Altec-lansing 938-8AE User Manual
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938-8AD/938-8AE
LOUDSPEAKER SYSTEM
DESCRIPTION
The Altec Lansing 938 multi-purpose loudspeaker
systems are both compact and versatile. They
were designed to be used as high level stage
monitors in portable sound reinforcement and
can also be used as a small, full range system in
churches or night clubs or for reinforcement
installation in any small to medium room.
The 938 may be placed at 90®, 50° or 30° angles
(referenced to floor-plane mounting surface). The
reversible grille permits a right-side-up orientation
regardless of the speaker's position. The 938 uses
an upgraded version of the Altec Lansing 604,
long recognized for uniform frequency response
and high efficiency, with low and high frequency
elements mounted coaxially to produce a single
point source of sound. New materials have been
used in the low and high frequency voice coils
which allow the 938 to handle large power amp
lifier outputs. The dividing network is designed
with 12 dB per octave slopes for a smooth and
gradual transition at crossover and has adjustable
attenuation at high frequencies.
The enclosure is constructed of Va" birch plywood
and is finished in a black texture surface poly
urethane paint with a black grille. The 938 also
features recessed carrying handles and durable
metal corner guards to protect the cabinet during
handling and set-up. In addition, convenient tee
nut mounting points are provided to aid in hanging
the system in a permanent installation.
When used as a monitor or a small main system,
the 938 will supply the high level quality sound
that is required for churches, hotels and other
installations.
Summary of Contents
Page 1 - LOUDSPEAKER SYSTEM
938-8AD/938-8AE LOUDSPEAKER SYSTEMDESCRIPTIONThe Altec Lansing 938 multi-purpose loudspeaker systems are both compact and versatile. They were
Page 2 - W phone jacks wired in
SPECIFICATIONSSystem Type:Pressure Sensitivity:Frequency Response: Power Handling:Maximum Long Term Output:Impedance:Distribution Pattern: Component
Page 3 - VERTICAL
Figure 7. One-third Octave Polar Response Charts (See Note 8)HORIZONTALVERTICAL
Page 4
Figure 8. Coverage AngleFigure 10. Florizontal Off-Axis Response ContoursFigure 11. Vertical Off-Axis Response ContoursDISTANCE (m]90009600 1020010800
Page 5 - Figure 14. Mounting Data
Figure 14. Mounting DataMOUNTING INFORMATION FOR FIXED INSTALLATIONThe loudspeaker system is supplied with Vi-20 threaded inserts which allow su
Page 6 - LANSIISIG
Figure 15. System DimensionsARCHITECT'S AND ENGINEER'S SPECIFICATIONSThe loudspeaker shall be of the two-way multipurpose type, consistin
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