AKG D-320B Engineering Data

DESCRIPTION

INTRODUCTION :

tions

conducted

tory

samples
incredible ordeal
dropped

from
against hard surfaces
most

outrageous
pite incurring
"bounced

-

each

back"

performed with the sound quality and finesse normally

associated only with a more delicate studio microphone_

throughout

of

its

of

heights

treatment

some

in

In a rather

new

D-300

abuse.

of

six

and

purposely

ever inflicted

cosmetic

working

astonishing

the

U_S.,

Series

Sample

feet

or

damage,

order

but

series

AKG

recently

microphones

units

were

more,

repeatedly

subjected

on

microphones.

each

- even

more

of

demonstra-

put

through

intentionally

to

some

unit

not

important

inven-

an

struck
of

the

Des-

only

While AKG does
phone,
an
its

and

it

nonetheless

extremely

D-300

Series, it has

vastly

important

superior

microphones -the

cessfully blend

and

the

with

one

shock/noise
combined
able balance

remarkable

These

away

from

uating

the

and

their
patented)
from

the

As a result,
will surely
broadcast
tough,

these
artistic
abuse,

rough

too

common

Furthermore,

makes

it

sive

backup

the

virtually

indestructible

of

the

rejection

factors

and

easy-to-service modular

established

real-world needs

sound

engineers, AKG

acoustical,

ground

set

the

up

D-300

the

industries

units

demands

handling

in

remotes,

the

unnecessary

microphones

PERFORMANCE:

D-300 Series,

and
design principles
fully professional
response
the
at

and

tonal

D-320B

moderate

WINDSCREEN/POP-FILTER

offers

cost.

not

advocate

held

these
point:
succeeded

generation

very first

wide-range

most

comprehensively

ever devised.

are

the

D-300s'

design goals

industry

of

electrical

to

meet

those

Series

performance

for

years

are

capable

in

the

studio

and

various

road

D-300s'

The
embodies
that

to

carry

on

D-320B

went

simplified

tour.

most

instrument

flexibility rival

an

astonishingly

ASSY

intentional

demonstrations

That,

with

in

creating

of

musicians'
instruments
response

of a studio

toughness

Further

distinctive

were

achieved

concepts.

touring

vocalists,

developed

and

mechanical

needs .

is

a family

standards

to

come.

of

satisfying

while shrugging

forms

shows,

club

field-serviceability

an

arsenal

is

the

mid-priced model

of

the

into

the

creation

whose

frequency

those

high level

SPECIAL

SAFETY-BASKET

abuse

of

the

development

a radically

and

of

their

of

a field

effective

enhancing

styling,

construction

only

After

carefully

instrumentalists

several

configurations

of

microphones

of

the

pop-music

Elegant,

the

off

of

noise

dates

of

bulky

uniquely

of

range,

of

studio

of

DESIGN

ASSY

any

micro-

to

dramatize

of

new

broadcast

kind

to

suc-

microphone

microphone

systems

of

these
comfort­_

by

breaking

eval-

unique

(and

that

and

yet

bulldog-

most

sUbtle

the

daily

that

are

all

and

the

like.
now

and

expen-

in

the

sophisticated

the

series. A

transient

dynamics,

performance

AND

CONSTRUCTlON

TRANSDUCER

/

With its variable bass-versus-distance
emphasis
sively
smooth

"punch")
tion,
offers

"shading"
or

any

It

is
microphones
its

ter
assures minimum
bass -roll

In

addition,

far
also unusually
acteristics -extremely
indispensable
coloration
while
sion
towards

DESIGN/CONSTRUCTION :

however,
it

is
ruggedness,
fatigue-free
ease

apparent

"walking-tour"

or

"proximity

diminishing

presence-rise

plus three

the

D-320B

effect"

bass

response

contour

different

is

an exceptional

its users highly flexible personal

musical

also

of voices

noteworthy

mood

or

instruments

and

style.

that

the

- preserves critical signal-to-noise ratios in all

equalization

network,

off

more

modes. This

which

maintains

midband

settings.

