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Altec 2280A Incremental Power System Amplifier

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Altec 2280A Amp page 2

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SPECIFICATIONS FOR THE 2280A INCREMENTAL POWER SYSTEM


Power Output: 624W maximum at 70 volts (78W per Model 2271 70V Power Amplifier Module)
Power Output at Clip: 110W (1 module at 1 kHz) 720W (8 modules at 1 kHz) 600W (8 modules at 1 kHz with 90% line voltage)
Power Bandwidth
1 Module: -3 dB, 20 Hz to 20 kHz
8 Modules: -3 dB, 20 Hz to 20 kHz
Frequency Response
Unbalanced: ±.25 dB, 20 Hz to 20 kHz
-3 dB at 50 kHz (nominal) Balanced (15335A): ±.25 dB, 20 Hz to 20 kHz
-3 dB at 50 kHz (nominal)
Signal to Noise: greater than 100 dB unweighted (20 kHz noise bandwidth) greater than 108 dB "A" weighted
Distortion: .01% or less at 20 Hz and 2 kHz .1% or less at 20 kHz
0.1% IM, from 0.01W to 78W per power amplifier module
0.05% THD, eight channels driven at 624W, 20 Hz to 15 kHz. .1% THD at 20 kHz
*Optional 15335A Input Transformer Module

Sensitivity: 0.775V rms for rated output
Stepped Attenuation: 1 dB steps to -63 dB, each channel
Input Impedance: 15,000n unbalanced
15,000,Q balanced*
Common Mode
Rejection Ratio: 85 dB at 60 Hz
Cross Talk: 70 dB at 1 kHz
DC Offset Less than 100 mV
Slew Rate: 15 Vlµs
Damping Factor: 57:1 at 100 Hz
Phase Shift: Typically -f-20° -45° 20 Hz to 20 kHz
AC Power: 100/120/200/220/240 Vac, 50/60 Hz 1200W at rated output 100W idle
Dimensions: 175/a" (44.8 cm) D x
19" (48.3 cm) W x
7" (17.8 cm) H
Weight: 70 lb. (31.7 kg) with 8 power
amplifier modules
Color: Black
Accessory: 15335A Input Transformer Module
Model 2273 Blank Card
2271 Power Amplifier Module
2283 System Test Module



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