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Altec 9442A & 9442A/SA Anniversary Series Power Amplifier

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Altec 9442A Amp page 2

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SPECIFICATIONS FOR THE 9442A AND 9442A/SA POWER AMPLIFIERS

 

Conditions:
1.0 dBu = 0.775 v rms.
2. Dual mode ratings are for each channel.
3. Both channels operating at rated output power unless noted.
4. 120 volt ac line voltage maintained throughout testing.
Continuous Rated Output Power:
(20 Hz - 20kHz at less than
0.1% THD, 30 kHz measurement bandwidth) Dual mode, 40: 150 watts/ch
Bridge mode, 80: 300 watts
Dual mode, 80: 100 watts/ch
Bridge mode, 160: 200 watts
Maximum Midband Output Power: (Ref. 1 kHz, 1% THD)
Dual mode, 40: 200 watts/ch
Bridge mode, 80: 400 watts
Dual mode, 80: 125 watts/ch
Bridge mode, 1652: 250 watts
Headroom: ?1 dB (Ref. 1 kHz, 1% THD, any mode)
Power Bandwidth: 10 Hz - 50 kHz
(Ref. 1 kHz, +0/-3 dBr where 0 dBr = rated output power in any mode)
Voltage Gain:
(Ref. 1 kHz)
Dual mode, 40 or 80: 30 dB
Bridge mode, 80 or 160: 36 dB
Input Sensitivity for Rated Output Power:
(Ref. 1 kHz)
Dual mode, 40: 0 dBu (0.775 v rms)
Bridge mode, 80: 0 dBu (0.775 v rms)
Dual mode, 80: +1.2 dBu (0.890 v rms)
Bridge mode, 160: +1.2 dBu (0.890 v rms)
Maximum Input Level: +20 dRu (7.775 v rms) (Ref. 1 kHz)
Input Impedance: (Ref. 1 kHz)
Balanced: 15ko
Unbalanced: 15kQ
(Non-inverting input)
Phase Response:
(any mode)
20 Hz: <+25°
20 kHz: >-25°
THD: <0.1 %
(any mode, 30 kHz measurement bandwidth) IMD (SMPTE 4:1): <0.1% (any mode)
TIM (DIM 100): <0.1% (any mode)
Rise Time: <5 psec (10% to 90%, any mode)
Slew Rate:
Dual mode, 4 or 80: >18 v/psec Bridge mode, 8 or 160: >36 v/psec
Damping Factor:
(Dual mode, 80)
20 Hz - 1 kHz: >200
20 kHz: >80
Crosstalk: >75 dBr
(Ref. 1 kHz, 0 dBr = rated output power into 8 ohms, single channel operating)
Noise: >100 dB
(Below rated output power, A-weighting filter, any mode, 50/60 Hz ac line frequency)
Amplifier Protection: Shorted outputs Excessive output voltage Over-temperature RF interference Excessive phase shitt
Load Protection: Startup/shutdown
transients
DC taults Subsonic signals Low ac line voltage
Cooling: Convection
Output Topology: True complementary symmetry
Output Type:
Dual mode: Unbalanced, each channel
Bridge mode: Balanced
Output Devices:
Total number: 8 devices (both
channels)
Pdmax rating: 150 watts
Vceo: 200 volts DC
Ic 15 amps DC
Tjmax: 150°C
Controls and Switches: Two input level controls
(9442A) or
two switched attenuators
(9442A/SA), rear Mode switch, rear Power switch, front
Switched Attenuator Step Sizes:
(9442A/SA only, from full clockwise position) Click Position
1_ 20: 1 dB steps (-20 dB
attenuation at 20)
20 - 25: 2 dB steps (-30 dB
attenuation at 25)
25 - 26: 3 dB steps (-33 dB
attenuation at 26)
26 - 27: 4 dB steps (-37 dB
attenuation at 27)
27 - 28: 4 dB steps (-41 dB
attenuation at 28)
28 - 29: 4 dB steps (-45 dB
attenuation at 29)
29 - 30: 5 dB steps (-50 dB
attenuation at 30)
30 - 31: OFF (-- at 31)
Front Panel Indicators: Power LED Clip LED (x2) Protect LED
Connections:
Input: 6 terminal barrier strip
Female XLR (x2)
Octal accessory socket (x2), powered with ±15 volts DC
Output: 4 terminal barrier strip
Power: 3 terminal IEC ac line receptacle
Power Requirements: 100, 120, 200, 220, or 240 vac, 50/60 Hz, 560 watts (at 120 vac)

 

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