the

D-320B's

discriminating

uniform

is

constant

impedance

hypercardioid

than

that

with

respect

important

for

sound

reinforcement -produce

of

providing

of

unwanted

the

is

the

combination

of

field service.

in

desired

rear

not

extremely

handling,

the

sounds

exceptional

acoustic

of

the

microphone.

merely its

of

effective

comfortable

The

exploded

description

(and

feedback

outstanding

that

performance

key

view

that

when

when

(for

degrees

to

D-320B - unlike

due

to

of a standard

in

at

the

highly

What

noise-rejection capabil ities,

balance

to

al/

below

follows

TECHNIQUES

PLUG-IN TRANSDUCER

MODULE

contour

used close

used

added

of

creative

control

suit

farther

bass-roll

tool -one

virtually

(marked

up;

progres-

away)

crispness

off

equaliza-

over

the

any

locale,

competitive

its specially designed fil-

midband

variations

sensitivity

directional

in

all

pattern

cardioid

to

frequency.

broadcasting

These
and

utterly

negligible

sides

of

the

microphone

predictable)

and

sets

the D-320B

performance.

with

of

these

and

overleaf

background

and

factors

1I~'i'i".:I.II"iU@

/ B

suppres-

Rather,

its

unmatched

extraordinary

is

readily

in

the

detailed

.

ASS -ROLL-

OFF

SWITCH

AND

FILTER

bass

and
and

that

tonal

of

and

three

and

char-

noise

apart,

'"

is
is

OUTER

LAYER

DIFFUSING
MIDDLE LAY

ER

INDEX
NOTCH

REINFORCED
C

ASTING

WIRE MESH

W/

HUM-

BUCKING

WINDING

SP

W

RING

/CO

AL

ELASTOMER-

SUSPENSIONS

MPLIANT

DOMES

2-CONTACT

FEMALE

CONNECTOR

MALE

CONN

The

microphone's

an

unusually
This assembly
wire-mesh
reticulated
er

into a removable
secures
is

this
pop
screen

As

reinforced

outer

polyurethane-foam

the

entire

combination

and

similar

or

pop

tough

as

against

assembly. Note

the

inside

of

front

of

the

parts

from

head-on

ket

consists
reinforced
screen
ing,

that

the

open-frame

coincides

casting

unique

sturdy

three-layer

consists

layer, a blast-diffusing

unit

in

acoustic

filter

is

the

windscreen/pop

impact

that

the

windscreen/pop

transducer

impact

of a resilient

also has
rugged assembly with
housing.

Next

in line

terms

of

and

noise

ing,

the

tion

to

detail

To

start
directions
isolation
and

spurious
shaped
tem

and
advantages
these

ring

of

series

projections

highly

damped
normal
decouple

is

its

superb

suppression

system

that

with,

the

within

from

vibrations

elastomer

the

other

of

both

suspensions

compliant,

around

handling

the

transducer

the

performance,

is a prime

AKG engineers lavished

transducer

the

the

effects

suspensions -one

at

its

low-pass

conditions,

design

and

windscreen/pop-filter

of a shock-absorbing

inner

liner) plus a

to

the

reducing

threaded

microphone

the

effects

interference,

seldom,

if ever,

filter

damage

the

safety

basket

filter

system -thus

damage.

dome-shaped

casting.

with

indexing

structural

highly

side

ports

advanced

Fitted

notches

members

its

and

its

modular

example

system

microphone

of

. This

the

rear

hard

and

has a

progressively

periphery

impact
is

achieved

of

soft

dense,

- in

housing

the

suspension

compressible

mechanical

the

compliant

system

from

DESCRPT10N

construction

fabric

layer

(sandwiched

retaining

housing.

of

wind

that

required.

is

alone,

by a special

is

contoured

and

also

isolating all

As

shown,
ribbed

with

in

the

that

in

transducer

unusually

field-serviceable packag-

of

the

care

on

"floats"

for

damage,

by

near

the

system.

