Studio Microphone is

roduction of voice and music

d'

irectional pattern. The micro-

versat~l~ and reliability for indoor

e used in the following

"*s

by

lecturers, broadcast announcers, etc.

f

it

possible to develop this small micro-

still

achieve maximum operating efficiency.

is

unaffected

adapter is supplied with the microphone

is

necessary. The lavalier cord clips easily

by

temperature and humidit

is

supplied with a Cannon micro-

it

simple to aim the

a~sembly

a

90'

TWO

CONDUCTOR

SHIELDED

CABLE

SINGLE CONDUCTOR SHIELDED
CA8LE.CABLE LENGTH NOT IN
EXCESS OF

MATCHES EITHER 50 OHMS
250 OHMS TO HlGH IMPEDANCE

7.'

OR

FIG.

A

AMPLIFIER

WITH

HIGH

Applications:

meets all requirements of broadcast, television, record­ing and all types of studio work because the frequency
response is controlled within close tolerances.
ideal for highest-quality public address, both indoors and
outdoors. The microphone may be used for either a
single performer, a dialogue, a group, an orchestra
practically all individual and group applications.

Installation:

swivel adapter, has a standard
mounted on any conventional desk, banquet or floor

The Model "525" Studio Microphone

It

is,

also,

-

The Model "525", when used with the

5/8"-27 thread and may be

FIG.

B