Page 1
FREQUENCY RESPONSE
1, 2
70 Hz - 16 kHz (±3 dB)
USABLE LOW FREQUENCY LIMIT (-10 dB)
1, 2
45 Hz
SENSITIVITY
3
97 dB SPL
POWER HANDLING
4
300 W continuous; 1,200 W peak
MAXIMUM OUTPUT (1 m)
5
122 dB SPL continuous; 128 dB SPL peak
COVERAGE ANGLES
6
90o (horizontal) x 90o (vertical)
DIRECTIVITY FACTOR, Q
6
11.11
DIRECTIVITY INDEX, Di
6
11.46 dB
TRANSDUCER COMPONENTS
LF: 1x 12 in. Woofer in a Vented Enclosure
HF: 1x 1.4 in. Exit Compression Driver
IMPEDANCE
7
Nominal: 8.0 Ω
Minimum: 6.1 Ω at 190 Hz
CROSSOVER FREQUENCY
Passive LF - HF: 1,500 Hz
HARMONIC DISTORTION
8
1% rated power
2nd Harmonic 0.38%
3rd Harmonic 0.48%
THD 0.81%
10% rated power
2nd Harmonic 1.14%
3rd Harmonic 0.78%
THD 1.57%
INPUT CONNECTIONS
1x 4 position barrier strip and 2x NL4
ENCLOSURE MATERIALS & FINISH
18 mm, 13 ply Poplar Plywood Finished with
Catalyzed Polyurethane
SUSPENSION SYSTEM
9
Working Load Limit (maximum weight applied to uppermost
mounting point): 250 lbs. (113.6 kg)
(12) 3/8 in.-16 Threaded Mounting Suspension Points (3 each
top & bottom and 2 each sides & back)
DIMENSIONS
Net
22.00 in. (H) x 18.75 in. (W) x 15.00 in. (D) x 7.25 in. (W rear)
559 mm (H) x 476 mm (W) x 381 mm (D) x 184 mm (W rear)
Shipping
25.5 in. (H) x 23 in. (W) x 20 in. (D)
648 mm (H) x 584 mm (W) x 508 mm (D)
WEIGHT
Net 55 lbs. (25.0 kg)
Shipping 60 lbs. (27.3 kg)
DX1012-8A
FEATURES - THE ALTEC LANSING DIFFERENCE
• Point-source single magnet structure Duplex®design
• Large Format HF Driver (1.4" exit, 2.8" diaphragm)
• 90˚ conical high frequency horn
• 12"/300 mm direct radiator low frequency speaker
• Passive crossover network with Neutrik Speak-On®and barrier strip
connectors
• 13-Ply Paintable Poplar Enclosure offered in Charcoal Gray or White
with contrasting cloth-covered metal grille
• Eyebolt Hanging Hardware included
• Neutral grille cloth included that can be dyed to match any décor
GENERAL PRODUCT DESCRIPTION
Houses of Worship and Auditoriums require speaker systems that can
accurately reproduce the human voice and not miss a beat when the task
is live or recorded high fidelity music. Standard two-way speaker systems
are adequate, but suffer from cancellations and interference from
adjacent HF and LF sources. Altec Lansing’s solution is a Duplex® single
magnet, point-source component that minimizes these cancellations
without sacrificing speech intelligibility or high fidelity, full-range music
reproduction.
The DX1012-8A uses a unique Duplex®ENGINE component featuring a
large format high frequency driver and a 12"/300 mm low frequency
speaker & voice coil mounted to the front of the same magnet structure.
This point-source design means that all of the acoustic energy is
generated in a 1.5" space. The high frequency driver is mated to a 90˚
conical high frequency horn, insuring smooth coverage across the rated
bandwidth.
A 13-ply poplar paintable cabinet has internal reinforced L-brackets
presenting multiple suspension options (horizontal and vertical
orientation). Three forged eyebolts are included with each speaker. The
model DX1012-8A-G is a charcoal gray painted cabinet with contrasting
light gray cloth covered metal grille.
The DX1012-8A-W is a white cabinet with contrasting beige cloth
covered metal grille.
Should you need to paint the cabinet to match the décor of the facility, a
piece of neutral grille cloth is included with each speaker. This grille cloth
can be dyed to match the speaker cabinet color, or to integrate the
frontal area of the cabinet into the architectural space.
