Bogen SPT15A Manuel utilisateur

The Bogen SPT15A and SP158A are compact, high

intelligibility, reentrant type loudspeakers, designed

for one-way or two-way sound and communication

systems. Their sturdy, weatherproof, all-metal con-

struction is ideal for indoor and outdoor use in

industrial plants, warehouses, schools, construction

sites, transportation terminals, and recreational

areas.

The Model SPT15A has a built-in, rotary impedance

selector switch for matching the speaker power

requirements to a 25V or 70V constant-voltage line.

The model SP158A has an 8-ohm impedance only.

• High intelligibility and efficiency; ideal for both

one-way and talk back applications

• Weatherproof, all-metal construction

•15 watts; 25/70 volt (SPT15A) or 8-ohm

(SP158A) operation

• Tap settings for 70V: 15, 7.5, 3.8, 1.8, 0.9 watts;

for 25V: 15, 7.5, 1.8, 0.94, 0.46 watts

• Rotary tap impedance selector on SPT15A

• Tilt and swivel base for easy positioning

• Screw terminals make installation fast and easy

• All-purpose mounting bracket

• Self-aligning, field replaceable diaphragm

• Mocha enamel finish

• Limited lifetime warranty

• Mountable to I-beam flange using Bogen’s BC1

Beam Clamp (sold separately)

• Mountable to electrical box using Bogen’s

HSES10 mounting strap (sold separately)

• Terminal Cover (TCSPT1) allows connection of

conduit fittings to horn speakers (sold separately)

Features

Description

Reentrant Horn

Loudspeakers

Models SPT15A

and SP158A

Specifications subject to change without notice.

54-7612-05D 0904

Power Rating (RMS): 15 watts continuous, 20 watts equalized

Frequency Response: 275 Hz to 14 kHz

Impedance:

SPT15A — 25/70 volts

SP158A — 8 ohms

Sound Pressure Level: 121 dB @ four feet on axis with 15 watt input

@ 1000 Hz

Dispersion: 110º

Sensitivity as Microphone: -22 dBm [Ref: 10 dynes/cm2]

Dimensions: 9" Diameter x 9-1/4" D

Product Weight:

SPT15A — 4 lb.

SP158A — 3 lb.

Finish: Textured mocha enamel

Impedance Selector Switch Settings (SPT15A only): 25V @ 15, 7.5, 1.8, 0.94, 0.46 watts

70V @ 15, 7.5, 3.8, 1.8, 0.9 watts

Sound Pressure Level in dB @ 1000Hz: Watts Feet on Axis

Input: 4 8 163264

15121115109 103 97

7.5 118112106 100 94

3.8 115109 103 97 91

1.8 112106 100 94 88

0.9 109 103 97 9185

46 106 100 94 88 82

Technical

Specifications

The loudspeaker shall be a Bogen Model ____ (spec-

ify SPT15A or SP158A), or approved equal, reentrant

type horn loudspeaker.The frequency response shall

be 275 Hz to 14 kHz. Rated power output shall be

15 watts, RMS continuous. Dispersion shall be 110º.

Sound pressure level, measured four feet on axis with

15 watt input @ 1000 Hz, shall be at least 121 dB.

Use for SPT15A. The unit shall incorporate a

seven-position weather-sealed switch, to allow

matching the loudspeaker to a 25V or 70V constant-

voltage line. Power handling capacity shall be

adjustable at 70V to 0.9, 1.8, 3.8, 7.5, or 15 watts, and

at 25V to 0.46, 0.94, 1.8, 7.5, or 15 watts.

Use for SP158A. The unit shall have an impedance

of 8 ohms.

The loudspeaker shall be of weatherproof, all-metal

construction, with driver enclosed within a weather-

proof housing. The loudspeaker shall include a self-

aligning, field-replaceable diaphragm.

Screw terminals shall be provided for connection to

the audio line. A plastic cover shall be provided to

protect the connectors and impedance selector

switch, and provide strain relief for the audio line.

An all-purpose mounting bracket shall provide pre-

cise positioning in the vertical and horizontal planes

with a single adjustment. The bracket shall include

banding slots to permit mounting the loudspeaker on

beams or pillars. Bracket and loudspeaker shall be fin-

ished in textured mocha enamel. The unit shall mea-

sure 9" diameter by 9-1/4" D. Product weight shall be

________ (insert 4 lb. for SPT15A, 3 lb. for SP158A).

Architect

and Engineer

Specifications

50 Spring Street, Ramsey, NJ 07446, U.S.A.

Tel. 201-934-8500; FAX: 201-934-9832; www.bogen.com

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