relatively

effect

forming a complex,

filter.

mechanically

begin

assembly.

stainless-steel

middle

layer

ring

So

effective

noise,

an

external

it

is

safety-basket

to

to

surround

the

safety

cage

joined

a fine-wire-mesh

microphone

align

the

the

microphone

system.

thorough

and

the

the

D-320B.

uniformly

unprecedented

handling

two

special ring-

front

of

To

combine

designs,

hard

body

dome-shaped

Therefore,

domes

effectively

and

with

and

togeth-

that

breath

wind-

further

support

the

internal

bas­to

hous-

entire

In

shock

atten-

in all

noise

the

sys-

the

each

of

and

under

mo-

(Contirued)

tionally

conditions

impact),
applied
allowing

These

AKG's

ther

precaution,
winding
noise
from

dimmers,

The

transducer,
quency
in a

resistant

a

noise
and

keyed

the

three-position

within

The

microphone
resistant
and

finished
resistance,
on

competitive
screenipofj
encapsulates
moisture

Should
pop

filter
lifted
withdrawn
Spare

a

The D-320B
with a standard
phone
a

foam-lined

- listed in

induced

the

vibration.

(dropping

domes

the

microphone

increasingly

g-force, in a progressive

the

harder

body

of

extraordinary

comprehensive

to

cancel

from

ever-

the

the

present

power

suspensions,

scheme

transducer

effects

power

switchboards

computer

range

and

superb

replaceable

thermoplastic,

two-contact

to

mate

plug-in

female

with

the

a special

bass-roll

the

microphone

housing.

housing

zinc-alloy casti

ng -elegantly

in glare-free

the

finish

is

electroplated

microphones)

filter

and

the

safety

all

internal

parts

spray.

field service ever

can

be

quickly

out,

and

the

transducer

from

the

microphone

assem blies

and

parts are readily available.

is a low-impedance

3-pin male

is

supplied

the

complete

vinyl

protective

Technical

Data

Further,

braking

each

suspension

of

incorporates a hum-bucking

of

and

designed

transient

module.

module

audio

connector

two-pin

off

switch

itself

is

matte

. In

basket,

against

become

unscrewed,

module

XLR-type

with

an SA-31
case. Several
section

under

extremely

or

subjecting

compress,

in

proportion

it

action -ultimately

to

act

as a

however,

noise

are

only

suppression.

electromagnetically

lighting

and

response,

for

the

cables

like.

widest

is

possible fre-

encapsulated

Injection-molded

is

fitted

with

a special low-

precisely aligned

male

connector

with its filter

a lightweight,

styled,

nickel.

For

(not

conjunction

this

metal

necessary,

the

safety

simply

housing

balanced-output

connector.

optional

carefully

maximum

merely

with

housing

particles,

the

windscreen/

basket

unplugged

for

replacement.

stand

adapter

yet

painted,

unit

The

accessories

- are available.

abusive

to

lateral

to

bumper.

part

of

As a fur-

induced

as well as

of

stress-

(and

network)

impact-

balanced

wear

as

the

wind-

effectively

dust

and

easily

and

fitted

micro-

and

Transducer

Directional
Frequency

Nominal

Type:
Characteristic:

Range (bass set

Impedance
Rated-Impedance
Recommended

Sensitivity

Open
Maximum

EIAG

High-Z
20T,-20TS

at

1 kHz:

circ'uit : 1.4

power

:

m

output

(optional):

Tolerance:

Sound

Pressure Level

40

Hz,

1000

Dynamic

at

Category:

Load

Impedance:

level:

w/MCH·

Hz,

5000

Hypercardioid

norm):

1 kHz (bass

250

-57

-149

-47

+0,

for

1%

THD:

Hz:

80-18,000

set

norm):

ohms

;;;'600

ohms

mV/Pa;-57.1

dBm

(re:

dBm

dBV

at

1

-2

dB

128

dB

Hz

290

dBV*

lmW/l0

Pa*

TECHN1CAl

ohms

dynes/cm

2

DATA

Hum

Case Material:

Dimensions:

Schematic:

Net
Included

SA-31 flex.
Foam-lined

Optional

)

SA-26
PF-l0
GN-7E,

KM-series

ST -series ta ble
MCH-series

Sensitivity

See

Weight:

Accessories:

Accessories:

clothespin

foam

GN-20E

j ?

