Shure PE75H, PE75L User Guide

PROFESSIONAL ENTERTAINER

MODEL PE75 UNIDIRECTIONAL

PE75H-LC:High impedance
PE75L-LC: Low impedance

PE75H-C: High impedance
PE75L-CN:Low impedance

An acoustic design that approaches the theoretical ideal
coupled with a really effective pop and wind filter in the
type grille- that's the PE75. These microphones have the ap­pearance and characteristics that make them the first choice
of professional entertainers. The PE75 Microphones incor­porate every feature.

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Uniform unidirectional (cardioid) pickup pattern minimizes
feedback in live performance
Ball-type pop-filter grille eliminates "p-popping" and
reduces breath noise

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Extremely effective internal shock mount reduces handling
noise

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Silent, magnetic-reed On-Off switch with lockplate
Nonreflective dark gray finish for professional appearance
onstage

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Extremely rugged and reliable

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Backed by the Shure guarantee

SPECIFICATIONS
Type

Dynamic

Frequency Response

50 to 15,000 Hz (see Figure 1)

*

.,o

-

Supplied without

-

Supplied with C20A Cable

-

Supplied with C25B Cable

cable

ball-

1

5

o

(pa

.nca*Cv

I"

TYPICAL FREQUENCY RESPONSE

Polar Pattern

Cardioid (unidirectional) See Figure 2

......

~~!JHZ

---

OOOWZ --4000

-1000"z

TYPICAL POLAR PATTERNS

-I

FIGURE

FIGURE

1

-

POOO

nz

HZ

.."'

8000

11,.

2

Impedance

PE75H-LC, PE75H-C: High (greater than 30 kilohms)
PE75L-LC, PE75L-CN: Low (150 ohms rating)

Output Level

Open Circuit Voltage*

'0 dB = 1Vlcbar (1.5 mV) (0.13 mV)

Power Level**

"0 dB = 1 mWllO

(at 1,000 Hz) IMPEDANCE

..........

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

High Low

-56.5 dB -77.5 dB

-57.5 dB

char

Phasing

PE75H-LC, PE75H-C: Positive pressure on diaphragm pro­duces positive voltage on pin 1 of connectors and on sleeve
of phone plug

PE75L-LC, PE75L-CN: Positive pressure on diaphragm pro­duces positive voltage on pin 2 of connectors

ON-OFF CARTRIDGE
SWITCH

rw

CODED

ON - OFF CARTRIDGE

GREEN GREEN

YELLOW YELLOW

CODED
TERMINAL

BLUE

3-PIN PROFESSIONAL CABLE
AUDIO CONNECTORS PLUG

RiiiiiiT2j

PE75H

3-PIN PROFESSIONAL AUDIO CONNECTORS

@;

PE75L

FIGURE

3

I-C ONLY 1 PHONE

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I

B

,

SHIELD

. - .

- - - -

CABLEeCN ONLY1

,,T..

--

---

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!::a

:~>JLELQ

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-

TIP

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Switch

Built-in magnetic reed On-Off switch with lockplate. To lock
switch On, remove screw and turn lockplate
ble and tighten screw

180°. Reassem-

Cable

PE75H-LC, PE75L-LC: supplied without cable
PE75H-C: 6.lm (20 ft) 1-conductor shielded with 3-socket
professional audio connector and
PE75L-CN: 7.6rn (25 ft) 2-conductor shielded with 3-socket
and 3-pin professional audio connectors

%-inch phone plug

Case

Dark gray with dark gray screen and grille

Cartridge Shock Mount

Internal rubber vibration isolator

Net Weight

298 grams (10% oz)

(less cable)

Swivel Adapter

Positive action, adjustable from vertical to horizontal, for
mounting on

5/a"-27 thread

FURNISHED ACCESSORIES

Swivel Adapter
Padded Gig Bag

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

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

26A07

A25B

OPTIONAL ACCESSORIES

Windscreen
Floor Stand (Weighted base)
Floor Stand (Tripod base)
Baby Boom

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

A58WS Series

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

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

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

MS-1OC

BB-44

REPLACEMENT PARTS

Cartridge
Screen and Grille
Switch
Cable (PE75H-C)
Cable (PE75L-CN)

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

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

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

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

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

R120

RK224G

90D1725

C20A
C25B

S15

222 HARTREY AVENUE, EVANSTON, ILLINOIS 60204 U.S.A.
Copyright

27A2133

1985,

(EE)

Shure

Brothers

Inc.

TELEPHONE: [phone] CABLE: SHUREMICRO

Printed in

U.S.A.

SHURE-QUALITY IS OUR FIRST CONSIDERATION

Congratulations on the purchase of your new Shure microphone. it
will serve you faithfully even in the most difficult circumstances.
Because more than 50 years of experience with microphones has taught
us one thing: they are not always used under ideal conditions. Far
from it! So Shure develops, designs, builds, and tests them for the worst
conditions we can imagine.

We know they'll be flung into equipment boxes after performances.
We know they'll be called upon to function at humidity levels near 100%.
We know they'll be left in the direct rays of the midday sun for hours,
waiting for outdoor concerts to begin. Professional vocalists depend
upon their microphones much as musicians depend upon their in­struments, but many don't hesitate to throw their Shure microphones
across the stage and down on the floor-violently -as part of their per­formance. They never give it a second thought. They know that Shure
microphones shrug off abuse that would make others fail.

