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A
LANSING
9864A
16" Duplex®
Loudspeaker System
PRIMARY SPECIFICATIONS
KEY FEATURES
★ High-Output Capability
★ Excellent Directivity Control
★ 550 Watts = 130 dB SPL
★ Enclosure Allows Refinishing
★ True Point Source
System Type:
Pressure sensitivity: (see note 1)
H.F.: 109 dB SPL
L.F.: 104 dB SPL
Frequency Response:
Power Handling:
H.F.d kHz to 10 kHz):
LF.(50 Hz to 4 kHz): 200 w, AES method.
Maximum Output: (see note 4)
H.F.:
L.F.:
Vented bass horn type, two-way
full-range loudspeaker system.
(1W, 1 kHz to 10 kHz. re: 20 |xPa.
(1W, 125 Hz to 1 kHz, re: 20 |xPa).
50 Hz to 15 kHz
(see Figure 2, note 2).
(see note 3)
75 w, AES method.
150 w, continuous program.
300 w, peak power.
400 w, continuous program.
800 w, peak power.
128 dB SPL, AES method.
131 dB SPL, continuous program.
134 dB SPL, peak power.
127 dB SPL, AES method.
130 dB SPL, continuous program.
133 dB SPL, peak power.
DESCRIPTION
The Altec Lansing 9864A is a two-way, factory
assembled, vented bass Duplex® horn system. This
compact system features high sensitivity, high out
put capability, point source alignment with excellent
directivity control down to 200 Hz. The coverage at
500 Hz is 70° horizontal by 50° vertical and the sys
tems nominal coverage is 60° horizontal by 40°
vertical. The bass reflex porting extends the low
frequency response to 50 Hz, or lower if multiple
units are used. This unique driver utilizes the low
frequency magnet structure to support both low and
high frequency voice coil assemblies. This physical
driver alignment creates a true point source device.
The 9864A "Duplex" driver combines the Altec
Lansing 515-8GHP 16 inch (40.6 cm) low frequency
driver and 299 1.4 inch (3.6 cm) high frequency
compression driver with a 60° by 40° constant direc
tivity horn for smooth directivity through the cross
over region. The system should be used with an
electronic crossover, and the recommended cross
over frequency is 1 kHz. The 9607A plug-in
equalization module can be used to provide equaliza
tion in Altec Lansing electronic crossovers. The
enclosure will also accept the standard Altec Lansing
passive crossover network. The enclosure is con
structed from 3/4-inch (1.9 cm) thick, thoroughly
braced 7-ply birch plywood lined with sound absor
bent glass wool. Threaded insert mounting points
are provided to conveniently attach the Altec Lansing
816VI-SK suspension kit. The system may be
hung as a single unit or as part of a cluster. The en
closure is covered in a new and unique wood
grained vinyl which can be painted or stained to
complement any interior. The enclosure is supplied
with a removable black metal grille.
The 9864A can be used individually or in arrays
to create compact, high output and directivity con
trolled systems for use in churches, auditoriums,
hotels and civic centers.
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in
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9864A Specifications (continued)
Crossover Frequency:
1 kHz recommended.
Impedance:
H.F.:
L.F.:
8.0 ohms minimum.
7.0 ohms minimum.
8.0 ohms nominal.
Components:
16-inch, high efficiency, duplex®
loudspeaker.
Input Terminals:
Large screw terminals.
Replacement L.F.: R9864A-LF.
Replacement H.F.: 25884.
Replacement Grille:
Enclosure:
Model RG9864.
Vented bass horn type, built of
%-inch (1.9 cm) birch plywood with
NOTES ON MEASUREMENT CONDITIONS
appropriate bracing, lined with glass
wool. Includes mounting points for
accessory 816VI-SK suspension kit.
Finish:
Architectural wood grain vinyl with
black metal grille.
Dimensions:
31.5 inch (80.0 cm) high.
25.3 inch (64.3 cm) wide.
25.5 inch (64.8 cm) deep.
Net Weight:
124.0 lbs (56.2 kg).
