Altec Lansing 1233 - Manual (Page 2)

SPECIFICATIONS
Components:
Power Ratings:
Frequency Response:
Impedance:
Pressure Sensitivity:
421-8 LF 15" Musical
Instrument Loudspeaker
811B High-Frequency
Sectoral Horn
808-8B High Frequency
Driver with Tangerine™
1233 Dividing Network
Long-Term Broad-Band
Maximum Power: Up to 120
watts of band-limited pink
noise
50 Hz to 20 kHz
8 ohms
100.5 dB SPL measured at 4'
on axis with 1 watt input of
pink noise band-limited
from 500 Hz to 3 kHz. Equal
to E.I.A. rating of 53.5 dB
with 1 mW input (Ref.:
0.0002 dyne/cm^)
120 dB SPL measured at 4'
on axis with 100 watts input
(full power rating) of pink
noise from 500 Hz to 3 kHz
(Ref.: 0.0002 dyne/cm^)
Crossover Network:
Input Connections:
Enclosure Type:
Finish:
1200 Hz crossover, full-
range, dual LC network, 12
dB/octave slope
Two standard phone jacks,
wired in parallel
Bass reflex-type; heavily
braced, acoustically damped,
rigid enclosure of
3 / 4 "
particle board and plywood
Black leather-grained vinyl
with removable textured-
polyester cloth grille, metal
corner guards, recessed
handles
Dimensions:
Weight:
Accessories (included
with system):
33"
28"
19
"
(83.82 cm) Hx
(71.12 cm) Wx
(48.26 cm) D
112 lb. (508 kg)
50', 2-conductor cable with
standard phone plug on
each end
Voice Coil Diameter:
Voice Coil Material:
Magnetic Assembly Weight:
Magnet Material:
Flux Density:
Dimensions:
Weight:
421-8 LF 15" BASS DRIVER
3"
Copper
17'/2
lb (7.94 kg)
Ceramic
13,000 gauss
15" (38.1 cm) Diameter,
63/8" (76.2 cm) Depth
22 lb (10 kg)
808-8B COMPRESSION DRIVER*
1.75"
Aluminum
1-1/5 lb (0.54 kg)
Alnico V
15,250 gauss
4 У 2 " (11.4 cm) Diameter,
(9.4 cm) Depth
7 lb (3.2 kg)
811B SECTORAL HORN
Dimensions: 8Ya" (21.9 cm) H x 18%" (47.6 cm) W x 1 3 У 2 " (34.3 cm) D
Weight: 9 lb (4.08 kg)
»Contains patented TangerineTt^ radial phase plug, only from Altec.
ARCHITECT AND ENGINEER SPECIFICATIONS
The musical sound system shall be a two-way
loudspeaker system with a 15" low-frequency
loudspeaker, a high-frequency compression
driver loaded with a cast aluminum sectoral
horn, and a dividing network having a crossover
frequency of 1200 Hz, mounted in a bass reflex-
type enclosure.
Tbe system shall meet the following structural
and performance criteria. The enclosure shall be
constructed of heavily braced
3
/
4
" wood, shall
be acoustically damped, and shall be finished in
black vinyl with removable grille, metal corner
guards, and recessed handles. Power capacity:
up to 120 watts of continuous pink noise, band-
limited from 50 to 20,000 Hz. Frequency
response, 50 to 20,000 Hz. Crossover frequency,
1200 Hz, and crossover slope, 12 dB/octave.
Pressure sensitivity, 100.5 dB SPL measured on
axis with 1 watt input of pink noise band-limited
from 500 Hz to 3,000 Hz. Impedance, 8 ohms.
Dimensions, 33" H x 28" W x 19" D. Net weight,
112 lb.
The loudspeaker system shal
Model 1233.
be the ALTEC
SOUND PRODUCTS DIVISION
1515 SOUTH MANCHESTER AVENUE, ANAHEIM, CALIFORNIA 92803
LITHO IN U.S.A. 877 2.5M AL-1208