AKG CM311 L Manual

AKG Mikrofon CM311 L

Læs nedenfor 📖 manual på dansk for AKG CM311 L (4 sider) i kategorien Mikrofon. Denne guide var nyttig for 15 personer og blev bedømt med 4.5 stjerner i gennemsnit af 2 brugere

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CM311 A

CM311 AESH

CM311 L

esigned for touring and live-sound

applications, the AKG/Crown CM311

is a rugged head-worn microphone

with unequalled performance. It sounds like

the best handheld microphones - full,

clear, and distortion-free, even with the

loudest singers.

The CM311 is the latest version of the

AKG/Crown’s proprietary Dieroid ®

technology. Its cardioid pickup pattern

rejects sounds from the rear, such as oor

monitors. Its

noise-cancelling ability rejects

sounds at a

distance, such as instruments

on stage and

crowd noise. This results in

the CM311 having outstanding gain-before-

feedback and isolation.

Lightweight and comfortable, the mic’s

headband and boom adjust to t any singer.

An included pop lter greatly reduces

breath noise and pops. Because of the

boom’s unique behind-the-ear design, it

does not cover up the singer’s face.

Three models are available: CM311 A,

CM311

AESH and CM311 L. The CM311 A is

9 V battery or phantom power.

It has a

battery belt pack with an on/o

switch, a

programmable mic on/o switch,

and a

“Mic On” LED. The CM311 AESH has

a T4AF connector, allowing you to connect with

Shure® wireless systems. The L version offers a

3-pin mini XLR output, which fits all AKG wireless

body-pack transmitters.

How to adjust for best t and to prevent

boom bounce

Note: To get the maximum performance out

of this microphone, take the time to adjust it

to t correctly.

For best results, the CM311 A MUST be

custom tted to a single user’s head. This

simple procedure takes only a few minutes.

Please refer to Fig. 5 and locate the parts

described.

1. If the microphone is for yourself, we

suggest that you use a mirror to double

check the t as you make adjustments.

2. Loosen (just a little) the thumbscrew

located on the outside of the foam block,

part way back on the boom. This allows the

boom to slide in and out, and to rotate left

and right.

DIFFEROID

HEAD-WORN

CONDENSER MICROPHONE

Specications

Transducer type:

Electret condenser.

Frequency response (typical):

50 Hz to 17,000

(see Fig. 1).

Polar pattern:

Cardioid (see Fig. 2).

Impedance:

CM311 A, 75 ohms balanced. CM311

AESH and CM311 L, 6 kilohms unbalanced.

Recommended load impedance:

CM311 A,

1000 ohms or greater. CM311 AESH and

CM311 L, 10

kilohms.

Open-circuit sensitivity, typical, close-talking:

CM311 A, 4 mV/Pa* (–48 dB re

1V/Pa),

CM311 AESH and CM311 L, 1.25 mV/Pa

(–58 dB re 1V/Pa).

Power sensitivity, typical, close-talking:

CM311 A: – 42.5 dB re 1 mW/Pa*, CM311

AESH and CM311 L:

–71.5 dB re 1 mW/Pa.

Equivalent noise level (self noise):

26 dB

SPL typical (0 dB = 0.0002 dyne/cm2),

A-weighted.

S/N ratio:

68 dB at 94 dB SPL.

Maximum SPL:

CM311 A, 148 dB SPL produces

3% THD. CM311 AESH and CM311 L, 140 dB

SPL with 3V DC, 148 dB SPL with 9V DC.

Operating voltage:

CM311 A, 9 V DC internal

alkaline battery or 18-48 V phantom power.

CM311 AESH and CM311 L, 3-9 V DC from

the transmitter’s

battery.

Polarity:

Positive pressure on diaphragm

produces positive voltage on CM311 A XLR

pin 2 with respect to pin 3, and on CM

311

AESH and CM311 L shield with respect to

white lead.

Current drain:

CM311 A, 6.5 mA nominal.

CM311 AESH and CM311 L, 0.27 mA

nominal.

Battery life:

CM311 A, 85 hours. CM311 AESH

and CM311 L,

approximately equal to

transmitter battery

life.

O

Out

(

Mat

Fini

Dim

Incl

Opt

attenuation:

70 dB.

tpu

t connectors:

CM311 A, 3-pin pro audio

R type). CM311 AESH, TA4F for Shure®

wireless systems

. CM311 L, 3-pin mini XLR.

terials

High-impact plastic mic housing,

bras

s boom, steel wire headband, high-

mpac

t plastic and steel battery pack.

Satin black.

weight:

Head-worn mic, 2.1 oz (61 g).

CM311

A belt pack and battery, 6.1 oz (173g).

mensions

Headband 5.5-inch (13.97 cm)

diamete

r, adjustable. Boom approximately

-inch (17.78 cm) x 3-inch (7.62 cm).

See

Figs. 3 and 4.

ude

d accessories:

Microphone carrying

ase

, WS-6 foam pop lter, clothing clip.

iona

l accessories:

PH-4B phantom power

uppl

y (4 channels, AC powered). PH-1A

phanto

m power supply (1 channel, battery

-adapter powered). WS-14 accessory

windscreen.

asca

l = 10 dynes/cm

= 10 microbars = 94 dB SPL.

Produkt Specifikationer

Mærke:	AKG
Kategori:	Mikrofon
Model:	CM311 L

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