Shipping Weight: 132.0 lbs (59.9 kg).
Accessories:
Altec Lansing 816VI-SK suspension kit.
Altec Lansing continually strives to improve prod
ucts and performance. Therefore, specifications
are subject to change without notice.
1. Pink noise signal, one Watt calculated using EVZmin, 4.
3.16 meter-measurement distance referred to one meter.
2. On-axis, one Watt calculated using EVZmin, 3.16 metermeasurement distance referred to one meter, low frequen
cies corrected for anechoic chamber error. 5.
3. This system rating patterned after the AES method for indi
vidual driver, where the test signal is pink noise with a 6 dB
crest factor over the bandwidth of the system, with power
calculated using the EVZmin, for two hours.
This measurement made under the same conditions as Pres
sure Sensitivity, but at rated power, and takes into account
any power compression effects due to non-linearities in the
system.
Distortion components invalid above 10 kHz. The distortion
at any given frequency may be found by graphically taking
the difference between the fundamental and harmonic, and
adding the number of Decibels which the harmonic has been
raised on the graph and apply the formula:
% distortion = 100 X
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nr TTTT
TTTT
TTTI
160 Hz
400 Hz
2500 Hz
200 Hz
500 Hz
1250 Hz
3150 Hz
250 Hz
630 Hz
1600 Hz
4000 Hz
315 Hz
800 Hz
2000 Hz
5000 Hz
/
/
£ »
V
y
%
/
lUi _L
L
20 50 100 200 500 IK 2K SK 10K 20K
Figure 2 Frequency Response
1 1 IN I
i'\
/ \
» '
_1_L I1Ü _J_L nil
20 50 100 200 500 IK 2K SK 10K 20K
Figure 4 Magnitude of impedance
_LL im
1
FREQUENCY (Hr)
1 1 n il
/
FREQUENCY (Ht)
_L
1 1 1
OA
1 1 1
1 1
ILU l_L
TTTT
nr
iiU _L
Figure 3 Dispersion Angle
Figure 5 Q and Directivity Index
16000 Hz
20000 Hz
Figure 1 1/3-Octave Polar Response
10000 Hz
HORIZONTAL
VERTICAL
12500 Hz
Figure 6 Harmonic Distortion at 0.01 Rated Power Figure 7 Harmonic Distortion at 0.1 Rated Power
t
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ARCHITECT'S AND ENGINEER'S SPECIFICATIONS
The loudspeaker system shall be of the vented
bass horn type consisting of one 16 inch (40.6 cm)
high power Duplex® loudspeaker with a coaxially em
bedded 1.4-inch compression driver loaded with a 60°
by 40° constant directivity horn. The loudspeaker sys
tem shall meet the following performance criteria:
Power handing, 275 watts (200 LF -i- 75 HF) of pink
noise with 6 dB crest factor, band limited from 50 Hz
to 15 kHz. Frequency response, smooth and uniformly
usable from 50 Hz to 15 kHz. Pressure sensitivity,
109 dB SPL from 1 kHz to 10 kHz, and 104 dB SPL
from 125 Hz to 1 kHz, one watt at one meter on
A
LANSING
a MARK IV company
P.O. BOX 26105 • OKLAHOMA CITY, OK 73126-0105 • U.S.A.
Phone: 405/324-5311 or FAX: 405/324-8981
© 1994 ALTEC LANSING CORPORATION
axis. The enclosure shall be constructed of 3/4-inch
7-ply birch plywood and shall be heavily braced and
lined with sound absorbent glass wool. The finish of
the enclosure shall be an architectural wood grain vi
nyl that is paintable or stainable with a black metal
grille. The dimensions of the enclosure shall be 31.5
inches (80.0 cm) high by 25.3 inches (64.3cm) wide
by 25.5 inches (64.8 cm) deep. The loudspeaker
system shall weigh 124.0 lbs (56.2 kg).
The loudspeaker system shall be the Altec Lansing
9864A.
PRINTED IN U.S.A. 4/94
Revision 2
42-02-038858 42-07-038858
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