AKG D 7 Manual de usuario

D7 S

D7 LTD

VOCAL

BEDIENUNGSANLEITUNG . . . . . . . . .S. 2

Bitte vor Inbetriebnahme des Gerätes lesen!

USER INSTRUCTIONS . . . . . . . . . . . . . .p. 12

Please read the manual before using the equipment!

MODE D’EMPLOI . . . . . . . . . . . . . . . . . . . .p. 22

Veuillez lire cette notice avant d’utiliser le système!

ISTRUZIONI PER L’USO . . . . . . . . . . .p. 32

Prima di utilizzare l’apparecchio, leggere il manuale!

MODO DE EMPLEO . . . . . . . . . . . . . . . . .p. 42

¡Sirvase leer el manual antes de utilizar el equipo!

INSTRUÇÕES DE USO . . . . . . . . . . . . . .p. 52

Favor leia este manual antes de usar o equipamento!

Page

1 Precaution / Description........................................................................13

1.1 Precaution ..................................................................................13

1.2 Unpacking ..................................................................................13

1.3 Optional Accesories .....................................................................13

1.4 Features.....................................................................................13

1.5 D 7.............................................................................................14

1.6 D / S...........................................................................................14

1.7 D 7 LTD ......................................................................................14

2 Interfacing ............................................................................................15

3 Using Your Microphone .........................................................................16

3.1 Introduction ................................................................................16

3.2 Working Distance and Proximity Efffect..........................................16

3.3 Angle of Incidence.......................................................................16

3.4 Feedback....................................................................................17

3.5 Backing Vocals............................................................................18

4 Cleaning................................................................................................18

4.1 D 7, D 7 S ...................................................................................18

4.2 D 7 LTD ......................................................................................18

4.3 Cleaning the Internal Windscreen..................................................18

4.4 Replacing the Internal Windscreen ................................................19

5 Troubleshooting ....................................................................................20

6 Specifications .......................................................................................21

Table of Contents

12 D 7/D 7 S/D 7 LTD

1 Precaution/Description

1.1 Precaution

1.2 Unpacking

1.3 Optional

Accessories

1.4 Features

D 7/D 7 S/D 7 LTD 13



• Please make sure that the piece of equipment your

microphone will be connected to fulfills the safety

regulations in force in your country and is fitted with

a ground lead.

• Check that the packaging contains all of the components

listed above. Should anything be missing, please contact

your AKG dealer.

• For optional accessories, refer to the current AKG catalog or

folder, or visit www.akg.com. Your dealer will be glad to

help.

• Frequency response optimized for vocal use.

• Integrated wind and pop screen for effective suppression of

pop and breath noise.

• Frequency independent supercardioid polar pattern for high

gain before feedback.

• New Varimotion diaphragm for brilliant sound.

• Mechanical/pneumatic transducer shock mount reduces

handling and cable noise.

• Highpass filter and humbucking coil minimize low-fre-

quency noise

• Extremely resilient, spring-steel wire-mesh cap for extra

impact resistance.

1 D 7 / D 7 S /

D 7 LTD 1 SA 61

1 Extra

internal

windscreen

1 Car-

rying

case

1 Micro-

fiber cloth

(D 7 LTD

only)

1.5 D 7

1.6 D 7 S

1.7 C 7 LTD

The AKG D7is a supercardioid dynamic microphone. It has

been designed specifically as a vocal microphone for rough on-

stage use. The wide frequency response of the D 7 slightly fa-

vors the midfrequency and treble regions to ensures

good intelligibility of speech. The term "supercardioid polar re-

sponse" means that the D 7 is most sensitive to sound arriving

from in front of it, less sensitive to sound arriving from the sides

and rear. This pickup pattern is virtually the same for all fre-

quencies or, in other words, from the lowest to the highest notes

("frequency independent").

A mechanical/pneumatic shock mount on the transducer ele-

ment minimizes handling and cable noise. An integrated wind-

screen reduces pop, wind, and breath noise to a minimum. A

built-in humbucking coil and 80-Hz highpass filter will effec-

tively suppress any other kind of unwanted low-frequency

noise. The filter is permanently active. Therefore, the micro-

phone has no separate on/off switch for the highpass filter.

A rugged front grill made of spring-steel wire mesh that is ex-

tremely resistant to deformation and a sturdy zinc alloy die-cast

body effectively protect the microphone and transducer ele-

ment from damage on stage and on the road.

The D 7 S has the same mechanical, electrical, and acoustic

characteristics as the D 7 and features a noiseless on/off

switch.

The D 7 LTD has the same mechanical, electrical, and acoustic

characteristics as the D 7 and boasts a chrome-plated case to

satisfy specail esthetic requirements.

1 Description

14 D 7/D 7 S/D 7 LTD

The microphone provides a balanced output on a 3-pin male

XLR connector:

Pin 1: ground

Pin 2: hot

Pin 3: return

You can connect the microphone either to a balanced or an un-

balanced microphone input.

• To connect the microphone to a balanced input (XLR con-

nector), use a commercial XLR cable.

• To connect the microphone to an unbalanced microphone

input (1/4" jack), use a cable with a female XLR connector

and a 1/4" TS jack plug.

• Please note that unbalanced cables may pick up interfer-

ence from stray magnetic fields near power or lighting ca-

bles, electric motors, etc. like an antenna.This may cause

hum or similar noise when you use a cable that is longer

than 16 feet (5 m).

