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120 VAC
User Manual
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QSC Audio 120 VAC User Manual

Amplifier Current Draw—120 VAC
Current draw is the amount of AC current an amplifier demands while it is operating. Measurements are provided for various loads at idle, 1/8 of average full power, 1/3 of average full power, and full power, with all channels driven simultaneously. The figures shown on this sheet are for 120 VAC usage; for 230- and 100-volt operation, see the companion sheets. For typical usage, use the idle and 1/8 power figures. Where an asterisk (*) appears, the data was not available at press time. The designations "na" and "nr" respectively mean "not applicable" to the particular amplifier model and "not rated" for the particular load impedance.
Idle 1/8 Power 1/3 Power Full Power
Current draw at idle or with very low signal level.
Model Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes
PL 3.4 0.9 6.4 10.8 16.5 11.5 20.5 32 24.9 42 69.1
PL 3.8X * *** *** ***
PL 4.0 1 11 15.2 21.2 18.8 30.3 40 35.8 57.6 83.2
PL 6.0 II 2.5 10.3 15.5 23.8 19.3 35.1 47.4 39.3 67.5 104.7
PLX 1202 0.9 3.5 5.4 8.6 5.1 8.7 12.9 8.4 13.9 22.2 PLX 1602 0.9 5.1 8 11.9 7.6 12.1 18.2 12.6 21.2 32.2 PLX 2402 0.8 5 7.7 11.5 8.3 13.2 19.8 15.9 26.7 41.1 PLX 3002 0.9 5.9 9.2 13.2 10.5 16.8 24.6 20.4 34.3 52.3 PLX 3402 0.9 7.6 11.6 16.6 13.1 20.3 30.4 25.1 40.6 58.6
CX 302 0.9 3.5 5.4 8.6 5.1 8.7 12.9 8.4 13.9 22.2 CX 502 0.9 5.1 8 11.9 7.6 12.1 18.2 12.6 21.2 32.2 CX 702 0.8 5 7.7 11.5 8.3 13.2 19.8 15.9 26.7 41.05 CX 902 0.9 5.9 9.2 13.2 10.5 16.8 24.6 20.4 34.3 52.3
CX 1102 0.9 7.6 11.6 16.6 13.1 20.3 30.4 25.1 40.6 58.6 CX 302V 1 5.6 8 12 CX 602V 0.9 8.7 8.7 13 13 20.5 20.5
CX 1202V 1 7.7 11.9 11.9 12.5 19.2 19.2 25.2 38.7 38.7
CX 254 0.7 5.8 9.2 14.3 8.8 14.2 21.7 14.8 24 38.2 CX 404 0.7 8.1 12.4 nr 12.2 19.3 nr 21.7 33.4 nr
CX 204V 0.8 na na na 8.3 na na na 12.7 na na na 20.1
CX 168 0.6 6.4 10 nr 9.9 15.1 nr 16.6 26 nr
CX 108V 0.6 na na na 6.4 na na na 10.2 na na na 15.6
ISA 280 0.3 2.6 4.1 6.2 3.8 6.2 9.7 6.7 11 16.5 ISA 450 0.4 3.5 5.9 9.1 5.4 9 14 9.7 16.2 25.4 ISA 750 0.5 4.5 7 10.3 8.3 13.3 20.5 16.1 26.5 40.7
ISA 1350 1.2 6.4 10.1 14.5 12.5 20.1 30.6 25.5 42.2 65.7
ISA 300T 0.3 2.6 4.1 6.2 5.5 3.8 6.2 9.7 8.4 6.7 11 16.5 12.9 ISA 500T 0.4 3.5 5.9 9.1 6.9 5.4 9 14 12.7 9.7 16.2 25.4 19.1 ISA 800T 0.5 4.5 7 10.3 8.5 8.3 13.3 20.5 16.5 16.1 26.5 40.7 31.7
DCA 1222 0.9 3.5 5.4 8.6 5.1 8.7 12.9 8.4 13.9 22.2 DCA 1622 0.9 5.1 8 11.9 7.6 12.1 18.2 12.6 21.2 32.2 DCA 2422 0.8 5 7.7 11.5 8.3 13.2 19.8 15.9 26.7 41.1 DCA 3022 0.9 5.9 9.2 13.2 10.5 16.8 24.6 20.4 34.3 52.3 DCA 3422 0.9 7.6 11.6 16.6 13.1 20.3 30.4 25.1 40.6 58.6 DCA 1824 0.7 5.8 9.2 14.3 8.8 14.2 21.7 14.8 24 38.2 DCA 1644 0.7 8.1 12.4 nr 12.2 19.3 nr 21.7 33.4 nr
RMX 850 0.4 2.8 4.4 6.3 4.1 6.6 9.2 7.1 11.3 16.5
RMX 1450 0.4 3.7 6 9.3 5.4 9.6 14.7 9.7 16 24.9
RMX 1850HD 1.1 3.9 6.1 8.7 6.9 11.2 16.6 12.6 20.7 32
Current draw at 1/8 of full power is measured with pink noise as a signal. It approximates operating with music or voice with light clipping and repesents the amplifier's typical "clean" maximum level, without audible clipping. Use these figures for typical maximum level operation.
