Altec

1224A (Rev. 2)

Amplifier, Power

Main Details
Maker Altec Brand Altec Lansing Brand Altec Corporation Company
Function
Channels/Tracks
  • 2 × Channel (Bi-Amp)
Form Factor Part
Signal Path Analog Hardware
Made In United States
Date Produced 1976
Dimensions
(H × W × D)
Weight 16lbs
Power Source 120VAC, 50/60Hz 15W (Idle), 150W (Max, 8Ω Load), 250W (Max, 4Ω Load)
Frequency Response 20Hz-20kHz ±1dB
Notes Revisions to circuitry. Addition of protective covers to output transistors.
Additional Specifications
Output Power (Treble, 8/4Ω) 30/40W
Output Power (Bass, 8/4Ω) 60/80W
Gain (Treble, 8/4Ω) 47/50dB With Altec 15335A transformer
Gain (Treble, 8/4Ω) 63/66dB With Altec 15095A transformer
Gain (Bass, 8/4Ω) 46/49dB With Altec 15335A transformer
Gain (Bass, 8/4Ω) 62/65dB With Altec 15095A transformer
Crossover Frequency 500Hz, 800Hz, 1.5kHz User selectable
Crossover Slope 12dB/Oct Second Order
Input Sensitivity 0.8V Direct Input or with Altec 15335A
Input Sensitivity 0.2V Direct Input or with Altec 15095A
Input Impedance 15kΩ
THD 0.5%
SNR 80dB
Minimum Load Impedance 2Ω
Finish Black
Connections
Input
Connector: XLR
Controls
Parameter: Gain
Control Type: Rotary Pot
Range: +3dB to -15dB
Parameter: High Frequency
Control Type: Rotary Pot
Range: +9dB to -20dB
Parameter: Crossover Frequency
Control Type: Rotary Switch
Range: 500Hz, 800Hz, 1.5kHz
Parameter: Power
Control Type: Rocker Switch
Range: On/Off

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