2 Interfacing

D 7/D 7 S/D 7 LTD 15

Note:

A handheld vocal microphone provides many ways of shaping

the sound of your voice as it is heard over the sound system.

The following sections contain useful hints on how to use your

microphone for best results.

Basically, your voice will sound the bigger and mellower, the

closer you hold the microphone to your lips. Moving away from

the microphone will produce a more reverberant, more distant

sound as the microphone will pick more of the room’s reverber-

ation.

You can use this effect to make your voice sound aggressive,

neutral, insinuating, etc. simply by changing your working

distance.

Proximity effect is a more or less dramatic boost of low fre-

quencies that occurs when you sing into the microphone from

less than 2 inches. It gives more "body" to your voice and an in-

timate, bass-heavy sound.

If you sing directly into the mi-

crophone, it will not only pick

up excessive breath noise but

also overemphasize "sss", "sh",

"tch", "p", and "t" sounds.

• Therefore, sing to one side of

the microphone or above and

across the microphone’s top.

This provides a well-bal-

anced, natural sound.

3 Using your microphone

3.1 Introduction

3.2 Working Distance

and Proximity Effect

3.3 Angle of Incidence

Refer to fig. 1.

Fig. 1: Typical micro-

phone position.

16 D 7/D 7 S/D 7 LTD

3.4 Feedback

Fig. 2: Microphone

placement for maximum

gain before feedback.

Refer to fig. 2.

The term “feedback” means that part of the sound projected by

a speaker is picked up by a microphone, fed back to the ampli-

fier, and projected again by the speaker. Above a specific vol-

ume or "system gain" setting the sound system will start howl-

ing and the sound engineer will desperately dive for the master

fader to reduce the volume and stop the howling.

To increase usable gain before feedback, the microphone has a

supercardioid polar pattern. It is most sensitive to sounds arriv-

ing from in front of it (your voice) while picking up much less of

sounds arriving from the sides or rear (from monitor speakers

for instance).

To maximize gain before feedback, place the main ("FOH")

speakers in front of the microphones (along the front edge of

the stage).

If you use monitor speakers, be sure never to point any micro-

phone directly at a monitor or FOH speaker.

Feedback may also be triggered by resonances depending on

the acoustics of the room or hall. With resonances at low fre-

quencies, proximity effect may cause feedback. In this case, it is

often enough to move away from the microphone a little to stop

the feedback.

3 Using your microphone

D 7/D 7 S/D 7 LTD 17

3.5 Backing

Vocals

Fig. 3: Two vocalists

sharing a microphone.

4.1 D 7, D 7 S

4.2 D 7 LTD

4.3 Cleaning the

Internal Windscreen

1. Never let more than two

persons share a micro-

phone.

2. The microphone is very in-

sensitive to off-

axis sounds. If the two vo-

calists were to sing into the

microphone from an angle

wider than 35 degrees, you

may end up bringing up the

fader of the microphone channel far enough to create a

feedback problem.

• To clean the surface of the microphone body, use a soft

cloth moistened with water.

• To clean the surface of the microphone body, use the sup-

plied microfiber cloth.

Dust, moisture, lipstick, etc. may gradually turn the windscreen

inside the front grill into a “high-frequency trap” making the mi-

crophone sound dull. We therefore recommend cleaning the in-

ternal windscreen as soon as the microphone sound begins to

lose its sparkle and clarity.

1. Unscrew the front grill from the microphone CCW.

2. Remove the internal windscreen from the front grill.

3. Soak the internal windscreen in soap suds and squeeze out

the suds again. Repeat three or four times.

4. Allow the internal windscreen to dry overnight.

5. Insert the cleaned internal windscreen into the front grill.

6. Screw the front grill on the microphone CW.

3 Using your microphone

4 Cleaning

18 D 7/D 7 S/D 7 LTD

Should the sound remain dull even after cleaning the wind-

screen, you can replace the original internal windscreen with

the extra windscreen supplied with the microphone:

1. Unscrew the front grill from the microphone CCW.

2. Remove the internal windscreen from the front grill.

3. Wet the extra windscreen with a few drops of water and

squeeze the windscreen a couple of times, to the point that

it assumes the correct shape.

4. Allow the extra windscreen to dry.

5. Insert the extra windscreen into the front grill.

6. Screw the front grill on the microphone CW.

4 Cleaning

4.4 Replacing the

Internal Windscreen

D 7/D 7 S/D 7 LTD 19

5 Troubleshooting

Problem Possible Cause Remedy

No sound. 1. Power to mixer and/or

amplifier is off.

2. Channel or master fader

on mixer, or volume

control on amplifier is at

zero.

3. Microphone is not con-

nected to mixer or am-

plifier.

4. Cable connectors are

seated loosely.

5. Cable is defective.

1. Switch power to mixer

or amplifier on.

2. Set channel or master

fader on mixer or vol-

ume control on amplifier

to desired level.

3. Connect microphone to

mixer or amplifier.

4. Check cable connectors

for secure seat.

5. Check cable and re-

place if damaged.

Distortion. 1. Gain control on mixer or

transmitter module not

set correctly.

2. Mixer input sensitivity

too high.

1. Set gain control to stop

distortion.

2. Insert 10 dB preattenu-

ation pad between mi-

crophone cable and in-

put.

Microphone sound be-

comes duller by and by. • Internal or external

windscreen attenuates

high frequencies when

soiled.

• Clean or replace inter-

nal or external wind-

screen.

20 D 7/D 7 S/D 7 LTD

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