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)