Altec Lansing 1209B - Manual (Page 2)

ALTEC1209B
Type:
Power Output —
Bass Amplifier:
Treble Amplifier:
Power Requirements:
Input Sensitivity (for
Rated Output with
Full Boost):
Pressure Sensitivity:
Acoustic Output at
Maximum Gain
Settings —
Direct Input (No
T ransformer):
High-Level Balanced-
Line Matched Input
(15335 Transformer)
High-Level Balanced-
Line Bridging Input
(15095A
Transformer):
Biamplified powered speak­
er system with wide-angle
coverage
60 watts
30 watts
120V, 50/60 Hz -
17W at zero signal
90W at SOW output
135W at 90W output
0.5V rms direct
0.5V rms with 15335 Line
Matching Transformer
(high-level balanced-line
matched input)
0.1V
rms with 15095A
Line Bridging Transformer
(high-level
balanced-line
bridging input)
103 dB SPL measured at
4' on axis with 1 watt in­
put of pink noise from
100 Hz to 10 kHz (Ref.:
0.0002 dyne/cm2). Equal
to El A rating of 56 dB
SPL measured at 30' on
axis with 1 milliwatt input.
118.0 dB SPL measured at
4' on axis with 0.5V rms
input of pink noise from
500 Hz to 3000 Hz (Ref.:
0.0002 dyne/cm2)
118.0 dB SPL measured at
4' on axis with 0.5V rms
input of pink noise from
500 Hz to 3000 Hz (Ref.:
0.0002 dyne/cm2)
118.0 dB SPL measured at
4' on axis with 0.1V rms
input of pink noise from
500 Hz to 3000 Hz (Ref.:
0.0002 dyne/cm2)
1209B SPECIFICATIONS
Input Impedance:
Frequency Response:
Crossover Frequency:
Input Connections:
Distribution Pattern:
Components:
Dimensions —
HF Horn Externally
Mounted:
HF Horn Internally
Moutned:
Finish:
Weight:
15.000 ohms direct
15.000
ohms with 15335
transformer
600 ohms with 15095A
transformer
35 Hz to 20 kHz, normal­
ized composite output (see
Figure 1)
500 Hz with 12 dB/octave
slope
2 standard %" diameter
phone jacks, paralleled
— or —
Barrier-type terminal board
for 600-ohm applications
(requires transformer acces­
sory module to be installed
in biamplifier)
90° horizontal x 40°
vertical
1 ALTEC 421A Low-Fre­
quency Musical Instru­
ment Loudspeaker
1 ALTEC 51 IB High-Fre­
quency Sectoral Horn
1 ALTEC 808-8A High-
Frequency Driver
1 ALTEC 771B Electronic
Crossover Biamplifier
1 ALTEC 828B Low-Fre­
quency Horn
1 ALTEC 50', 2-conductor
cable with standard %"
diameter phone plug on
each end
54%" H X 30" W X 24" D
(137.80 cm H X 76.20 cm
Wx 60.96 cm D)
42" H X 30" W X 24" D
(106.68 cm H X 76.20 cm
Wx 60.96 cmD)
Theatre gray enamel
180 pounds (81.50 kg)
%
Figure 1. Frequency Response Measured at 4' on Axis with 1 Watt Input