Shure 415, 420, 425, 430 User Guide

222

HARTREY

AREA

MODEL 415 MODEL 420 MODEL 425 MODEL 430

AVE., EVANSTON,

CODE312/328-9000 CABLE: SHUREMICRO

IL.

60204

U.S.A.

DATA

SHEET

MODELS 4-15, 420, 425,

430 "COMMANDO" SERIES

OMNI-DIRECTIONAL CONTROLLED MAGNETIC MICROPHONES

AND

GENERAL

The Commando Series Microphones are designed for voice reproduction and are ideal for tape recording, fixed or mobile public address systems, amateur communications, and similar uses. The microphones are pressure operated units using the balanced armature controlled magnetic principle. They feature high output, smooth response, extreme ruggedness and ability

to withstand severe moisture and temperature conditions.

Model 415 is a high-impedance microphone for connection

to amplifiers, mixers or tape recorders with high-impedance

microphone inputs.

The Models 420, 425 and 430 are dual-impedance micro-

phones with the option of low-impedance for connection to

microphone inputs rated at 25 to 200 ohms, or of high-impedance

for connection to high-impedance

Model 415

mounted with the furnished A25B swjvel adapter. The A25B has standard vertical through horizontal. The Model 415 has an attached (7 ft) single-conductor shielded cable.

Model 420

a small wearable microphone. It is furnished with a detachable

lavalier cord and clip assembly and a small-diameter, extremely

flexible, attached Model 420 allows the wearer full use of both hands used as a lavalier microphone or can be used as a handheld microphone removed from the lavalier assembly.

Model 425

neck mounting. It is furnished with a small-diameter attached

2.lm

also available with an attached gooseneck in a 6 in. length as Model 425-G6, in a 12 in. length as Model an 18 in. length as Model 425-G18.

Model 430

conductor shielded cable with an Amphenol MC2M connector on the microphone end. It has a press-to-talk locking or locking switch and can be used handheld or stand-mounted in the furnished

can be used as a handheld unit or can be stand-

%"-27 threads and is adjustable through 90" from

is designed specifically for applications requiring

6.lm (20 ft) two-conductor shielded cable.

has a %"-27 threaded base permitting easy goose-

ft) two-conductor shielded cable. This microphone is

is supplied with a detachable 4.6m (15 ft) two-

A25B swivel adapter.

microphone inputs.

2.lm

425-G12, and in

non-

ARCHITECTS' SPECIFICATIONS

The m~crophone shall be Shure Model (415, 420, 425, 430) or equivalent balanced armature controlled magnetic type microphone with a frequency response of 60 to 10,000 Hz. This

unit shall have an omnidirectional polar characteristic. The microphone shall be dual impedance (except Model 415-high

impedance only) with a rated impedance of 150 ohms for connection to microphone inputs rated at 25 to 200 ohms and High for connection to high-impedance microphone inputs. The

microphone output shall be:

Low

........................................................................

(0 dB = 1 milliwatt with 10 microbars)

High

........................................................................

(0 dB = 1 volt per microbar)

54 dB

55 dB

MODEL 415

adapter adjustable through

suitable for mounting on a stand having a

microphone shall be provided with a shielded cable. The overall dimensions shall be 173.0 (6-13/16 in.) in length and 44.5 mm (1% in.) in diameter.

MODEL 420

cord and clip assembly for use as a wearable microphone. The microphone shall be provided with a conductor shielded cable. The overall dimensions shall be

93.7

mm (3-11/16 in.) in length and 44.5 mm (1% in.) in diam-

eter.

MODEL 425

adapter having a

vided with a overall dimensions shall be 118 mm (4-21/32 in.) in length and

44.5

mm (1% in.) in diameter.

MODEL 430

On-Off switch and a swivel adapter adjustable through from vertical to horizontal and suitable for mounting on a stand having a with a detachable with an The overall dimensions shall be 177

44.5 mm (1% in.) in diameter.

The microphone shall be provided with a swivel

The microphone shall be provided with a lavalier

The microphone shall be provided with an

Ye"-27 thread. The microphone shall be pro-

2.lm (7 ft) two-conductor shielded cable. The

The microphone shall be provided with an

5/8

"-27 thread. The microphone shall be provided

Amphenol MC2M connector on the microphone end.

4.6m (15 ft) two-conductor shielded cable

90" from vertical to horizontal and

2.lm (7 ft) single-conductor

=/e"-27 thread. The

6.lm (20 ft) two-

90"

mm (7 in.) in length and

IMPEDANCE SELECTION

The dual-impedance Models 420, 425, and 430 are shipped connected for high-impedance operation. To change Models 420 and 425 to low impedance:

1. Remove the three Phillips Head screws holding the bottom cap or adapter to the microphone.

2. Gently pull down the cap or adapter.

3. Reach in with longnose pliers or tweezers and remove the pin jack (WHITE lead) from the terminal marked "H". (See Figure marked

4. Reassemble bottom cap or adapter to microphone, making

sure that the cable strain relief is well seated in the bottom cap and that the screws are tightened securely.

To change Model 430 to low impedance:

1. Remove the two Phillips Head screws located below the

nameplate and a third of the way around from the switch.

