Audio Technica Midnight Blues MB3000L Handbuch

Operation and Maintenance

Output of the

3000

is low impedance balanced. The profes-

sional 3-pin microphone output connector mates with XLRF-type

cable connectors. The balanced signal appears across Pins 2

and 3, while the ground (shield) connection is Pin 1. Output is

phased so that positive acoustic pressure produces positive

voltage at Pin 2 in accordance with industry convention.

The MB

3000

utilizes a MagnaLock on/off switch. This specially-

designed switch operates silently and may be locked in the “on”

position to prevent accidental turn-off during use. To lock, slide

the switch up into the “on” position (Fig. 1a). Using a small flat-

head screwdriver, rotate the small screw in the center of the

switch 90 degrees (1/4turn)

counter-clockwise

(Fig. 1b).

Never

force the screw.

When the screw slot position is horizontal

(“across” the microphone body), the switch is locked. To unlock

the switch, turn the screw 90 degrees

clockwise

until the screw

slot position is again vertical (in line with the microphone body).

Never try to turn the switch more than 90 degrees or

rotation.

The switch may only be locked in the “on” position. Do not try

to turn the screw when the switch is in the “off” position.

While every effort has been made to provide an extremely

rugged microphone, reasonable care should be taken to avoid

abuse. The microphone can withstand a wide range of tempera-

tures and humidity without damage. Take care to keep foreign

particles from entering the windscreen. If the microphone is

exposed to an environment with small iron or steel filings

(on a workbench, for example) these fine metal particles can

accumulate on the diaphragm, reducing low-frequency response.

Excessive accumulation of dirt on the windscreen will reduce

high-frequency response.

MB3000L

Neodymium Dynamic

Cardioid Microphone

ONONON

OFF

Fig. 1a Fig. 1b Fig.1c Fig. 1d

not

try

not

turn to lock switch

Unlocked Locked screw clockwise in the “off”

Position Position to lock position

Description

The

3000

is a wide-range moving coil dynamic mic with

a cardioid pickup pattern. It features a high-output neodymium

magnet for maximum performance with all equipment.

The

3000

is specifically designed for use in high-quality

recording and sound reinforcement applications to meet the

needs of professional musicians and sound engineers.

Extended frequency response, high sensitivity and extremely

fast transient response meet the demands of high-quality vocal

and instrumental pickup.

A special internal shock mount system minimizes handling and

case noise. The microphone also features the MagnaLock™

on/off switch for silent operation. The switch may be locked in

the “on” position to prevent accidental turn-off during use.

The cardioid pickup pattern of the

3000

is useful in reduc-

ing unwanted background noise and controlling feedback,

especially when used extremely close. Miking instruments or

vocalists at very close range also effectively reduces “leakage”

from one performer to the next. Low-frequency noise is also

reduced by a low-frequency roll-off of sounds more than one

foot distant from the microphone.

The high-output neodymium design and low-mass diaphragm

and voice coil assure excellent signal-to-noise ratios with

microphone mixers, tape recorders, and other electronic inputs.

The

3000

is capable of undistorted output even in very

intense sound fields.

Enclosed in a rugged die-cast housing, the

3000

features

a special, baked-on “Midnight Blues” finish. In addition to

being attractive and comfortable to hold, this special finish

further reduces handling noise and increases durability.

A multi-stage windscreen reduces wind noise and “popping”

when performers work extremely close. The included micro-

phone clamp permits mounting on any microphone stand with

5/8"-27 threads. A foam-lined carrying case is provided to protect

the microphone during transport and storage.

MB3000L

SPECIFICATIONS

†

Element Neodymium Dynamic

Polar Pattern Cardioid (Unidirectional)

Frequency Response 50-16,000 Hz

Open Circuit Sensitivity 2.5 mV (–52 dBV) at 1 Pa*

Impedance 250 ohms

Switch MagnaLock™on/off

Weight (less clamp) 12.0 oz (340 grams)

Dimensions 7.10" (180.3 mm) long, 2.16" (54.9 mm)

head diameter, 1.38" to .87" (35.0 mm

to 22.0 mm) tapered body diameter

Output Connector Integral 3-pin XLRM-type

Accessories Furnished Tapered slip-in stand clamp for

5/8"-27 threaded stands;

protective foam carrying case

†In the interest of standards development, A.T.U.S.

offers full details on its test methods to other industry

professionals on request.

* 1 Pascal = 10 dynes/cm2= 10 microbars = 94 dB SPL

Frequency Response

1 kHz

LEGEND

SCALE IS 5 DECIBELS PER DIVISION

120

150

210

240

270

300

330

180

Polar Pattern

XLRM-type Plug Wiring

Low Impedance Balanced

/4" Phone Plug Wiring

Low Impedance Unbalanced

RED WIRE

TIP SLEEVE SHIELD

WHITE WIRE

Midnight Blues

Frequency in Hertz

Response in dB

10 dB

20k

10k

500

200100

LEGEND 12" or more on axis

OPTIONAL ACCESSORIES

MBC

15' 2-conductor, shielded,

vinyl-jacketed cable with XLRF-type

connector at microphone end, 1/4" phone

plug at equipment end.

MBC

15' 2-conductor, shielded,

vinyl-jacketed cable with XLRF-type

connector at microphone end, XLRM-type

connector at equipment end.

8114 foam windscreen (slip-on).

8201 line matching transformer

(Lo-Z to 50,000 ohms).

8202 adjustable in-line attenuator for

use with balanced Lo-Z microphones.

8312 2-conductor, shielded,

vinyl-jacketed, broadcast-type cable

with XLRF-type connector at microphone

end, 1/4" phone plug at equipment end.

Available in 10', 20' & 25' lengths.

8314 2-conductor, shielded,

vinyl-jacketed, broadcast-type cable with

XLRF-type connector at microphone end,

XLRM-type connector at equipment end.

Available in 10', 20', 25', 30', 50' & 100'

lengths.

8407 universal “clothes-pin” clamp fits

both tapered and cylindrical microphones.

8410a shock mount for boom or stand

operation. Universal “clothes-pin

”

clamp

fits tapered and cylindrical microphones.

8415 low-profile shock mount for

boom or stand operation.

One-Year Limited Warranty

Audio-Technica microphones and accessories purchased

in the U.S.A. are warranted for one year from date of

purchase by Audio-Technica U.S., Inc. (A.T.U.S.) to be free

of defects in materials and workmanship. In event of such

defect, product will be repaired promptly without charge

or, at our option, replaced with a new product of equal

or superior value if delivered to A.T.U.S. or an authorized

service center prepaid, together with the sales slip or other

proof of purchase date.

Prior approval from A.T.U.S.

is required for return.

This warranty excludes defects due

to normal wear, abuse, shipping damage, or failure to use

product in accordance with instructions. This warranty

is void in the event of unauthorized repair or modification.

For return approval and shipping information,

contact

the Service Department, Audio-Technica U.S., Inc., 1221

Commerce Drive, Stow, Ohio 44224.

Except to the extent precluded by applicable state law,

A.T.U.S. will have no liability for any consequential, inci-

dental, or special damages; any warranty of merchantability

or fitness for particular purpose expires when this warranty

expires.

This warranty gives you specific legal rights, and you may

have other rights which vary from state to state.

Outside the U.S.A., please contact your local dealer for

warranty details.

Audio-Techinca U.S., Inc., 1221 Commerce Drive, Stow, Ohio 44224

Audio-Technica Limited, Old Lane, Leeds LS11 8AG England

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