Atlas SD-370A Specyfikacje

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SD-70

SD-370A

POWER

IMPEDANCE

MODEL

RATING

SD-70

58 Watts*

11 Ohms

(nominal)

SD-370A

100 Watts**

11 Ohms

(nominal)

* 25V into 11 Ohms = 58 Watts

** 33V into 11 Ohms = 100 Watts

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

TELEPHONE: (800) 876-3333 / FAX (800) 765-3435

COMPRESSION DRIVERS

FOR ELECTRONIC SIREN LOUDSPEAKERS

SPECIFICATIONS

PLANE WAVE

FREQ. RESPONSE

100 - 2,900Hz

(±5dB)

100 - 2,500Hz

(±5dB)

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

Specifications subject to change without notice

Printed in U.S.A.

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

⁄

" – 18 Thread Pattern

APPLICATIONS

Depend on SD Series compression drivers for elec tron ic 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

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 1

⁄

" – 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 2

⁄

" 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 spec i fi ca tions (KKK-A-1822C). The

SD-370A is constructed using an ALNICO magnet.

LOW FREQ. LIMIT

SOUND

@ FULL POWER

LEVEL***

200Hz

115.8 (avg)

80-2,900Hz (±5dB)

(111 x 90mm)

200Hz

117 (avg)

100-2,500Hz (±5dB)

(118 x 102mm)

AtlasSound.com

ATS002453 RevA 8/06

SD-70

SD-370A

DIMENSIONS

WEIGHT

⁄

Dia. x 3

5 lbs.

1 6

(2.3kg)

⁄

Dia. x 3

7.7 lbs.

1 6

3.5kg)

SL7-1546

343