Shure reliability begins during the design stage. Shure has a staff of
specialists whose sole function is to uncover any weaknesses before
Shure microphones are put into quantity production. During the testing
process, microphones are:

Heated at temperatures up to
Frozen down to

-46OC (-50°F) for half-hour periods

85OC (185OF) often for entire days

during

the heat

test
Shaken from side to side, back and forth, and up and down,

simultaneously and violently

Subjected to steamy humidities-up to 100% at room temperature
and 93% at

38OC (lOO°F)
Subjected to ultraviolet rays, salt sprays, alcohol, sand, and water
And for good measure, dropped repeatedly 2 meters (6 ft) onto hard-

wood floors.

That is our

standard

test procedure. All during production, units chosen
at random are put through these same tests. Failure of any one
microphone brings production to a halt until the original design re­quirements are again met.

That's why at Shure we say, quality is our first consideration. The pur­chasers of the millions of microphones bearing the name Shure during
past years, and those now buying

their.first Shure microphone can rely
on us to continue to follow the philosophy and policies that keep Shure
microphones working dependably

-

year after year after year.

Quality is our first consideration!

BASIC MICROPHONE TECHNIQUE

Good microphone technique will add to your effectiveness as a per­former. Keep the following points in mind when using your Shure Profes­sional Entertainer Microphone.

1. Maintain the proper distance from the microphone. When you want a

warm, full sound, get close to the microphone and lower your voice.
For a wide open, driving sound, raise your voice and back away from
the microphone to avoid overdriving the amplifier into distortion.

2. Don't change your distance from the microphone needlessly as this

will affect the level of sound coming from the loudspeakers.

3.

Your Shure PE Microphone is your link to the audience. Consider the
microphone an instrument and develop your technique through
practice.

FEEDBACK AND UNIDIRECTIONAL MICROPHONES

A performer's worst enemy in using a microphone is "feedback". This
is a harsh hum, howl, or squeal that occurs when the microphone picks
up sound from the loudspeakers, reamplifies and rebroadcasts it over
and over again. This vicious circle results in feedback.

A unidirectional microphone aids in preventing feedback because it
rejects sound that originates from the sides and rear. Sound pickup
from the sides is reduced by about one half, and pickup from the rear is
reduced by about nine tenths. You can demonstrate this reduction in
pickup by repeating "Test one, two" or some other convenient phrase as
you rotate the microphone from front to back.

Using unidirectional microphones close to the performer or instru­ment ensures that the direct sound will be much louder than the
feedback-producing amplified sound. Because the amplifier gain can be

turned up less to achieve the desired overall loudness, the amplified
sound will likely remain below the volume that triggers feedback.

Other helps in preventing feedback are: keep the loudspeaker as far

to the sides as possible; be sure that the microphones point toward the

performers and away from the loudspeakers; and make certain that any

stage monitor speakers are positioned in front of the performers and
face the insensitve rear of the microphone.

UNIDIRECTIONAL MICROPHONES, OMNIDIRECTIONAL
MICROPHONES, AND PROXIMITY EFFECT

Because of their usefulness in reducing the likelihood of feedback,
unidirectional microphones are best in sound reinforcement and public
address; while omnidirectional microphones are best in recording
where feedback problems do not arise, or for close-miking instruments
and amplifiers.

When unidirectional microphones are used close to a vocalist or
musical instrument, there is an increase in bass (low-frequency) output
called proximity effect. At a distance of about 6mm

(%

in.) a typical in-

crease is shown on the curve below.

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20

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Proximity effect can be used to improve your sound.

1. With vocalists, it increases warmth, giving a fuller quality to the

voice.

2. With instruments, it provides a flat or boosted bass output without
tone controls, simply by changing the distance between source and

microphone; and close

miking provides natural isolation by minimiz-

ing bass pickup of other instruments.

Most Shure unidirectional microphones are designed with a bass
response that provides control at low frequencies yet still allows prox­imity effect to be used advantageously when desired. To employ prox­imity effect, you need to hear the amplified result. Just as you practice
your instrument, you will want to practice your microphone technique to
get the precise sound you want. (A good way to hear the actual result of
proximity effect is to'use monitor speakers or headphones if they are
available.)

Omnidirectional microphones do not exhibit proximity effect when

closeup. Because the response does not change with angle or

used
distance from the performer, an omnidirectional microphone is valuable
when the sound must stay the same for several performers positioned
around the microphone, or for a performer who moves from place to
place during a play or interview. But be aware of feedback problems that
may occur if omnidirectional microphones are used when sound
amplification is present.

CHOOSING A MICROPHONE EXTENSION CABLE

Low-impedance microphones can be used with practically unlimited
lengths of cable with no added noise or high-frequency loss. Any Shure

2-conductor balanced cables

(e.g., C25B, C25E, C25F, C50F, ClOOF, or
C20H) can be used as extension cables for Shure low-impedance
microphones. These cables can also be used in anv reauired lenaths or
comb/nations between a low-impedance microphone a& the ~25G Low­to-High-Impedance Cable-Transformer or between the microphone and

A~~UF

an

'Matching Transformer.

High-impedance microphone cables are usually limited to

6.lm (20 ft)
to avoid high-frequency loss or possible noise pickup. If longer cables
are needed with high-impedance microphones, use such Shure cables
as the C258, C25E, C25F or C20H to reach the required distance. Then
add the
the equipment to compensate for the high-frequency

C20A to plug into the equipment. Adjust the treble control on

rolloff caused by

the extra length of cable.

Look for the Shure

Audio Connection"

for quality microphone cables.

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, have it insured, and return it prepaid to:

Shure Brothers Incorporated
Attention: Service Department
222 Hartrey Avenue

Evanston, Illinois 60204

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.