,......

(1

mG

Nickel-plated

See

Dimensions

Schematic

340 g (:::::;12

snap-in

stand

vinyl case

stand

pop

filter
modular

floor

and

stands

heavy-duty

r-.

...........

field; bass

set

die-cast

figure

figure

oz)

adapter

adapter

(red,

blue,

flexible-gooseneck

boom

stands,

microphone

norm):

zinc alloy

with

with

5/8-in.

yellow,

stand

cable

-142

5/8-in .

-27

-27

off-white,

kits

accessories

assemblies

dBm

thread

thread

gray)

I

NORMAL

FREOUENCY

AND

POLAR

RESPONSE

+10

o dB

-10

=RESPONSE

=rvlrn

-

:ON

(rv

AXIS

3

*

AT

-1/4')

.'

-20

20Hz

RESPONSE

SETTING

+10

OUTLINE : The
As

specified in
frequency
a fixed presence-rise
pattern

with

tail, it shall

characteristics
ambient

minimum

settings.

modular

cial
tance

to

motionally,

particles, for fatigue-free handling

use,

and

PERFORMANCE ; The

frequency
its low-frequency response)
lowing on-axis
contour
working
boost

at a working
contour
5000

Hz.

the

Under
microphone

tern

with

of

90

degrees, typical off-axis

than

5-6 dB from

180

degrees,

at

100

Hz

shall be

maintained

Under

the

1000

Hz,
mV/Pa

(-57
However,
other

sensitivity figures from this

rated

impedance
power-level
impedance

(G

rating
150

ohms.

sound-pressure

not

exceeding 1

Low-frequency response

a

three-position
microphone
on-axis bass
front-to-rear disc rim
switch

position

all

normal values as specified; (2)

medium-rolloff

(3)

the

switch

just all normal values

50

AT

"-'lm(ru3

OF

BASS

microphone
subsequent

range

accompanied

contour,

respect

incorporate

acoustics,

midband

As

further

impact

or

for

extraordinary

range (i.e.,

to

three

and

impedance
specified in

and

damage

facilities

different

and

in

design

electromagnetically

frequency

characteristics:

at

100

Hz

distance

from

respect

that

of

1 m (""3-1/4

distance

1500

Hz

to

normal,

unequalized

shall have a highly

to

frequency

125-16,000

minimum

and

20

dB

at

over

normal,

the

in

m

unequalized

microphone

.1 dBV)

accordance

output

shall be

of

)

The

housing.

and a nominal

shall be

of

-57

categorized

-149

dBm,

microphone

level of

rolloff/proximity-effect

position

%.

bass-rolloff

The

ination

marked
symbol

50

with
shall

20

100

ROLLOFF

shall

detail, it shall have

by

and

frequency.

shall

maintain

construction

to

noise

ease of field service.

microphone

of

shall range

of 1 cm

10,000

as follows: (1)

Hz; (2)

front-to-rear

1000

the

entire

shall have

with various

categorized

dBm

the

shall

Pa

(128

characteristics

switch

switch shall shift specified

in a fixed

the
adjust

marked

dB

downward.

