Astatic AMC105-2 - User Manual

Description
The AMC105-2 is a dual zone omnidirectional microphone designed
especially for fixed or gooseneck mounting in quality sound installations. A
smooth, wide band frequency response with a slight intentional "presence"
boost at 2000 Hz gives a "natural", crisp, highly intelligible sound. Two
DPDT sealed micro switches, with color coded buttons for easy
identification, permits paging in two areas, and an all-call features obtained
by depressing both buttons simultaneously. The AMC105-2 is extremely
rugged and reliable, and will stand up under the most strenuous handling
conditions to provide years of dependable service.
The AMC105-2 is supplied with a 5/8-27 mounting thread, 2.1m (7ft.) of
rugged, synthetic jacketed four conductor, two shielded cable. Black
Cycolac cap, chrome plated screen and black Cycolac housing. A
removable set screw is used to secure the front cap to the microphone
housing and microphone to the gooseneck.
The AMC105-2 is available in three models.
AMC105-2 Low Impedance, wired normally open.
AMC105-2-13 AMC105-2 on a 330mm (13") gooseneck.
AMC105-2-19 AMC105-2 on a 483mm (19") gooseneck.
DUAL ZONE OMNIDIRECTIONAL
DYNAMIC MICROPHONE
ASTATIC Quality
All AMC105-2 microphones are audio tested and inspected prior to
shipment. Our absolute commitment to quality insures that ASTATIC
microphones remain the Best Value in today's competitive industry.
Operation and Maintenance
The ASTATIC AMC105-2 can be cleaned if the housing becomes soiled
by using a cloth dampened with isopropyl alcohol. Insure power is removed
prior to doing so.
User Techniques and Applications
The AMC105-2 microphone, because of its professional sound and rugged
construction, is an excellent choice for applications requiring dual zone
paging and fixed or gooseneck mounting. This would include fast food
outlets, supermarkets, restaurants, paging stations, factories, warehouses,
etc.
AMC105-2
Commercial Audio Products

Summary

Description

AMC105-2 Microphone Overview

The AMC105-2 is a dual zone omnidirectional microphone designed for quality sound installations.

Available AMC105-2 Models

Details the three available AMC105-2 models: standard, 13-inch, and 19-inch gooseneck versions.

ASTATIC Quality Assurance

Emphasizes audio testing and inspection prior to shipment to ensure high-quality products.

Operation and Maintenance Guide

Provides instructions for cleaning the microphone housing with isopropyl alcohol after power removal.

User Techniques and Applications

Recommends the microphone for dual zone paging in various commercial environments like restaurants.

Specifications

Generating Element and Polar Pattern

Specifies the microphone's Dynamic generating element and Omnidirectional polar pattern.

Frequency Response and Output Level

Details the frequency response from 50 Hz to 13 kHz and output level of -76 dB.

Cable and Switch Specifications

Describes the 2.1m cable and the DPDT sealed micro switches for dual zone control.

Physical Dimensions and Weight

Lists the microphone dimensions as 34.9mm diameter x 115.9mm length and a weight of 198.5 grams.

Phasing and Cable Connections

Explains phasing for positive pressure and wiring for line input and relay control.

Two-Year Limited Warranty Details

Outlines the warranty coverage for defects in material and workmanship for two years.

Astatic AMC105-2 Specifications

Audio Specifications

frequency response	50 Hz - 13 kHz
output level	-76 dB (0dB = 1 volt / microbar)
impedance	400 ohms

Cable and Connectivity

cable length	2.1m (7ft.)
cable type	four connector, two shielded
cable connections	Red and Black to balanced line input

Weight and Dimensions

diameter	34.9mm (1 3/8")
length	115.9mm (4 9/16")
weight	198.5 grams (7oz.)