Shure Microflex MX391 Series Bedienungsanleitung

27A14048 (Rev. 3)

WIRED MICROPHONE

MX391

USER GUIDE

MICROFLEX SERIES

Printed in U.S.A.

Le Guide de l’Utilisateur

Guia del Usuario

Guida dell’Utente

Bedienungsanleitung

取扱説明書

Manual do Usuário

Surface Mount Microphones

Shure Microflex®MX391 Series microphones are small, surface-mounted electret

condenser microphones designed for mounting on conference tables, stage floors,

and lecterns. Their high sensitivity and wide frequency range make them especially

suitable for picking up speech and vocals in sound reinforcement and recording

applications.

• Flat frequency response across the vocal range for uncolored sound

• Interchangeable cartridges that provide a choice of polar pattern for each

application

• Sleek, low-profile design for unobtrusive appearance

• RF filtering

Model Variations

Microflex MX391 microphones are available in black or white.

The polar pattern of the included cartridge is indicated by a model number suffix:

/C Cardioid

/S Supercardioid

/O Omnidirectional

/N Cartridge not included

Interchangeable Cartridges

Microflex microphones use interchangeable cartridges that allow you to choose the

polar pattern for different installations.

Omnidirectional Supercardioid Cardioid

R183 R184 R185

Cartridge Polar Patterns

Microphone Placement

For best low-frequency response

and rejection of background

noise, place the microphone on

a large, flat surface, such as a

floor, table, or lectern.

To reduce reverberance, avoid

reflective surfaces above or to

the side of the microphone, such

as beveled sides of pulpits or

overhanging shelves.

MX395/C

130° @ -3dB

MX395/BI

2 x 90° @ -3dB

MX395/O

360°

Permanent Installation

1. Remove grille.

2. Place housing in position and

mark location of screw holes

and bottom cable exit hole.

3. Drill starter hole for each

screw and a 1/2 in. bottom

exit hole for the mic cable.

4. Insert 4-pin mini-connector and

cable through cable hole.

5. Replace grille with screw.

Do not overtighten.

Do not attempt to detach the cable from

the microphone, as damage may result.

Preamp Gain

If necessary, the preamplifier gain can be reduced by 12 dB. Contact an authorized

Shure service center for information.

R6 and R4

R13 and R16

C10

C11

RFI Filtering

Important: Microphones must be used with the RK100PK and RK202PK

plate-mounted preamp to optimize RF immunity.

Specifications

All measurements taken with microphone mounted on a wooden surface (76 x 76 cm)

Cartridge Type

Electret Condenser

Frequency Response

50–17000 Hz

Polar Pattern

MX391/C Cardioid

MX391/S Supercardioid

MX391/O Omnidirectional

Output Impedance

180Ω

Output Configuration

Active Balanced

Sensitivity

@ 1 kHz, open circuit voltage

Cardioid –30 dBV/Pa (33.5 mV)

Supercardioid –28 dBV/Pa (38.5 mV)

Omnidirectional –22 dBV/Pa (81.4 mV)

1 Pa=94 dB SPL

Maximum SPL

1 kHz at 1% THD, 1 kΩ load

Cardioid 119 dB

Supercardioid 118 dB

Omnidirectional 111 dB

Equivalent Output Noise

A-weighted

Cardioid 23 dB SPL

Omnidirectional 15 dB SPL

Supercardioid 21 dB

Signal-to-Noise Ratio

Ref. 94 dB SPL at 1 kHz

Cardioid 71 dB

Omnidirectional 80 dB

Supercardioid 73 dB

Dynamic Range

1 kΩ load, @ 1 kHz

96 dB

Common Mode Rejection

45 dB, minimum

Preamplifier Output Clipping Level

at 1% THD

–6 dBV (0.5 V)

Polarity

Positive sound pressure on diaphragm produces positive voltage on pin 2 relative to pin 3 of

output XLR connector

Environmental Conditions

Operating Temperature –18–57°C (0–135°F)

Storage Temperature –29–74°C (–20–165°F)

Relative Humidity 0–95%

Power Requirements

11–52 V DC, 2.0 mA

Condenser Cartridge Impedance Converter

Red

Black

Shield

Microphone Wiring Diagram

Note: Yellowing of any plastic material can be caused from cigarette smoke, ultra

violet rays, and other chemical interactions. Once plastic has yellowed, there typically

is no cleaning method that will restore the whiteness.