*

ALL

SWITCH

MINIMUM

+3dB

200

TYPICAL

AT

CURVES SHOWN

SET

POSITION

REJECTION

DEVIATION

500

PROXIMITY

"-'lcm("-'3/S")

TO

WITH

ITS

AT

1350 1800 OFF

ALLOWABLE

1000

ON

BASS

(NORMAL)

2000

BASS-ROLLOFF

1/4')

ON

AXIS,

AT

SWI

TCH:

ARCHITECTS' AND

be a dynamic

a variable bass-versus-distance

a highly

for

settings

variations

subsequent

balance

range

80-18,000

(1) a 17-dB variable bass-versus-distance

It)

Hz

conditions

uniform

frequency

Hz. An

conditions

open-circuit
(re: 1

as

rated

normal

the

with

uniform

As

also specified in

adjusting

(whether

induced),

its

to

suit

constant

in all

detail,

techniques

acoustically,

for

and

comfort

shall have a

unaltered

Hz,

accompanied

from

-7

to

(""3/8 in.); (2) a

that

at a sound-incidence

discrimination

frequency

an

industry

as follows: (1)

250

impedance

be

capable

dB SPL)

accessible

switch

all

the

dB response rolloff

+10

dB

shall

previously specified,

hypercardioid

at a sound-incidence

response shall

effective

range.

previously specified,

open-circuit

(true)

impedance

standards

value,

mW/l0

ohms;

(2) for

of

at

1000

shall

be

through a cutout

boost,
relationship

·response
position

normal

values

sharp-rolloff

EACH

NOTE:

AT
NORM.,
(IN FIGURE
ACCORD.

500

pressure·gradient

an

intrinsically

hypercardioid

low-frequency

user

preferences

midband

three

of

it shall

for

exceptional

protection

under

normal,

by

user

typical

proximity-effect

fixed

boost

response +5 dB

BASS

PROXIMITY 8 REJECTION

WITH

1000

contour,

subsequent

response

sensitivity
these

response

employ

mechanically,

from foreign

prolonged

unequalized

adjustments

by

the

presence-rise

directional

not

vary

angle of

shall

hypercardioid

dynes/cm'),

shall

handling a maximum

adjustable

off-axis response,

symbol

exceed

pattern

sensitivity

of

290

for

calculating

the

microphone's

for a maximum-

be

categorized

by

100-Hz

shall

marked

dB

downward;

symbol

the

sensitivity

distortion

means
values

maintain

with

shall ad-

an EIA

Hz with

as follows: (1)

10

ABOVE)

2000

ENGINEERS' SPECIFICATIONS

type.
wide

polar

de-

and/or

and
spe-

resis-

of

fol-

at

at

the

pat-

angle

more

135-

9 dB

and

at

of

1.4

ohms.

rated

as

of

in

the

of

and

the
the

EFFECT

WITHIN

AXIS

--

*

AXIS

ANY

5000

AW-0J2

*.

ONE

0 B

-,O

OCTAVE.=

10,000

CHARACTERISTICS

Aw-03Z0BI8

SETTINGS

ALSO

SELECTED

SHIFT

5000

To preserve
associated
istics

at
sensitivity;
impedance

three

of its
bass rolloff

off

set

(3)

with

mately

-25%.

DESIGN/CONSTRUCTION: To
lined

or
special
shock-absorbing

basket,

the

front

compensated

impact-resistant

and

a

containing

the

microphone's

blies shall be

The

three-layer

wind

press

shall also

head-on

ing stainless-steel wire-mesh

blast-diffusing fabric

ulated

polyurethane-foam
ing ring
the

main

The

internal
supportively
around
screen/pop
module
shall

consist

forced

truncated-conical

screen

to

ing

notches

main

housing.

To

further
damage,
vibrations,
in

the

main

of

two

special ring-shaped
module
end.

To
signs in
filter, each
body

and
projections
normal

couple

OTHER

IN

ROLLOFF.

10,000

optimum

equalization

1000

Hz in all

~2)

minimum
previously
positions,

set

to

to

medium,

bass

rolloff

specified

modular
internally

of

the

plug-in

the

as

follows :

noise,

partially

impact

to

mate

housing.

safety-basket

just inside

the

front

filter against,

from,

the

of a resilient

coincide

to

align

isolate

as well as

the

entire

housing.

near its

com

bine

the

form

of

these

a series of

around

handling
the

transducer

A SSI-I~2

THAN

CURVES

=±::::::

=+=

normal,

impedance

up

assemblies

three-layer

reinforcing

transducer
main

bass-rolloff

audio

windscreen/pop-filter

breath

isolate

damage.

