Bogen SPT15A - User Manual

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.
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.
• 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
(SP158A) 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 SPT15A
• 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 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
Reentrant Horn
Loudspeakers
Models SPT15A
and SP158A
Specifications subject to change without notice.
© 1995 Bogen Communications, Inc.
54-7612-05D 0904

Summary

Models SPT15 A and SP158 A

Description

Compact, high intelligibility, reentrant type loudspeakers for one-way or two-way sound systems.

Technical Specifications

Detailed performance metrics including power rating, frequency response, SPL, dispersion, and dimensions.

Architect and Engineer Specifications

Guidelines for system design, weatherproof construction, mounting, and wiring for architects and engineers.

Bogen SPT15A Specifications

General

Type	Ceiling Speaker
Power Handling	15 Watts
Impedance	8 Ohms
Power Rating	15W
Transformer Taps	15W, 7.5W