AKG PERCEPTION 420 Bedienungsanleitung

PERCEPTION

420

User Instructions.............................p. 2

Please read the manual before using the equipment!

Mode d’emploi .............................p. 14

Veuillez lire cette notice avant d’utiliser le système!

Page

1 Precaution/Unpacking .....................................3

1.1 Precaution .........................................3

1.2 Unpacking.........................................3

2 Description .............................................3

2.1 Introduction........................................3

2.2 Features ..........................................3

2.3

OptionalAccessories .................................5

3 Interfacing ..............................................6

3.1 General ...........................................6

3.2 Pinout............................................6

3.3 Connecting the Microphone ............................6

4 Using Your Microphone ....................................7

4.1 General Hints .......................................7

4.2 Selecting Polar Patterns ...............................8

Page

5 Cleaning................................................8

6 Troubleshooting ..........................................9

7 Specifications ..........................................11

Frequency Response Graphs, Polar Diagrams...................12

The International Page .....................................26

AKG PERCEPTION 420

Table of Contents

AKG PERCEPTION 420

Precaution/Unpacking

1.1 Precaution

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.

1.2 Unpacking

Check that the packaging contains all of the items

listed below:

• Microphone

• Spider suspension

• Carrying case

• Mini poster

Should any item be missing, please contact your

AKG dealer.

2 Description

2.1 Introduction

Thank you for purchasing an AKG product. This

Manual contains important instructions for setting

up and operating your equipment. Please take a

few minutes to read the instructions below care-

fully before operating the equipment and keep

the Manual for future reference. Have fun and

impress your audience!

The

PERCEPTION 420

is a heavy-duty, rugged true

condenser microphone built to the same strict qual-

ity standards as all other AKG products.

Designed on the basis of AKG’s decades of know-

how and feedback from sound engineers around

the world using AKG studio microphones every day,

this general-purpose 1-inch dual large-diaphragm

microphone brings AKG studio quality to the worlds

of recording, live sound, and broadcasting.

2.2 Features

•Selectable polar patterns: The microphone’s

transducer uses a dual diaphragm. This sophis-

ticated technology allows you to select the opti-

mum polar pattern (cardioid, omnidirectional, or

figure eight) for every application.

•Gold-sputtered diaphragm: The diaphragm is

made of a plastic foil that is gold-sputtered on

one side only to prevent shorting to the back

electrode even at extremely high sound pres-

sure levels.

•All-metal body: The all-metal body adds to the

rejection of RF interference so you can use the

microphone near transmitter stations and along

with wireless microphones or other communi-

cations equipment. The extremely rugged,

heavy body and sturdy front grill protect the

microphone from damage from tough handling

on stage.

•High headroom, minimum distortion:

Capable of handling sound pressure levels up

to 155 dB without introducing perceptible dis-

tortion and built to resist high temperatures and

humidity, the microphone will give excellent re-

sults in a wide range of applications.

• Polar pattern selector: Selector 1 on the

microphone front (refer to fig. 1) sets the micro-

phone polar pattern to cardioid, omnidirection-

al, or figure eight.

•Switchable preattenuation pad: Selector 2

on the microphone rear (refer to fig. 2) lets you

increase the headroom by 20 dB for distortion-

free close-in recording. The preattenuation pad

prevents the microphone's output level, partic-

ularly at low frequencies, from overloading the

miniature transformers used in many mixer

input stages, etc.

•Bass cut filter: Selector 3 on the microphone

rear (refer to fig. 2) further reduces low-end

distortion caused by footfall or wind noise, etc.

The filter also minimizes the proximity effect

that close-in miking from less than 4 inches

Fig. 1: Polar pattern selector (1) on

PERCEPTION 420

front.

Fig. 2: Preattenuation (2) and bass cut (3) switch-

es on

PERCEPTION 420

rear.

3 2

AKG PERCEPTION 420

causes in any unidirectional microphone. The

filter rolls off at 12 dB/octave from 300 Hz

downward.

2.3 Optional Accessories

•PF 80 studio pop screen

•ST 305 floor stand

•W 4000 external windcscreen

3 Interfacing

3.1 General

The microphone uses a true condenser trans-

ducer designed for 48-volt phantom powering to

DIN 45 596/IEC 268-15. Neither the diaphragm nor

the backplate are permanently polarized, so the

microphone needs an external power supply.