the

entire

of

the

effects

with

the

the
to

This

front

the

of a complex,

ring

compliant,

its

conditions,

O-,.O

_

20,000

6

80

20,000

midband

network

three

variations

specified

290-ohm

impedance

set

to

sharp,

to

this

windscreen/pop

system;

module

housing,

output

pop,

the

The

outer

middle

inner

assembly

assembly

the

transducer

and

of

dome-shaped

open-frame

side

ports

entire

transducer

reduce

module

degree

elastomer

end,

and

advantages

suspensions

periphery

module

90"Hf-+-+-+-H

90·H-+-+-+-H

signal-to-noise ratios

shall

exhibit

bass-roll

off

switch

in

the
. With
impedance

shall

impedance

achieve all

point,

the

interrelated

the

windscreen/pop

containing

mating

switch

connector.

290-<>hm value of nominal

the

bass-roll off
shall vary as follows: (1)

shall

not

decrease

shall decrease

of

microphone

as follows:

filter; (2) a

(3) a specially

the

transducer

with

the

with its

Specific

assembly shall effectively sup-

and

similar

transducer

assembly

layer, a

layer

sandwiched

layer,

windscreen/pop

module,

additionally

head-<>n

in

assembly

module

the

eHects

shall float

of

isolation shall be achieved

the

other

of

highly

progressively

that

the

compliant

from

acoustic

module

shall

consist

removable

and

an

securely

shall

internally
with

be

specially

thus

impact

damage.

ribbed

casting

the

shall

fitted

main

housing

with

structural

from

of

handling

uniformly

suspensions,

fitted

both

hard

damped

shall have a dense, relatively hard

compressible

function

domes

mechanically

l-H-+-+-H90·

a

o

.:0

~

---

_._.

r--+-l--H90·

at

following

settings:

all

(ll

the

switch

vary;

(2)

by

the

associated

with

filter

isolating

cage,

to

and

with

approximately

by

characteristics

shall

consist

(1)

a removable

removable

filter

and

suspended

system;

first

three

network

details

of all assem-

interference,

from

the

of a shock-absorb-

liner

made

an

open-cell retic-

threaded

an

external

contoured

and

reinforcing

the

in all

one
the

as follows: (1)

protectively

the

The

safety

joined

with

fine-wire-mesh

and

having index-

members

effects

noise

and

directions

fitted

around

module

soft

suspension

low-pass mechanical

dome-shaped

shall effectively de-

and

motionally

30.

2000

4000

{

BODO

IS,OOOHz

times,

the

character-

constant

set

to

each
with

bass roll-

-3%;

approxi-

out-

of four

safety

protecting

and

hum-

(4)

an

assemblies

plus

and

effects

up of a

retain-

thread

to

fit

the

wind-

transducer

basket

to

a rein-

in

the

of

impact

spurious

with-

by

means

the

at

its rear

de-

under

in-

Hz
Hz
Hz

of

on

duced

handling
dropping
shall increasingly compress,
gressive

braking

each suspension
A moving-<:oil

of

the

transducer
designed
response, shall

shall

further

of

stray

power

switchboards.
injection-molded
at

its rear

aligned

and

with a two-pin

The

main

(1)

an

internal
securely
the

rear

audio

connector

Switchcraft

with a tapped

istics

previously

with

the

noise; (2)

the

microphone

action

that

to

act

as a bumper.

transducer

for

magnetic

and

end

system

module.

widest

possible

employ a nonmetallic

incorporate a hum-bucking

fields

from

The

of

with

keyed

to

male

audio

shall

two-pin

noiselessly

of

the

transducer
designed
or

equivalent

inductor

specified.

