Bogen SP308A 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. Screw ter-

minals make installation fast and easy.

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.

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.

Speaker and mounting bracket are handsomely fin-

ished in textured mocha enamel. Diameter is 11 " with

a depth of 10-1/2". A beam clamp is also available

(BC1), as an option.

• 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

• Rotary tap impedance selector on SPT30A

• Beam clamp available (BC1)

Features

Description

Specifications subject to change without notice.

Part No. 54-7759-04C 0703

Reentrant Horn

Loudspeakers

Models SPT30A

and SP308A

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

Frequency Response: 225Hz to 14kHz

Impedance:

SPT30A — 25/70 volts

SP308A — 8 ohms

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

input @ 1000Hz

Dispersion: 100º

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

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

Shipping Weight:

SPT30A — 6 lb.

SP308A — 6 lb.

Finish: Textured mocha enamel

Impedance Selector Switch Settings: 25V @ 15, 7.5, 3.7, 1.8 watts

(SPT30A) 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 11911 3107 101

15 — 122 11611 0104 98

7.5 — 11911 3107 10195

3.7 — 11611 0104 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 225Hz to 14kHz. Rated power out-

put shall be 30 watts, RMS continuous. Dispersion

shall be 100º. Sound pressure level, measured four

feet on axis with 30 watt input @ 1000Hz, shall be

at least 125dB.

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. Shipping weight

shall be 6 lb.

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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