Where extended low frequency performance is required in Auditorium
and House of Worship systems, the Altec Lansing Professional model
LF115-8A single 15" flyable subwoofer provides an excellent complement
to the DX1012-8A.
P ROFESSIONAl
1000 W. Wilshire Blvd., Suite 362 • Oklahoma City, Oklahoma 73116 • Phone: 1-405-848-3108 • Fax: 1-405-848-3217 • www.altecpro.com
Page 2
ARCHITECTS & ENGINEERS SPECIFICATION
The loudspeaker system shall be a two-way multi-purpose
type consisting of a 12 inch / 300mm Duplex® loudspeaker
component with a 1.4" exit throat compression driver and
conical horn. The crossover network shall be a dualsection, 12 dB/octave slope low pass and 12 dB/octave
slope high pass with an electro-acoustic crossover
frequency of 1,500 Hz. The loudspeaker system shall have
an operating bandwidth of 70 Hz - 16 kHz with a
sensitivity of 97 dB when measured at a distance of one
meter. The power handling capability shall be 300 W AES
(1,200 W peak). Nominal impedance shall be 8.0 ohms with
a minimum impedance of 6.1 ohms at 190 Hz. The
loudspeaker shall have nominal coverage angles of 90
degrees in the horizontal plane and 90 degrees in the
vertical plane. The unit shall be a Vented Enclosure,
constructed of 18 mm Poplar plywood painted grey or
white with a cloth covered metal grille. The cabinet shall
include integral suspension points. Forged shoulder
machinery eye bolts shall be included to facilitate the
suspension of the speaker system. The dimensions shall be
22.00 inches high by 18.75 inches wide by 15.00 inches
deep. The loudspeaker system shall weigh 55 pounds (25.0
kg). The loudspeaker system shall be the Altec Lansing
Professional model DX1012-8AG (charcoal grey) or
DX1012-8AW (white).
110
100
90
80
dB SPL (ref: 20 Pa)
70
60
20 50 100 200 500 1 k 2 k 5 k 10 k 20 k
100
50
30
20
10
Z( )
5
3
2
1
20 50 100 200 500 1 k 2 k 5 k 10 k 20 k
Frequency Response
Frequency (Hz)
Impedance
Frequency (Hz)
360
300
180
140
100
80
60
Beamwidth (Degrees)
40
30
20 50 100 200 500 1 k 2 k 5 k 10 k 20 k
100
Q
10
1
20 50 100 200 500 1 k 2 k 5 k 10 k 20 k
Horizontal
Vertical
Beamwidth
Frequency (Hz)
Q&Directivity Index
Frequency (Hz)
20
Di
10
0
110
100
90
80
70
60
dB SPL (ref: 20 Pa)
50
40
30
20 50 100 200 500 1k 2k 5k 10k 20k
Harmonic Distortion : 1% Rated Power
Frequency (Hz)
2nd Harmonic
3rd Harmonic
120
110
100
90
80
70
dB SPL (ref: 20 Pa)
60
50
40
20 50 100 200 500 1k 2k 5k 10k 20k
Harmonic Distortion : 10% Rated Power
Frequency (Hz)
2nd Harmonic
3rd Harmonic
Page 3
As we are continually striving to improve Altec Lansing products, specifications are subject to change without notice.
Please visit www.altecpro.com for the latest information on Altec Lansing Professional products.
