Altec

A-287W

Amplifier, Power

Main Details
Maker Altec Brand Altec Lansing Brand Altec Lansing Corporation Company
Function
Additional Model ID A-287-W
Channels/Tracks
  • 1 × Channel
Form Factor 19" Rackmount
Signal Path Analog Hardware
Made In United States
Date Produced 1947-195?
Dimensions
(H × W × D)
Weight 141lbs
Power Source 105/117/130VAC, 50/60Hz 700W
Frequency Response 100Hz-10kHz ±1dB
Notes High power (Class B) version of A-287F.
Additional Specifications
Power Output 250W Requires 15W input from Altec A-127 series amplifier. May be paralleled with a second unit for 500W.
Gain 12dB
Topology Class B
THD (250W) 5%
SNR 68dB
Noise Level (0.001W) -20dB
Input Impedance 3kΩ Optional: 10Ω or 20Ω
Load Impedance 2.25Ω to 20Ω Multiple Taps
Output Tube 805
Tube Complement 805 (x2), 866A (x2)
Finish Blue Gray
MSRP (1947) $822 MSRP (1950): $913.33

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