Shure ES50 User Guide

222 HARTCEY AVE., EVANSTON.

IL.

60204

U.S.A.

DATA

AREA CODE 312/328-9000 . CABLE: SHUREMICRO

UNIDIRECTIONAL DYNAMIC MICROPHONE

FOR ACOUSTICALLY EQUALIZED SOUND

SHEET

MODEL ES50

General:

The basic role of the microphone in an equalized sound system is to pick up the program source without disturbing the uniformly distributed

soundadjustment which has been performed on the system. The feedback threshold, measured in half-octave bands, gives an overall picture of the performance

potential of the microphone used in an equalized sound system. This measurement includes the effects of frequency response and polar response.

The design of the Model ES50 microphone has been specifically optimized to operate in equalized sound systems and to maintain a uniform feedback threshold characteristic.

The feedback threshold curve of the Model ES50

is shown in Fig. A.

NOTE that the feedback threshold in the useful operating range of

110 Hz. to 5000 Hz. is maintained at uniform level. This factor is imperative for optimum results from an equalized system at minimal costs. In the critical range above 5000 Hz. the response of the ES50 has been smoothly tailored to increase the feedback rejection in this

region.

A further requirement of a microphone for use in

an equalized system is its uniform phasing-the Model

ES50 is 100% phase checked.

The microphone features:

Response specially tailored for use in equalized sound systems

True cardioid pickup pattern: symmetrical about

axis and uniform at all frequencies Cartridge shock mounted for quiet operation Versatility-for use in the hand or on a stand

An adjustable swivel adapter that enables you to aim the microphone where you want it. Swivel

also allows for quick removal for use as a hand

microphone

The Model ES50 is low impedance and is designed for connection to a 25 to 200 ohm line or input. This is recommended where long cable lengths are required or where there are conditions of severe hum disturbance. To use Model ES50 with a high impedance ampli-

fier, use a Shure Model

A95A Line Matching Trans-

former.

Swivel Adapter

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

A25B

OPTIONAL ACCESSORIES

FURNISHED ACCESSORIES

Line Matching Transformer Vi bration-Isolation Stand Desk Stand

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

Quick Disconnect Isolation Unit

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

A95A

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

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

S39A S33B

A47

ARCHITECT'S SPECIFICATIONS

The microphone shall be Shure Model ES50 or equivalent. A moving coil (dynamic) microphone with a frequency and polar response especially tailored for equalized sound systems, this unit shall have a cardioid

polar characteristic. The feedback threshold measured in half-octave bands, shall be uniform from 110-5000 Hz. Above 5000 Hz,

its response shall be peak free and smoothly rolled off. The cancellation at the sides shall be approximately 6 db and the cancellation at the rear shall be 15 to 20 db. The microphone shall have an impedance of 150 ohms for connecting into micro-

phone inputs rated at 25 to 200 ohms. The microphone output shall be:

150 ohms impedance

60.0 db

(0 db = 1 milliwatt with 10 microbars)

The microphone rating Gm (sensitivity) at

shall be

153.0 db

1000 Hz.

EIA Standard SE-105, August 1949

The microphone shall be provided with an adjustable

swivel adapter. The microphone swivel adapter shall

mount on a stand having a

518"-27 thread. The overall dimensions shall be 6-5/16 inches (160.3 mm) in length and 1-15/32 inches (37.3 mm) in diameter.

(LD)

1969,

Shure Brothers Inc.

(OVER)

U.S.

Patents, 3,132,713 and 3,240,833

Printed

U.S.A.

SPECIFICATIONS

Type:

Dynamic

Polar Pattern:

Cardioid (Unidirectional). Uniform with frequency, symmetrical about axis.

Feedback Threshold:

Uniform from

to 5000

Hz.

Above 5000

110

Hz.

response shall be peak free and smoothly rolled off.

Microphone Rating Impedance:

150 ohms for connections into microphone inputs

rated at 25 to 200 ohms.

Output Level:

1000

Hz.

response

Model ES50 (150 ohms impedance)

Open Circuit Voltage. Power Level.

. . . . .

. . . . . .

-81.5 d b*(.085 mv)

.--60.0 db*

EIA Microphone Rating

. .

. . . . .

Gm (Sensitivity)

db = 1 volt per microbar

**0 db

milliwatt with 10 microbars

.-153.0 dbn**

'**O db = EIA Standard SE-105, August 1949

Hz.,

its

Guarantee: This Shure product is guaranteed in normal use to be free from electrical and mechanical defects for a period of one year from the date of purchase. Please retain proof of purchase date. This guarantee

includes all parts and labor.

Shipping Instructions: Carefully repack the unit and

return it prepaid to the factory. 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.

HALF

OCTAVE

FEEDBACK

THRESHOLD

FIGURE A

OVERALL

DIMENSIONS

FIGURE

Shock Mount:

Cartridge shock mounted for quiet operation.

Case:

Die-cast and "Armo-Dur".

Case Finish:

Non-reflecting gray paint.

Connector:

Professional three-pin male audio connector designed to mate with Cannon XL series, Switchcraft A3

(Q.G.)

series, or equivalent connector.

Dimensions:

See Figure

Weight:

10% ounces (297 grams)

CARTRIDGE

POSITIVE

PRESSURE

PROWOES

INTERNAL

POSITIVE

VOLTAGE

CONNECTIONS

FIGURE C

POLAR

PATTERN

FIGURE

CABLE-PCUO ASSEMBLY

(NOT SUPPLIED)