ONE-THIRD OCTAVE POLAR RESPONSE CHARTS
6 dB / DIVISION
Horizontal
Vertical
o
30
o
60
o
90
o
120
o
150
o
30
o
60
o
90
o
120
o
150
180
180
o
0
o
o
0
o
330
210
330
210
o
o
300
o
270
o
240
200 Hz
o
250 Hz
315 Hz
o
o
300
o
270
o
240
1.60 kHz
o
2.00 kHz
2.50 kHz
90
120
o
0
120
o
30
o
60
o
o
o
150
o
30
o
60
o
o
150
180
180
o
0
o
o
0
o
330
210
330
210
o
o
300
o
270
o
240
400 Hz
o
500 Hz
630 Hz
o
o
300
o
270
o
240
3.15 kHz
o
4.00 kHz
5.00 kHz
90
120
90
120
o
30
o
60
o
o
o
150
o
30
o
60
o
o
o
150
180
180
o
0
o
o
0
o
330
210
330
210
o
o
300
o
270
o
240
800 Hz
o
1.00 kHz
1.25 kHz
o
o
300
o
270
o
240
6.30 kHz
o
8.00 kHz
10.0 kHz
o
150
o
80
o
210
o
150
o
80
o
210
120
240
120
240
270
270
o
90
o
o
90
o
60
300
60
300
o
o
30
o
0
o
330
800 Hz
o
1.00 kHz
1.25 kHz
o
o
30
o
0
o
330
6.30 kHz
o
8.00 kHz
10.0 kHz
o
o
o
o
270
270
o
o
90
o
60
300
60
300
o
o
30
o
0
o
330
200 Hz
o
250 Hz
315 Hz
o
o
30
o
0
o
330
1.60 kHz
o
2.00 kHz
2.50 kHz
150
o
0
210
150
0
210
o
120
o
o
o
240
o
120
o
o
o
o
240
o
90
270
270
o
90
o
o
90
o
60
300
60
300
o
o
30
o
0
o
330
400 Hz
o
500 Hz
630 Hz
o
o
30
o
0
o
330
3.15 kHz
o
4.00 kHz
5.00 kHz
150
80
210
150
80
210
o
120
o
o
o
o
240
o
120
o
o
o
o
240
Page 4
AP1470 R03
© 2004 Altec Lansing Professional
1000 W. Wilshire Blvd., Suite 362
Oklahoma City, Oklahoma 73116
Phone: 1-405-848-3108 • Fax: 1-405-848-3217
Web: www.altecpro.com • Email: proinfo@alteclansing.com
MOUNTING DIMENSIONS
SPECIFICATION NOTES
1 The frequency response of the loudspeaker system is measured at a distance of no less than 3 meters to obtain full range data. The level is
then corrected to be equivalent to a 2.83 V 1 m measurement. A near field measurement of the loudspeaker system is performed for
frequencies below 500 Hz. This data is then combined with the full range measurement to give an accurate composite frequency response
curve.
2 The limits of the frequency response are referenced to -3 dB of the systems rated sensitivity.
3 The sensitivity of the loudspeaker system is the log based average SPL taken over the intended bandwidth of operation for the system with a
2.83 V swept sine stimulus. The data is measured and level corrected in a manner consistent with note 1.
4 The power handling capacity of the loudspeaker system is tested using a full range form of AES Standard 2-1984. The test stimulus is band
limited (40 Hz – 16 kHz) pink noise with a 6 dB crest factor. The applied RMS voltage is determined using the minimum impedance of the
system. The amplifier used to drive the system has a minimum operating headroom of 6 dB referenced to the RMS voltage.
5 The maximum output level of the loudspeaker system is calculated based on the sensitivity and the power handling capabilities of the
system.
6 The coverage angles for the loudspeaker system are taken as the -6 dB points of the directivity response and averaged from 500 Hz – 16 kHz.
7 The minimum impedance of the loudspeaker system is taken over its intended band of operation.
8 The distortion measurements of the loudspeaker system are performed at a distance of 1 m with RMS input voltages corresponding to 1%
and 10% of rated system power handling calculated using minimum system impedance. The distortion percentages are log based averages
from 300 Hz – 3 kHz.
9 Before attempting to suspend the loudspeaker system, consult a certified structural engineer. This loudspeaker system can fall from improper
suspension, resulting in serious injury and property damage. Suspend this loudspeaker system using no less than two of its suspension points.
Maximum enclosure rigging angle is 45°. Use only the correct mating hardware, forged shoulder machinery eye bolt, Mil Spec MIL 51937-3. All
associated rigging is the responsibility of others.
VISIT WWW.ALTECPRO.COM FOR
• Authorized EASE®data on Altec Lansing Professional speakers.
• Specification sheets in .pdf format. Download page 1 of the specification sheet for your submittals.
• One paragraph A & E Specifications in .doc format.
15.244 [387.20]
18.661 [474.00]
7.622 [193.60]
1.708 [43.39]
6.756 [171.60]
1.708 [43.39]
15.118 [384.00]
8.465 [215.00]
1.709 [43.40]
1.709 [43.40]
7.736 [196.50]
21.921 [556.80]
1.709 [43.40]
SCALE 1.000
8.465 [215.00]
6.449 [163.80]
P ROFESSIONAl
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