Altec Lansing 150B User Manual
150b "bi-acoustic" horn system
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SOUND PRODUCTS DIVISION
150B
"BI-ACOUSTIC" HORN SYSTEM
DESCRIPTION
The ALTEC 150B "Bi-Acoustic" Horn System is
a versatile, two-way speaker system housed in
a
weatherproof,
compact
frame.
It
provides
excellent reproduction of speech and music for
public address applications, indoors or out
doors. The 150B uses a highly efficient trans
ducer with two sound paths emanating from
both sides of the diaphragm. Lower frequencies
are directed through a long reflex air column
while frequencies above 1000 Hz are directed
through a straight sectoral horn. The sectoral
® Registered trademark of Dow Corning Corp.
horn can be positioned in either a horizontal or
vertical plane. The housing is heavy, double-
reinforced Fiberglas® which eliminates struc
tural resonance. A 6-foot, heavy-duty lead passes
through a rainproof cable strain relief at the rear
of the horn to provide input connections. Use
of an ALTEC matching transformer (mounted in
the
ALTEC
21256
Weatherproof
Transformer
Housing) adapts the horn system for 70V line
operation. A mounting bale is supplied with
each unit to ease installation.