Altec Lansing 9864A User Manual

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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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