within

stress-resistant

a two-<:ontact female

mate

incorporate
male
with

to
the

end

housing

A3F,

ARCHITECTS' AND

under

subjecting

in

proportion

shall

ultimately

The

transducer

frequency

power

body

of

the

entire

audio

the

two-<:ontact

module;

to

mate

connectors;

provide

The

switch

transducer

extremely

it

to

to

shall be

range

MAKROFO

winding

and

lighting

the

transducer

thermoplastic,

module

within

the

following

connector

(2)

with

Cannon

the

adjustable

and

module

or

element

connector

DIMENSIONS

abusive

lateral

applied

allow

positioned

element

audio

the

female

an

(3) a low-noise

inductor

impact),

the

shall

and

optimum

L™

to

cancel

cables,

and

connector

securely

main

housing.

three

precisely

audio

external

XLR,

bass-rolloff

as

follows

conditions

g-force,

at the

diaphragm,

module

major

shall

ENGINEERS'

(e.g.,

the

domes

in a pro-

harder

body

of

front

be

dimmers,

shall be

and

aligned

connector

three-pin

Neutrik

SP3T

:(1)

end

computer-

transient

and

the

effects

and

shall be

fitted

precisely

noiselessly

elements:

to

mate

male

3FC,

switch

character-

interrelate

the

normal

at

SPECIACATIONS (Continued)

position
medium-rolloff

inductor
position
parallel
structural
basket,
windscreen/pop
main
dust,
resistant

finish
ligh t

The
mm ("'
minimum
The
promote
use.
microphone
repair.

An
thread,
microphone.
0-320B.

of

the

in

parallel

of

the

with

the

members

and

an

housing

and

reflections.

assembled

microphone's

To

AKG

shall

moisture

zinc-alloy

for

maximum

2-1/16

in.)

diameter,

fatigue-free

facilitate

shall be

model

and a foam-lined

The

switch

shall

(-10

dB)

with

switch

shall

transducer.

to

external

microphone

mate

thread

filter.

In

protect

spray.

The

casting,

wear

in

maximum

and

the

weight

handling

field

service, all

quickly

SA-31 swivel

microphone

disconnect

position

the

vinyl

of

transducer;

connect a tapped

The

main

with

the

to

mate

conjunction

the

transducer

main

housing

and

shall have an

resistance

shall

be

185

diameter

net

weigh t shall

distribution

balance

four

and

easily separable

stand

adapter

carrying

herein

SCHEMATIC

the

inductor

the

switch

shall

(3)

the

sharp-rolloff

portion

housing

indexing

with

with

and

and

case shall be

notches

the

those

module

shall be a

electroplated

for

freedom

mm

("'7-5/16

by

20

not

exceed

shape shall be such

and

comfort

constituent

with

specified

completely

connect

of

the

shall also

on

internal

thread

two

assemblies,

from

metal

lightweight

matte-nickel

from

in.)

mm (",,

13/16

340 g ('"

under

assemblies

for

replacement

standard

5/8-in.

provided

shall be the

; (2)

the

the

entire

(-20

dB)

inductor

incorporate

the

safety

on

the
the

particles,

impact-

specular

long

by

53

in.)

in

12

oz).

that

they

prolonged

of

the

or

-27

with

the

AKG

in

14--

------

'V53mm

(rv2-1/16")

2146 Z 000l/30e

-

rv

(""7-5/16")

185

mm

- - - - - -

'U

(rv

20mm

13/16")

AW-

OJ208-200

IUJ--

I

--

-.,

I~

I~

I

I

I

-l

- -

RED(IN

--

PHASE)

HUM-

G

BASS-

ROLLOFF

SWITCH

I

WHITE

-1019

Positive pressure
positive voltage

on

diaphragm

on

"in

produces

phasa"

lead.

21-680-1

OM I

AKG

ACOUSTICS,

A

NORTH

A~ERICAN

77 Selleck Street, Stamford,

©

AKG

Product

Acouotlcs

®

AKG

design

. Inc.

and

1980

price.

AkulllllCh",

und

ere

\( Ino-

PHILIPS

CT

06902 • (203)

Oerat8

subject

10

INC.

COMPANY

Printed

GmbH. Austr

chenge

without

348

-2121

In U .S A

a

nollce

.