2. Loosen the screw between the switch and the nameplate

just enough to pull off the top part of the microphone. This screw should remain attached to the switch bracket

inside the chrome base of the microphone.

3. Reach in with pin jack (RED lead) from the terminal marked

Figure

4. Reassemble the bottom chrome base to the upper part of the microphone. Position switch bracket so that top part of microphone slides easily into chrome base. Tighten

all screws securely.

A,) Install this pin jack on terminal pin

"L".

longnose pliers or tweezers and remove the

A,) Install this pin jack on terminal pin marked "L".

"H".

(See

1967.

Shure Brothers

Inc.

(OVER)

Printed

U.S.A

CARTRIDGE CARTRIDGE CARTRIDGE

MODEL

415

MODELS MODEL 430

420

425

CABLE

PLUG

4SSEMBLY

INTERNAL CONNECTIONS

FIGURE A

CONNECTIONS

Model

415

"hot" cable conductor for connection to high-impedance inputs;

the shield is connected to the chassis or amplifier ground. Models

line low-impedance connections, the BLACK and WHITE leads

are the "hot" conductors; the shield is connected to the chassis

or amplifier ground. For unbalanced low-impedance or high-

impedance connections, the WHITE lead is the hot" conductor;

high impedance only: The WHITE lead is the

420, 425,

and

430

dual impedance: For balanced-

the BLACK lead and shield are connected to the chassis or

amplifier ground.

The low-impedance connection is recommended where long cable lengths are required or under conditions of severe hum disturbance. The permissible cable length is practically unlimited since neither response nor level is appreciably affected. Shure Model A95 Series Line Matching Transformers are available for use in those cases where a low-impedance microphone line is desirable but the associated amplifier has a ance input. These transformers provide a proper impedance match between a 25 to 200 ohm microphone line and a high-

high-imped-

impedance input and are available with various input and output connectors.

SPECIFICATIONS

TY pe

Controlled Magnetic

Frequency Response

60 to 10,000 Hz (See Figure B)

Finish

Models

415-425-430-Non-reflecting

gray and chrome

Model 420-Non-reflecting gray

Cable

415-2.1m

Model Model

shielded

420-6.lm (20 ft) non-detachable two-conductor

ft) non-detachable single-conductor

shielded

Model

425-2.lm

ft) non-detachable two-conductor

shielded

Model

430-4.6m (15 ft) two-conductor shielded with Am-

phenol Type

MC2M connector on microphone end

Switch

Models 415-420-425-None. Model 430-Press-to-talk switch

-normally closed

Dimensions

See Figure C

MODEL 430 MODEL 415

MODEL 425 MODEL 420

OVERALL DIMENSIONS

FIGURE C

FREQUENCY RESPONSE

FIGURE

Impedance

Model 415

to high-impedance microphone inputs.

Models 420, 425, 430 is 150 ohms (200 ohms actual at microphone inputs rated at 25 to 200 ohms. HIGH: Micro-

Microphone impedance is high for connection

LOW: Microphone rating impedance

IkHz) for connection to

phone impedance is "High" for connection to high-impedance

inputs. Microphones wired for high impedance as supplied.

Output Level (at 1,000 Hz)

IMPEDANCE

High Low

Open Circuit Voltage*

Power Level

* *

........................................

......................

....

55 dB

1.78

mV .18 mV

75 dB

-54 dB

'0 dB = 1 volt per microbar

**O dB = 1 milliwatt with 10 microbars

Polar Pattern

Omnidirectional

Case

Model 415 and 430-Impact-resistant polystyrene and die casting. Model 420-Impact-resistant polystyrene. Model 425-Impact-resistant polystyrene and brass

Net Weight

Model 415-227 g

430-454 g (1 Ib)

Model

Ib) Models 420-425-1 13 g

(Y4

Ib)

(Yz

FURNISHED ACCESSORIES

Model 415-Model

A34L Lavalier Cord and clip assembly. Model 430-Switch

locking plate for keeping switch in On position, Model Swivel Adapter.

A25B Swivel Adapter.

Model 420-Model

A25B

OPTIONAL ACCESSORIES

S38B or S33B Desk Stand for Models 415 and 430;

Model

A34L Lavalier Assembly for Models 415 and 430; Model

Model

A95 Series Line Matching Transformers for Models 420, 425,

and 430. Model A45 Quick Disconnect Isolation Unit for Model 415 or 430 mounted on

A25B Swivel Adapter.

REPLACEMENT PARTS

Model R4M Controlled Magnetic Cartridge for Models 415, 420, and 430, Model R4A for Model 425, Model C57 Cable and Plug Assembly for Model 430; Model 908415 Switch Assembly for Model 430.

GUARANTEE

This Shure product is guaranteed

in normal use to be free from electrical and mechanical defects for a period of one year from the date of purchase. Please retain proof of purchase date. This guarantee includes all parts and labor.

SHIPPING INSTRUCTIONS

Carefully repack the unit and return it prepaid to the factory.

If outside the United States, return the unit to your dealer or

Authorized Shure Service Center for repair. The unit will be

returned to you prepaid.