3.2 Pinout

The microphone provides a balanced output on a 3-

pin male XLR connector:

Pin 1: ground

Pin 2: hot

Pin 3: cold

3.3 Connecting the Microphone

Refer to fig. 3 below.

1. Use an XLR cable to connect the microphone to

a balanced XLR input with phantom power.

2. Switch the phantom power on. (Refer to the user

manual of the unit to which you connected your

microphone.)

AKG PERCEPTION 420

Fig. 3: Connecting to a balanced input with phantom power.

AKG PERCEPTION 420

4 Using Your Microphone

4.1 General Hints

The

PERCEPTION 420

is a general-purpose multi-

pattern microphone for recording, broadcast, and

onstage use.

Every instrument radiates its sound in a specific

way. Therefore, to get the best sound it is crucial to

experiment with microphone placement.

• Refer to fig. 4. Whichever polar pattern you se-

lected, it may be good to know which way the

transducer axis is facing: the front of the

microphone is the side of the body with the

AKG logo and polar pattern selector (1) on it.

• When recording wind instruments or vocals,

make sure not to blow or sing directly into

the microphone.

To avoid unwanted wind and pop noise or

moisture problems, place an optional PF 80

pop screen from AKG between the microphone

and vocalist/instrument.

•Keep the microphone dry. Moisture from

blowing or singing directly at the capsule from

a short distance, or extremely high humidity

may cause the microphone to start crackling or

go very quiet due to partial short circuits in the

polarization voltage.

• If you use the microphone in the open, use an

optional AKG W 4000 windscreen to protect

the microphone from moisture and reduce wind

noise.

•High volume instruments: You can use this

microphone for close-in recording of very loud

instruments (brass instruments, kick drum, etc.).

Just switch the preattenuation pad in to increase

the microphone’s capability of handling sound

pressure levels to 155 dB.

•Low-frequency noise: To suppress low-fre-

quency noise such as air conditioning rumble,

footfall noise, or traffic sounds, switch the bass

cut filter in.

Fig. 4: Microphone front.

4.2

Selecting Polar Patterns

Each of the PERCEPTION 420’s selectable polar

patterns is virtually frequency independent so that

reflected sound, too will be reproduced accurately

and uncolored.

•Cardioid (center setting): This is a standard

setting for recording and gives excellent results

on all kinds of voices and a wide range of

instruments. Remember to aim the microphone

front (see fig. 4 on page 7) at the sound source.

•Figure eight (left-hand setting): The micro-

phone will pick up sounds arriving from the

front and rear with equal sensitivity. Use this

mode to mic up the side signal in M/S stereo

recording or to record two sound sources (talk-

ers, instruments) facing each other. It is also a

good choice for cymbal overhead miking.

• Omnidirectional (right-hand setting): This is

the preferred setting for "all around the mic"

recording, high quality ambience (audience

sound) miking, or far-field recording in excep-

tionally good-sounding large or small recording

rooms, etc.

5 Cleaning

• To clean the surface of the microphone body,

use a soft cloth moistened with water.

AKG PERCEPTION 420

No sound.

Distortion.

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 connected to mixer or ampli-

fier.

4. Cable connectors are seated loosely.

5. Cable is defective.

6. No supply voltage.

1. Channel gain control on mixer set too high.

2. Microphone too close to sound source.

3. Microphone sensitivity set too high.

1. Switch power to mixer or amplifier on.

2. Set channel or master fader on mixer or volume

control on amplifier to desired level.

3. Connect microphone to mixer or amplifier.

4. Check cable connectors for secure seat.

Check cable and replace if damaged.

6. Switch phantom power on.

Phantom power supply: insert batteries.

Check cable and replace if necessary.

1. Turn gain control down CCW.

2. Move microphone further away from sound

source.

3. Switch preattenuation pad in.

Problem Possible Cause Remedy

6 Troubleshooting

Crackling noises or low output. • Partial short circuits due to excessive humidity. • Place microphone in warm, dry room and allow to

dry.

Problem Possible Cause Remedy

AKG PERCEPTION 420

6 Troubleshooting

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