Altec Lansing DE6412-8A SPEAKER SYSTEM, Dimensions

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ARCHITECTS & ENGINEERS SPECIFICATION
The loudspeaker system shall be a two-way multi-purpose
type consisting of a 12 inch / 300mm Duplex
® point-source
loudspeaker component featuring a 12” / 300mm low
frequency speaker combined in a single magnet structure
with a large format 1.4” exit throat high frequency
compression driver mated to a 60˚ x 40˚ Mantaray
™
high
frequency horn. The crossover network shall be a
dual-section, 12 dB/octave slope low pass and 12 dB/octave
slope high pass with an electro-acoustic crossover
frequency of 950 Hz, switchable for bi-amp operation. The
loudspeaker system shall have an operating bandwidth of
110 Hz - 15 kHz with a sensitivity of 102 dB when
measured at a distance of one meter. The power handling
capability shall be 400 W AES (1,600 W peak).
Nominal impedance shall be 8.0 ohms with a minimum
impedance of 6.6 ohms at 140 Hz. The loudspeaker shall
have nominal coverage angles of 60 degrees in the
horizontal plane and 40 degrees in the vertical plane.
The paintable cabinet shall be a Sealed Mid-Bass Horn,
constructed of 18 mm Birch 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 27.13 inches (689
mm) high by 24.13 inches (613 mm) wide by 26.13 inches
(664 mm) deep. The loudspeaker system shall weigh 114
pounds (51.8 kg). The loudspeaker system shall be the
Altec Lansing Professional model DE6412-8A.
20 50 100 200 500 1 k 2 k 5 k 10 k 20 k
Frequency (Hz)
60
70
80
90
100
110
dB
SPL
(ref:
20
Pa)
Frequency Response
20 50 100 200 500 1 k 2 k 5 k 10 k 20 k
Frequency (Hz)
30
40
60
80
100
140
180
300
360
Beamwidth
(Degrees
)
Beamwidth
Vertical
Horizontal
20 50 100 200 500 1 k 2 k 5 k 10 k 20 k
Frequency (Hz)
1
2
3
5
10
20
30
50
100
Z(
)
Impedance
20 50 100 200 500 1 k 2 k 5 k 10 k 20 k
Frequency (Hz)
1
10
100
Q & Directivity Index
Q
20
10
Di
0
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
40
50
60
70
80
90
100
110
120
dB
SPL
(ref:
20
Pa)
Harmonic Distortion : 1% Rated Power
3rd Harmonic
2nd Harmonic
20 50 100 200 500 1k 2k 5k 10k 20k
Frequency (Hz)
50
60
70
80
90
100
110
120
130
dB
SPL
(ref:
20
Pa)
Harmonic Distortion : 10% Rated Power
3rd Harmonic
2nd Harmonic