ESC
9444B/SA

9444B/SA

BrandAltec Lansing, Altec
ManufacturerMark IV Industries, Inc.
SeriesAnniversary Series
FunctionAmplifier, Power
Produced1992
Form Factor19" Rackmount
Signal PathAnalog Hardware
Dimensions48.3 × 13.3 × 33 cm (W × H × D)
Weight34lbs (Net), 42lbs (Shipped)
Power120VAC, 50/60Hz 72W (Idle) 720W (1/8 Power) 1000W (UL) 1068W (1/3 Power) 1464W (Rated Output) 1680W (Max Midband)
Frequency Response10Hz-90kHz +0dB/-3dB (1W)
Power Output (0.1% THD, 20Hz-20kHz, 4/8Ω)300/200W
Power Output (0.1% THD, 20Hz-1kHz, 4/8Ω)375/225W
Power Output (Bridged, 0.1% THD, 20Hz-20kHz, 8/16Ω)600/400W
Power Output (Bridged, 0.1% THD, 20Hz-1kHz, 8/16Ω)750/450W
Power Output (1% THD, 1kHz, 120VAC Line, 4/8Ω)400/250W
Power Output (1% THD, 1kHz, 108VAC Line, 4/8Ω)325/200W
Power Output (1% THD, 1kHz, 100VAC Line, 4/8Ω)230/175W
Power Output (Bridged, 1% THD, 1kHz, 120VAC Line, 8/16Ω)800/500W
Power Output (Bridged, 1% THD, 1kHz, 108VAC Line, 8/16Ω)650/400W
Power Output (Bridged, 1% THD, 1kHz, 100VAC Line, 8/16Ω)460/350W
Headroom (1% THD, 1kHz)≥1dB
Power Bandwidth20Hz-20kHz
Voltage Gain (1kHz)33dB
Voltage Gain (1kHz, Bridged)39dB
Input Sensitivity (Dual Mode, 4Ω)0.78V
Input Sensitivity (Dual Mode, 4Ω)+0.1dBu
Input Sensitivity (Dual Mode, 8Ω)0.89V
Input Sensitivity (Dual Mode, 8Ω)+1.2dBu
Input Sensitivity (Bridged, 8Ω)0.78V
Input Sensitivity (Bridged, 8Ω)+0.1dBu
Input Sensitivity (Bridged, 16Ω)0.89V
Input Sensitivity (Bridged, 16Ω)+1.2dBu
Maximum Input Level7.75V
Maximum Input Level+20dBu
Input Impedance (Unbalanced)15kΩ
Input Impedance (Balanced)15kΩ
THD0.1%
IMD (SMPTE 4:1)0.05%
TIM (DIM 100)0.05%
Rise Time6µsec
Slew Rate (Dual Mode)30V/µsec
Slew Rate (Bridged)60V/µsec
Damping Factor (20Hz-1kHz)200
Damping Factor (20kHz)75
Crosstalk (1kHz)75dBr
SNR100dB
FinishBlack
Channels2 Channel
Notes9444B with the addition of two stepped attenuators on rear panel in place of level controls.