Bogen SPT30A Manuel utilisateur

The Bogen SPT30A and SP308A are compact, high

intelligibility, reentrant type loudspeakers, designed for

one-way or two-way sound and communication sys-

tems. Their sturdy, weatherproof, all-metal construc-

tion is ideal for indoor and outdoor use in industrial

plants, warehouses, schools, construction sites, trans-

portation terminals, and recreational areas.

The Model SPT30A has a built-in, variable impedance

selector switch for matching the speaker power

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

The model SP308A has an 8-ohm impedance only.

• High intelligibility and efficiency; ideal for both

one-way and talk back applications

• Weatherproof, all-metal construction

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

• Tap settings for 70V: 30, 15, 7.5, 3.7, 1.8 watts;

for 25V: 15, 7.5, 3.7, 1.8 watts

• Rotary tap impedance selector on SPT30A

• Tilt and swivel base for easy positioning

• Screw terminals make installation fast and easy

• All-purpose mounting bracket

• Self-aligning, field replaceable diaphragm

• Textured 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

Specifications subject to change without notice.

54-7759-04D 0904

Reentrant Horn

Loudspeakers

Models SPT30A

and SP308A

Power Rating (RMS): 30 watts continuous, 40 watts equalized

Frequency Response: 225 Hz to 14 kHz

Impedance:

SPT30A — 25/70 volts

SP308A — 8 ohms

Sound Pressure Level: 125 dB @ four feet on axis with 30-watt

input @ 1000 Hz

Dispersion: 100º

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

Dimensions: 11" Diameter x 10-1/2" D

Product Weight:

SPT30A — 6 lb.

SP308A — 5 lb.

Finish: Textured mocha enamel

Impedance Selector Switch Settings (SPT30A only): 25V @ 15, 7.5, 3.7, 1.8 watts

70V @ 30, 15, 7.5, 3.7, 1.8 watts

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

Input: 4 8 163264

30 125 119113107 101

15122 116110104 98

7.5 119113107 10195

3.7 116110104 98 92

1.8 113107 10195 89

Technical

Specifications

The loudspeaker shall be a Bogen Model ____ (spec-

ify SPT30A or SP308A), or approved equivalent,

reentrant type horn loudspeaker. The frequency

response shall be 225 Hz to 14 kHz. Rated power

output shall be 30 watts, RMS continuous.

Dispersion shall be 100º. Sound pressure level, mea-

sured four feet on axis with 30 watt input @

1000 Hz, shall be at least 125 dB.

Use for SPT30A. 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 1.8, 3.7, 7.5, 15, or 30 watts, and

at 25V to 1.8, 3.7, 7.5, or 15 watts.

Use for SP308A. 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 11" in diameter by 10-1/2" D. Product weight

shall be ________ (insert 6 lb. for the SPT30A, 5 lb.

for the SP308A).

Architect

and Engineer

Specifications

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

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

Ce manuel convient aux modèles suivants

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