Atlas Sound SD-370A specifications Features, Applications, General Description

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COMPRESSION DRIVERS

SD-70

 

FOR ELECTRONIC SIREN LOUDSPEAKERS

SD-370A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FEATURES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• Choice of 58 or 100 Watt Power Handling for High Intelligibility and

 

 

 

 

 

 

 

 

 

Sound Penetration

 

 

 

 

 

 

Heavy-Duty Weatherproof Construction

 

 

 

 

 

 

Specifically-Designed for Electronic Siren and Signaling applications

 

 

 

 

 

• Accommodates Most Horns and Reflex Horns with Standard

 

 

 

 

 

138" – 18 Thread Pattern

 

 

 

 

 

 

APPLICATIONS

 

 

 

 

 

 

Depend on SD Series compression drivers for electronic siren and

 

 

 

 

 

signaling needs on emergency and law enforcement vehicles, as well

 

 

 

 

 

as for use in stationary and mobile public address systems. Models

 

 

 

 

 

SD-70 and the patented SD-370A (U.S. Patent #7,760,501) provide

 

 

 

 

 

maximum power conversion with low-amplifier output to fulfill high-

 

 

 

 

 

intelligibility and sound-penetration requirements. Model SD-70, rated

 

 

 

 

 

at 58 Watts RMS, is recommended for medium-power systems such

 

 

 

 

 

as commercial and industrial warning systems. Model SD-370A, rated

 

SD-70

 

 

 

 

 

 

at 100 Watts RMS, is recommended for high-power systems in public

 

 

 

 

 

 

 

 

 

 

safety, civil authority, military, or emergency medical applications.

 

 

 

 

 

Either unit can be used with most horns or reflex horns equipped with

 

 

 

 

 

the industry standard 138" – 18 thread pattern.

 

 

 

 

 

 

GENERAL DESCRIPTION

 

 

 

 

 

 

SD Series 58 and 100 Watt compression drivers are standard

 

 

 

 

 

components of the Atlas Sound electronic siren loudspeaker

 

 

 

 

 

assemblies. Weatherproof units are ideal for use in police, fire,

 

 

 

 

 

ambulance, and utility vehicles. Model SD-70 is recommended for

 

 

 

 

 

medium-powered systems; SD-370A for high-powered systems.

 

 

 

 

 

Drivers are equipped with a non-fatiguing, self-aligning sound chamber

 

 

 

 

 

assembly containing a 234" phenolic diaphragm with a nominal

 

 

 

 

 

impedance of 11 Ohms. Replacement head assembly, Model K-70GB

 

 

 

 

 

is available for field replacement of Model SD-70; Model K-370A for

 

 

 

 

 

SD-370A. Product series is suitable for use with matched amplifier

 

 

 

 

 

and control equipment in systems requiring AMECA (Automotive

 

 

 

 

 

Manufacturer Equipment Compliance Agency, Inc.) certification to

 

 

 

 

 

General Services Administration specifications (KKK-A-1822C). The

 

SD-370A

 

 

 

SD-370A is constructed using an ALNICO magnet.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SEVEN

 

 

 

 

 

 

SPECIFICATIONS

 

 

 

 

 

 

POWER

IMPEDANCE

PLANE WAVE

 

LOW FREQ. LIMIT

SOUND

 

 

 

 

MODEL

RATING

 

FREQ. RESPONSE

@ FULL POWER

LEVEL***

DIMENSIONS

WEIGHT

 

SD-70

58 Watts*

11 Ohms

100 - 2,900Hz

 

200Hz

115.8 (avg)

438" Dia. x 3916" H

5 lbs.

 

 

 

(nominal)

(±5dB)

 

 

80-2,900Hz (±5dB)

(111 x 90mm)

 

(2.3kg)

 

SD-370A

100 Watts**

11 Ohms

100 - 2,500Hz

 

200Hz

117 (avg)

458" Dia. x 3116" H

7.7 lbs.

 

 

 

(nominal)

(±5dB)

 

 

100-2,500Hz (±5dB)

(118 x 102mm)

 

3.5kg)

 

 

 

 

 

 

 

 

 

 

 

 

* 25V into 11 Ohms = 58 Watts

** 33V into 11 Ohms = 100 Watts

*** Measured on a plane wave tube at 1mW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifications subject to change without notice

 

 

 

 

 

 

1601 JACK MCKAY BLVD. / ENNIS, TEXAS 75119 U.S.A.

AtlasSound.com

 

 

 

TELEPHONE: (800) 876-3333

/

FAX (800) 765-3435

343

© 2006 Atlas Sound LP

Printed in U.S.A.

ATS002453 RevA 8/06

SL7-1546

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Contents Applications FeaturesGeneral Description Architect & Engineer Specifications
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SD-370A specifications

Atlas Sound, a recognized name in professional audio solutions, offers a range of high-performance products tailored for schools, universities, hospitals, and commercial environments. Among its most notable offerings are the K-370, HPG-370GA, and SD-370A models, each designed to deliver outstanding sound quality and reliability.

The Atlas Sound K-370 is a versatile mixer/amplifier that provides a robust solution for a variety of applications. It features a 70V/100V output with a total power output of 370 watts, making it ideal for medium to large installations. Its built-in digital signal processing ensures clear audio reproduction and allows for precise tuning of sound systems. The K-370 includes multiple audio input options, enabling seamless integration with existing setups. It is equipped with a user-friendly interface and comprehensive controls, allowing users to easily manage volume levels, equalization, and mixing.

Next in line is the HPG-370GA, a high-performance paging amplifier designed for critical communication applications. This model stands out due to its exceptional clarity and power efficiency. It offers a 370-watt output, specialized for public address and paging systems. The HPG-370GA utilizes advanced Class D technology, ensuring lower power consumption without sacrificing audio quality. Furthermore, it supports multiple input types, including microphone inputs with phantom power, making it versatile for various environments. Its compact design allows for easy installation in tight spaces, while its durable construction ensures reliable long-term use.

Lastly, the SD-370A is another gem in the Atlas Sound catalog. This versatile sound distribution amplifier is designed for schools, offices, and commercial venues needing consistent audio coverage. With an output capacity of 370 watts, the SD-370A effectively manages multiple speaker loads. Its robust protection circuitry safeguards both the amplifier and connected speakers from damage due to overloading or short circuits. Furthermore, it incorporates features such as priority paging and auxiliary input, enabling seamless integration into existing sound systems. The SD-370A is built with intuitive controls for easy operation, making it accessible for users of all levels.

In conclusion, the Atlas Sound K-370, HPG-370GA, and SD-370A exemplify the company's commitment to providing high-quality audio solutions that meet the demands of modern environments. With advanced technologies, user-friendly interfaces, and robust performance, these models cater to both commercial and institutional needs, ensuring superior sound quality and reliability.