Altec Lansing 9444B - Manual (Page 10)

Operating and Service Instructions for tfie Altec Lansing 9444B Power Amplifier
8
SPECIFICATIONS Bridge mode, 8 or 16 Q: 39 dB
Conditions:
1. 0 dBu = 0.775 volts rms.
2. Dual mode ratings are for each channel.
3. Both channels operating at rated output power
unless noted.
4. 120 volt ac line input voltage maintained for all
tests unless noted.
Continuous Rated Output Power:
(20 Hz - 20 kHz at less than 0.1% THD)
Dual mode, 4 D:
300 watts/ch
Bridge mode, 8 SI: 600 watts
Dual mode, 8 SI: 200 watts/ch
Bridge mode, 16 D; 400 watts
Continuous Rated Output Power to Subwoofer:
(20 Hz - 1 kHz at less than 0.1% THD)
Dual mode, 4 O:
375 watts/ch
Bridge mode, 8 D: 750 watts
Dual mode, 8 Si: 225 watts/ch
Bridge mode, 16 fi: 450 watts
Maximum Midband Output Power:
(Ref. 1 kHz, 1% THD, @120 volts ac line voltage)
Dual mode, 4 SI:
>400 watts/ch
Bridge mode, 8 SI: >800 watts
Dual mode, 8 SI: >250 watts/ch
Bridge mode, 16 SI: >500 watts
(Ref. 1 kHz, 1% THD, @108 volts ac (10% sag))
Dual mode, 4 SI:
>325 watts/ch
Bridge mode, 8 il: >650 watts
Dual mode, 8 il: >200 watts/ch
Bridge mode, 16 fi: >400 watts
(Ref. 1 kHz, 1% THD, @100 volts ac (17% sag))
Dual mode, 4 il:
>230 watts/ch
Bridge mode, 8 il: >460 watts
Dued mode, 8 il: > 175 watts/ch
Bridge mode, 16 il: >350 watts
Headroom (Before clip): S1 dB
(Ref. 1 kHz, 1% THD, any mode)
Frequency Response: 10 Hz - 90 kHz
(Ref. 1 kHz, 1 watt output, +0/—3 dB)
Power Bandwidth: 20 Hz - 20 kHz
(Ref. 1 kHz, +0/—1 dBr where 0 dBr = rated output
power in any mode)
Voltage Gain:
(Ref. 1 kHz)
Dued mode, 4 il or 8 il;
Input Sensitivity for Rated Output Power:
(Ref. 1 kHz, ±0.15 dB)
Dual mode, 4 il:
Bridge mode, 8 il:
Dual mode, 8 il:
Bridge mode, 16 SI:
+0.1 dBu (0.78 V rms
+0.1 dBu (0.78 V nus'
+ 1.2 dBu (0.89 V rm;
+1.2 dBu (0.89 V rm
Maximum Input Level:
(Ref. 1 kHz)
Input Impedance;
(Ref. 1 kHz)
Balanced:
Unbalanced:
Polarity:
Phase Response:
(Any mode)
20 Hz:
20 kHz:
THD:
+20 dBu (7.75 V rm.s
15 kil
15 kD
Positive-going sign-
applied to pin 2 of X' :
or (+) of barrier strip
produces positive-gv ;
signal at (+) outp
terminal.
<+25°
>—15°
<0.1% (lyp. <0.01%.
(Any mode, 30 kHz measurement bandwidth)
IMD (SMPTE 4:1); <0.05% (Typ. <0.01%)
(Any mode)
TIM (DIM 100): <0.05%
(Any mode)
Rise Time: <6 psec
(Any mode, 10% to 90%)
Slew Rate:
Dual mode, 4 or 8 il: >30 V/psec
Bridge mode, 8 or 16 il; >60 V/psec
Damping Factor;
(Dual mode, 8 D)
20 Hz - 1 kHz:
20 kHz: >200
>75
33 dB
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, 8 f ‘
ALTEC LANSING^ CORPORATION • o Mark IV Company