Bogen SP158A Prospecto

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The Bogen SPT
15A 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 SPT
15A has a built-in, rotary impedance
selector switch for matching the speaker power
requirements to a 25V or 70V constant-voltage line.
The model SP
158A 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
(SP
158A) 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 SPT
15A
• 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 BC
1
Beam Clamp (sold separately)
• Mountable to electrical box using Bogen’s
HSES
10 mounting strap (sold separately)
• Terminal Cover (TCSPT
1) allows connection of
conduit fittings to horn speakers (sold separately)
Features
Description
Reentrant Horn
Loudspeakers
Models SPT
15A
and SP
158A 
Specifications subject to change without notice.
© 
1995 Bogen Communications, Inc.
54-76
12-05D  0904