Shure Unidyne A PE58 Bedienungsanleitung

HOW TO CONTROL FEEDBACK

performer's number one enemy in using a microphone is

"feedback." This is a harsh hum, howl or squeal which oc-

curs when the microphone picks up sound from the

loudspeakers, re-amplifies and rebroadcasts it over and

over again.

The key factor in the prevention of feedback is the posi-

tion of the loudspeakers in relation to the microphone.

Feedback occurs if the microphone picks up sound coming

from the loudspeakers. Keep the loudspeakers as far to the

sides as possible-so they do not point toward the micro-

phone. Always keep the microphone pointed toward the

performer and away from the loudspeakers. When stage

monitor loudspeakers are used, make sure they are posi-

tioned in front of the performers and face the rear of the

microphone.

If you are in a room with hard walls, floor, and ceiling,

the sound from the loudspeakers may bounce back into the

microphone and create feedback. Solve this problem by

turning down the amplifier volume control and working

closer to the microphone.

(Important Note: If you cannot solve the feedback

problem with your

UNIDYNE~

A microphone, a Shure

Feedback Controller is suggested.)

BASIC POINTS FOR PROFESSIONAL

MICROPHONE TECHNIQUE

Proper microphone technique will add to the overall ef-

fectiveness with which you project yourself to your

audience. Keep the following points in mind when using

the microphone:

Maintain the proper distance from the microphone.

When you wish to achieve an intimate tonal quality,

get closer to the microphone and lower your voice. For

wide-open "driving" effects, raise your voice and back

away from the microphone so that you do not over-

drive your amplifier to distortion.

Don't change your distance from the microphone

needlessly, as this will affect the level of sound coming

from the loudspeakers.

Consider the microphone

an instrument and prac-

tice your technique to enhance your performance.

YOUR SHURE MICROPHONE IS BUILT TO LAST!

Your Shure Microphone is ruggedly built and should give

you years of uninterrupted service; however, remember

that it is a sensitive instrunlent. Avoid dropping the micro-

phone, or subjecting it to unnecessarily rough treatment.

Normal usage, of course. will not impair performance of

the unit. Use the protective carrying case to prevent dam-

age not only when traveling, but also when storing the

n~icrophone.

MICROPHONE CHECK-LIST

Check microphone impedance-is it correct for the

amplifier input being used?

Check nlicrophone cable connectors to nlicrophone,

mixer and amplifier-are they tightly plugged in?

Check microphone, amplifier and/or mixer.

Are they turned

on?

b. Are volume controls turned up?

IF THE MICROPHONE DOES NOT WORK

Check the above list. If the nlicrophone then does not

appear to be operating, check it on a spare cable.

the

microphone still does not appear to be operating, have the

microphone and cable checked by your Shure Professional

Entertainer Products Dealer, or write Service Department.

Shure Brothers Inc.

PHASING

To test two microphones and/or their cables 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, they are out of phase. All cables and micro-

phones should be tested in this manner to insure that they

are in phase with each other.

To change the phase of a microphone, the microphone

cartridge leads must be interchanged (see Figure

2).

This

should be performed by your dealer, the Shure Factory

Service Department, or other qualified service personnel.

IMPEDANCE

Your Model PE58 is a high-impedance microphone. If

cable lengths over

7.6

meters (25 feet) are required, or

if the microphone is to be connected to a low-impedance

input, it will be necessary to transform the microphone

line to low impedance. Shure Model A95 Series Line

Matching Transformers are available for use in those

cases. These transformers provide a proper impedance

match between a high-impedance microphone line and a

low-impedance input and are supplied with various input

and output connectors.

USING MORE THAN ONE MICROPHONE

is often desirable for a group to use a separate micro-

phone for each individual performer. In this case, the

following points should be remembered:

It is best if the microphones are individually controlled

for volume through a separate Shure microphone

mixer.

this is not possible, it is desirable that each

performer use the sarne type and rnodel

microphone

so that the group as a whole wjil1

"halanced."

Check the placement of the microphones with relation

to loudspeakers (as previously mentioned) so that

feedback is minimized.

As additional microphones are added the possibility of

feedback increases. Turn off, or down, unused micro-

phones to help solve this problem.

SHURE FEEDBACK CONTROLLER

Lets you "tune" your sound system to the acoustics of the

room. The result is more overall sound power

without

feedback. Eight linear-motion filter controls are infinitely

variable from

dB cut. Below

and Above

kHz roll-off switches attenuate low and high frequencies.

Can be installed between mixer or console and amplifier

for total system control, or following each microphone as

a single-channel preamplifier with feedback control.

THE VITAL LINK

BETWEEN

YOU

AND

THE AUDIENCE

SHURE PROFESSIONAL ENTERTAINER

MICROPHONES

MODEL PE58 SPECIFICATIONS

Type: Dynamic, Cardioid (unidirectional)

Frequency

Response: 50 to 13.000 Hz (see Figure

*2"

=.so

-io

-a

I*-*,

*nr

FIGURE

Impedance: Microphone impedance is "High" for connection to high-

impedance microphone inputs.

Output Level

(at 1,000 Hz): Open Circuit Voltage

... ..

-57.5

dB (1.33 mV)

0 dB

1 volt per microbar

Phasing: Pos~tivepressure on diaphtagm produces positive voltage on

SLEEVE of phone plug (see Figure

and page

4).

FIGURE

Switch:

Connector:

Built-in On-Off switch with lockplate installed in unlocked

position. To lock switch in On position, move to On position.

loosen screw on lockplate, and turn lockplate

180°.

Re-

tighten screw.

Equipped with Amphenol type MClM connector designed

to mate with furnished cable

GUARANTEE

This Shure product is guaranteed In normal use to be free from

electrical

and

mechanical

defects for a per~odof one year from date of purchase. Please re-

rain proof of purchase date. This guarantee includes all parts and labor. Thls

guarantee is in lieu of any and all other guarantees or

warranties,

express or

~mpl~ed,and there shall be no recovery for any

consequential

or incidental

damages.

SHlPPiNG 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

Servlce Center lor repair. The unit will be returned to you prepaid.

MODEL PE58 SPECIFICATIONS (Continued)

Shock Mount: Internal rubber vibration-isolatot

Case: Chrome-plated d~ecasting and

ARMO-DUR&

w~thstamless

steel screen

SwivelAdapter: Adjustable through 90° from vertical to horizontal, to fit

5/n1'-27 thread

Cable: 6.lm (20 ft) single-conductor shielded cable, equipped with

Amphenol type MClF connector on microphone end and

'/4

In. phone plug on equipment end

Net Weight: 369 grams (13 oz) less cable

PackagedWeight: 1.15 kilograms (2 Ib, 8% oz)

FURNISHED ACCESSORIES

Swivel Adapter: A258

Carrying Case: 90F1404

OPTIONAL ACCESSORIES

Desk Stand: S336, S37A, S388, S39A, S40A

Disconnect

Adapter: A45

Line Matching

Transformer: A95 Series

Windscreen: A61WS

REPLACEMENT PARTS

Cartridge: R58

Cable: C5-1

Screen and

Grille Assembly: RK51G

On-Of! Switch: RK48S

Cable Connector: RK114P

AREA CODE 312/866-2200 CABLE SHUREMICRO

-44

SHURE BROTHERS

INC.

222

HARTREY AVENUE

EVANSTON, ILLINOIS

60204

U.S.A.

Shure Brothers Inc. U.S. Patents 3,132,713

27A344

(RF)

and 3,240,883

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