Bogen SP158A Bedienungsanleitung

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. Screw terminals make installation fast and easy.

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.

Engineered to simplify installation (with a uniquely

designed all-purpose mounting bracket) and field

maintenance (with a self-aligning, field replaceable

diaphragm), use of Bogen horn-type loudspeakers

saves both time and money.

The speaker and mounting bracket are handsomely

finished in textured mocha enamel. It has a 9" diam-

eter and is 9-1/4" deep.

• High intelligibility and efficiency; ideal for both one-way and talk back applications

• Weatherproof, all-metal construction

• 15 watts; 25/70 volt or 8-ohm operation

• Variable-tap impedance selector on SPT15A

Features

Description

Reentrant Horn

Loudspeakers

Models SPT15A

and SP158A

Specifications subject to change without notice.

Part No. 54-7612-05C 0703

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

Frequency Response: 275Hz to 14kHz

Impedance:

SPT15A — 25/70 volts

SP158A — 8 ohms

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

@ 1000Hz

Dispersion: 110º

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

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

Shipping Weight:

SPT15A — 4-1/2 lb.

SP158A — 4 lb.

Finish: Textured mocha enamel

Impedance Selector Switch Settings: 25V @ 15, 7.5, 1.8, 0.94, 0.46 watts

(SPT15A) 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

15 — 121115109 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

.48 — 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 275Hz to 14kHz. 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 @ 1000Hz, shall be at least 121dB.

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 0.48, 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. Shipping weight shall be

________ (insert 4-1/2 lb. for SPT15A, 4 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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