Furnished Accessories

Carrying/Storage Bag 95A2313

RFI Resistant, Inline Preamp for all MX Models (Black) RK100PK

Allen wrench (No. 4) 80A67

Replacement Parts

Black or White Omnidirectional Cartridge for all MX-

(Microflex®) Models and WL183 R183B

Black or White Supercardioid Cartridge for all MX-

(Microflex®) and WL183, WL184 and WL185 Models R184B

Black or White Cardioid Cartridge for WL185 and all MX-

(Microflex®) Models R185B

RFI Resistant, Inline Preamp for all MX Models (Black) RK100PK

RFI Resistant, Inline Preamp for all MX Models (White) RK100PKW

Certifications

Meets essential requirements of all applicable European Directives.

Eligible for CE marking.

The CE Declaration of Conformity can be obtained from Shure Incorporated or any of

its European representatives. For contact information please visit www.shure.com

The CE Declaration of Conformity can be obtained from: www.shure.com/europe/

compliance

Authorized European representative:

Shure Europe GmbH

Headquarters Europe, Middle East & Africa

Department: EMEA Approval

Jakob-Dieffenbacher-Str. 12

75031 Eppingen, Germany

Phone: 49-7262-92 49 0

Fax: 49-7262-92 49 11 4

Email: [email protected]

cm4.158

(1.637 in.)

5.304 cm

(2.088 in.)

1.905 cm (.750 in.)

7.940 cm

(3.126 in.)

SIDE (3/4 SCALE) CÔTÉ (ÉCHELLE 3/4) SEITENANSICHT (MASSSTAB 3:4)

COSTADO (ESCALA: 3/4 DE TAMAÑO REAL) VISTA LATERALE (SCALA 3/4) BOTTOM (ACTUAL SIZE) DESSOUS

(GRANDEUR NATURE) UNTERSEITE

(ORIGINALGRÖSSE) LADO INFERIOR

(TAMAÑO REAL) VISTA DAL BASSO (AL VERO)

3.175 cm

(1.250 in.)

2.921 cm

(1.150 in.)

.5 in. Hole

R6 and R4

R13 and R16

C10

C11

GAIN SETTING

TABLE 4A •TABLEAU 4A

TABELLE 4A •TABLA 4A

TABELLA 4A

12 dB 0 dB

R6 10k0ohm

R4 10

R160ohm10M

R13DNP 301 ohm

赤

NERO

RED

SCHWARZ NEGRO

20 200001000 1000050 100

9876543 92 8765432

+10

–10

-20

+20

20 200001000 1000050 100

9876543 92 8765432

+10

–10

-20

+20

20 200001000 1000050 100

9876543 92 8765432

+10

–10

-20

+20

MX391/O

MX391/C

MX391/S

150°

120°

150°

120°

180°

30°

60°

90°

30°

60°

90°

–10 dB

–20 dB

–15 dB

–5 dB

150°

120°

150°

120°

180°

30°

60°

90°

30°

60°

90°

–10 dB

–20 dB

–15 dB

–5 dB

MX391/O

150°

120°

150°

120°

180°

30°

60°

90°

30°

60°

90°

–10 dB

–20 dB

–15 dB

–5 dB

150°

120°

150°

120°

180°

30°

60°

90°

30°

60°

90°

–10 dB

–20 dB

–15 dB

–5 dB

MX391/C

150°

120°

150°

120°

180°

30°

60°

90°

30°

60°

90°

–10 dB

–20 dB

–15 dB

–5 dB

150°

120°

150°

120°

180°

30°

60°

90°

30°

60°

90°

–10 dB

–20 dB

–15 dB

–5 dB

500 Hz

1000 Hz

250 Hz

6300 Hz

10000 Hz

2500 Hz

MX391/S

500 Hz

1000 Hz

250 Hz

6300 Hz

10000 Hz

2500 Hz

500 Hz

1000 Hz

250 Hz

6300 Hz

10000 Hz

2500 Hz

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