_-
I
DIRECTIONAL PERFORMANCE
The directional characteristics of the
were measured by running a set of polar
responses in University’s large anechoic
chamber. The test signal was
band-limited pseudo-random pink noise
centered at the
standard frequencies
indicated in Figure 1
Additional typical data
is provided in
Figure
2
which indicates
beamwidth versus frequency for an
FREQUENCY RESPONSE
Figure 3 shows the axial frequency response
of the
It
was measured at a
distance of
1
meter, using a swept sine
wave.
INSTALLATION
Mounting of the
is by way of two
holes spaced 5.688” on centers.
A cable entrance threaded for
I.P.S.
pipe or rigid conduit is provided in the bot-
tom side of its cork-neoprene gasketed
transformer housing.
LOW-FREQUENCY DRIVER PROTECTION
When frequencies below the low-frequency
cutoff for the horn assembly are fed to the
driver, excessive current may be drawn the
by driver. For protection
of driver, amplifier,
and transformer (if driver with built-in
transformer is used),
in series
with driver, or transformer primary are
recommended.
For drivers without transformers:
driver, 25
V 50 mf
150
V
dc or 150
V
non-polarized electrolytic,
or two 150
V
dc electrolytics of two times
required value in series, back to back, for
70-volt lines.
ARCHITECTS’ AND ENGINEERS’
SPECIFICATIONS
The loudspeaker shall be integral driver and
submergence-proof speaker with a phenolic
impregnated linen-base diaphragm and
rugged two-inch voice coil.
The axial frequency response will extend
from 800 to
5,000
Hz and the horn shall
exhibit
a
low-frequency cutoff of
600 Hz.
Sound pressure level will be 104
(1
M) with an 800
to
5,000
Hz pink
noise signal applied. Dispersion shall be
at 2
The
bell, reflector, and weatherproof
transformer housing shall be die-cast
aluminum and designed
so that reflector can
be removed for easy accessibility and clean-
ing of diaphragm.
assembly shall be protected by special anti-
fungicide treatment.
Transformer housing shall be provided for
installation of line-matching transformer not
to
exceed
5.8
cm (2.25 in.), by 5.8 cm (2.25
in.), by 7.0
(2.75 in.). Two
diameter holes shall be provided for moun-
ting purposes.
Dimensions shall be 25.4 cm (10.0 in.) high,
by 16.4 cm (6.4 in.) wide, by 11.3 cm (4.4
in.) deep. Net weight shall not exceed
4.0
(8.8 Ib). The loudspeaker shall be the
University Sound
WARRANTY (Limited)
-
University Sound
Speakers and Speaker Systems (excluding
active electronics) are guaranteed for five
years from date of original purchase against
malfunction due to defects in workmanship
and materials.
If
such malfunction occurs,
unit will be repaired or replaced (at our
option) without charge for materials or labor
if delivered prepaid to University Sound. Unit
will be returned prepaid. Warranty does not
extend
to
finish, appearance items, burned
coils, or malfunction due to abuse or opera-
tion under other than specified conditions,
including cone
coil damage resulting
from improperly designed enclosures, nor
does it extend to incidental or consequential
damages. Some states do not allow the
exclusion or limitation of incidental or
consequential damages,
so the above exclu-
sion may not apply
to
you. Repair by other
than University Sound will void this
guarantee. This warranty gives you specific
legal rights, and you may also have other
rights which vary from state to state.
Service and repair information for this
product: University Sound,
Phone
FAX
Applications and technical information for
University Sound products:
University Sound, Inc., Technical
Coordinator, Phone
6,
FAX 81
Specifications subject
to
change
without notice.
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