1209A Voice of the Theatre (Rev. 2)


Main Details
Maker Altec Brand Altec Lansing Corporation Company LTV Ling Altec, Inc. Company Ling-Temco-Vought, Inc Company Voice of the Theatre Series
Form Factor Floorstanding
Signal Path Analog Hardware
Made In United States
Date Produced 197?
(H × W × D)
Weight 180lbs
Power Source 120VAC, 50/60Hz 17W 135W (Max)
Frequency Response 35Hz-20kHz
Notes Amplifier updated

Powered version of the 1208A using 771B biamplifier.
Additional Specifications
Treble 10.6"x25.3" Sectoral Horn Altec 808-8A, Altec 511B
Midrange/Bass 15" Paper Cone Altec 421A
Sensitivity (100Hz-10kHz) 103dB/W/4'
Crossover Frequency 500Hz
Crossover Slope 12dB/Oct
Dispersion (Horizontal) 90°
Dispersion (Vertical) 40°
Maximum Output (500Hz-3kHz, 0.5V, 4') 118dB
Amplifier Altec 771B
Output Power (Treble, 8Ω) 30W
Output Power (Bass, 8Ω) 60W
Input Sensitivity 0.5V
Input Impedance 15kΩ
THD (Treble) 0.5%
THD (Bass) 0.5%
SNR 80dB
Damping Factor 25
Enclosure Type Front Loaded Horn, Bass Reflex Altec 828A
Finish Gray
MSRP $798
Connector: 1/4" Phone Jack (6.35mm)


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