Shure AMS4000,AMS8000 Operating Instructions Manual

SHURE AUTOMATIC MICROPHONE SYSTEM

222

HARTREY AVENUE

SMUi;UEB

EVANSTON. lLLlNols

60202-3896

U.6.A

THE

SOUND

OF

THE

PROCESS-0

\VORlAWOE

MICROPHONES

AND

ELECTRONIC

COMPONENTS

OPERATING INSTRUCTIONS

DATA

SHEET

AMS4000 AND AMS8000

The Shure Automatic Microphone System consists of the
AMS8000 [or AMS4000J Mixer used with Shure AMS
Microphones. This system's excellent performance, ver­satility, and ease of use make it an ideal choice for multiple­microphone public-address and recording systems such as
used in conference rooms, legislatures, churches, court­rooms, broadcast studios, teleconferences, and panel
discussions.

The Shure Automatic Microphone System solves many
problems associated with multiple-microphone installations,
such as

boomy or muddy sound, insufficient sound level

because of feedback [howling), and operator errors.

It

does
this by turning on only those microphones in use, thus keep­ing the number of "on" microphones to a minimum. When a
person speaks in front of his microphone [within

60° of each

side of the front), the microphone turns on. Sounds origina-

ting at the sides or rear of the microphone will not turn it on.
In addition, the system automatically reduces its volume as
the number of "on" microphones increases, thereby
preventing feedback.

The Shure AMS also solves problems encountered with
other automatic mixers such as complicated setup adjust­ments, unreliable turn-an, and choppy sound. The micro­phones turn on smoothly and dependably, free of pops or
clicks, and virtually independent of talker loudness or
distance.

You'll find the Shure Automatic Microphone System simple
to install and operate, requiring little more adjustment than
an ordinary PA system. However, the system can also per­form a variety of sophisticated functions. Model

AMS8000
has eight microphone inputs; Model AMS4000 has four
microphone inputs.

b

IMPORTANT

Shure AMS4000 and AMS8000 Mixers are designed for use only with Shure AMS Condenser Microphones. Con­ventional condenser or other microphones will not operate properly with the

AMS4000 and AMS8000.

Copyright 1991, Shure Brothers

Inc

27A8272

[KJ)

Printed in U.S.A.

U.S. Patent 4,489,442; other patents pending

BASIC SETUP:

THE AMS BACK PANEL

I

PLAYER

I

The following instructions are for typical applications, installations and operation. Refer to the
Installers Manual for further information.

TYPICAL CONNECTIONS

Ll

NE

IN

WHAT TO

DO

HOW TO DO IT

POWER
AMPL

1.

Connect the power cord.

1

. Make sure the front panel power switch is off. The unit is

factory-wired for operation at 120

Vac, 50160

Hz.

LINE

2. Connect the AMS microphones.

IN AMS MIXER

2. Use only Shure AMS Microphones. When extension
cables are needed, use conventional

2conductor shielded

microphone cables.

OUT

AUX

3. Set the Hold Time switch.

3.

Use the 0.5-second position for most applications.

4.

Connect the LinelMic or Aux Output to the

PA

amplifier,

4.

Use the Mixer Aux Output for connecting to phone or

tape recorder, or other system.

phono jack aux or line inputs. Use the

LineIMic Output for
connecting to 3-pin professional balanced inputs; set the
MicILine switch as required.

OUT

5.

Set the Off-Attenuation switch.

5. Use the

-1

5

position for most applications.

REAR

PANEL

AUX

-

TAPE

I

TAPE

1

IN

RECORDER