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  9. Bogen SP58A User manual

Bogen SP58A User manual

Reflex Horn
Loudspeakers
Models SPT5A
and SP58A
• High intelligibility and efficiency
• Passive loudspeaker
• Ideal for both one-way and two-way applications
• 7.5 watts
• 25/70V or 8-ohm operation
• Variable-tap impedance selector on SPT5A
• All-purpose mounting bracket for precise positioning, both vertically and horizontally
• Weatherproof, all-metal construction
• Textured mocha enamel finish
The Bogen SPT5A and SP58A are compact, reflex horn-type loudspeakers, designed for one-way or two-way
sound and communications systems.Their wide frequency response assures full-range background music repro-
duction, making these loudspeakers an excellent choice for multi-purpose applications, indoor or outdoor, for
use in industrial plants, warehouses, schools, construction sites, transportation terminals, and recreational areas.
The SPT5A has a built-in, variable impedance selector switch for matching the speaker power requirements to
a 25V or 70V constant-voltage line.The SP58A has an 8-ohm impedance.
The loudspeakers measure 6" in diameter and 4" deep. Connections are made through a 12" connecting cable.
Specifications subject to change without notice.
© 2001Bogen Communications, Inc.
Part No. 54-7760-03R2 Printed in USA 0109
Description
Features
Technical Specifications
Power Rating (RMS): 7.5 watts continuous
Frequency Response: 250Hz to 14kHz
Impedance:
SPT5A — 25/70V
SP58A — 8 ohms
Sound Pressure Level: 105dB @ four feet on axis with 7.5 watt
input @ 1000Hz
Dispersion: 120º
Sensitivity as Microphone: -22dBm [Ref: 10 dynes/cm2]
Dimensions: 6" Dia. x 4" D
Weight:
SPT5A — 2 lbs.
SP58A — 1.25 lbs.
Finish: Textured mocha enamel
Impedance Selector Switch Settings: 25V @ 1, 0.62, 0.31watts
(SPT5A) 70V @ 7.5, 5, 2.5, 1.25, 0.65 watts
Sound Pressure Level in dB @ 1000Hz: Watts Feet on Axis
Input: 4 8 163264
7.5 — 105 99 93 87 81
5 — 103 97 9185 79
2.5 — 100 94 88 82 76
1.25 — 97 9185 79 73
.65 — 94 88 82 76 70
The loudspeaker shall be a Bogen Model ________
(specify SPT5A or SP58A), or approved equivalent,
reentrant type horn loudspeaker. The frequency
response shall be 250Hz to 14kHz. Rated power
output shall be 7.5 watts, RMS continuous.
Dispersion shall be 120º. Sound pressure level,
measured four feet on axis with 7.5-watt input @
1000Hz, shall be at least 105dB.
Use for SPT5A. The unit shall incorporate a five-
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 7.5, 5, 2.5, 1.25, or 0.65 watts, and at 25V to
1, 0.62, or 0.31watts.
Use for SP58A. The unit shall have an impedance
of 8 ohms.
The loudspeakers shall have a weatherproof, all-
metal housing. An all-purpose mounting bracket
shall provide precise positioning in the vertical and
horizontal planes. Bracket and loudspeaker shall be
finished in textured mocha enamel.The loudspeak-
ers shall measure 6" Dia. by 4" D. Weight shall
be ________ (insert 2 lbs. for SPT5A, 1.25 lbs.
for SP58A).
Architect
and Engineer
Specifications
50 Spring Street, Ramsey, NJ 07446, U.S.A.
201-934-8500 FAX: 201-934-9832; www.bogen.com

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