8Ω 4Ω 2Ω 25V-70V-100V 8Ω 4Ω 2Ω 25V-70V-100V 8Ω 4Ω 2Ω 25V-70V-100V
Current draw at 1/3 of full power is measured with pink noise as a signal. It approximates operating with music or voice with very heavy clipping and a very compressed dynamic range.
Current draw at full power is measured with a 1 kHz sine wave. However, it does not represent any real-world operating condition.
RMX 2450 0.7 4 6.3 9.2 9.7 15.6 22.9 16.4 27 40.7
RMX 4050HD 1.2 6.4 10.1 14.5 12.5 20.1 30.6 25.5 42.2 65.7
RMX 5050 1.2 8.4 13.9 17.6 16.5 26.9 36.2 32.5 56.4 83.5
SRA 1222 * *** *** *** SRA 2422 * *** *** *** SRA 3622 * *** *** ***
Discontinued models
PL 1.0 0.7 3.3 5.2 7.9 5.4 7.9 11.7 8.2 13.3 20.7
PL 1.0HV 1 5.1 7.6 nr 7.3 11.5 nr 12.1 19.8 nr
PL 1.4 0.8 3.7 5.5 7.8 6.7 9.7 14.6 11.4 18.5 29.4
PL 1.5x 1.6 3.6 6.4 9.6 6.8 10.8 16.2 12 20.2 30.3
PL 1.6HVx 1.5 5.3 8.5 nr 9.6 15 nr 16.5 27.6 nr
PL 1.8 0.8 4.9 7.3 9.6 9.8 13.6 18.4 15.3 24.9 35.3
PL 2.0HV 2.4 7.2 10.3 nr 13 19.5 nr 24.4 38.9 nr
PL 2.4MB 0.8 5 6.9 11.4 9 12.7 21.2 17.3 26 42.9 PL 6.0PFC 2.1 10 16 20 19 31 43 41 72 93 PL 9.0PFC 2.1 10.5 16.5 22.5 20.8 35.1 51 46.9 86.5 116
CX4 0.4 2.3 3.5 4.9 3.4 5.2 7.4 5.7 9.2 13.2 CX6 0.6 3.3 4.8 7.2 4.9 7.4 11 7.7 12.5 18.8
CX12 0.8 4.5 6.1 8 8.4 12.4 16.5 14.7 23 33
CX4T 0.4 2.3 3.5 4.9 3.3 3.4 5.2 7.4 5 5.7 9.2 13.2 8.7 CX6T 0.6 3.3 4.8 7.2 4.5 4.9 7.4 11 6.7 7.7 12.5 18.8 11.2
CX12T 0.8 4.5 6.1 8 5.7 8.4 12.4 16.5 10.9 14.7 23 33 21
USA 400 0.4 2 3 4 2.5 4 5.4 4 7 10 USA 900 0.6 3.4 5.8 7.4 4 6.3 8.2 10 15 20
USA 1310 0.9 6 9 13.4 7.5 11.2 15.4 14 21 28
USA 370 0.4 2 3 4 2.5 4 5.4 4 7 10 USA 850 0.6 3.4 5.8 7.4 4 6.3 8.2 10 15 20
USA 1300 0.9 6 9 13.4 7.5 11.2 15.4 14 21 28
3200 0.4 1.5 2 * 2 3 * 6 8 12 3350 0.4 2.2 3.8 4.4 3 4.5 6.5 9 16 22 3500 1.1 3.3 5 7 4 7 9 11 18 24 3800 0.8 4 6 9 5.5 10 15 12 22 32
SA 185 0.4 2 3 4 2.5 4 5.4 4 7 10 SA 425 0.6 3.4 5.8 7.4 4 6.3 8.2 10 15 20 SA 650 0.9 6 9 13.4 7.5 11.2 15.4 14 21 28
1100 0.1 0.8 1.4 2 1 1.7 2.4 2 3 4 1200 0.4 2 3 4 2.5 4 5.4 4 7 10 1400 0.6 3.4 5.8 7.4 4 6.3 8.2 10 15 20 1700 0.9 6 9 13.4 7.5 11.2 15.4 14 21 28
MPS2300 0.5 2.5 3.2 nr 3.2 4.5 nr 6 7 nr
MX700 0.4 2.5 3.8 5.6 2.8 4.5 6.8 6 10 15 MX1500 0.4 2.2 3.8 4.4 4 7 9 11 18 24 MX2000 0.8 4 6 9 5.5 10 15 12 22 32
MX1000a 0.4 2.7 4.5 6 3.4 5.5 8.5 8 15 23 MX1500a 0.9 3.8 4.5 6 6 8 13 12 21 30 MX2000a 0.9 4.1 7 11 7 10.5 15.5 15 24 40 MX3000a 1 5.7 8.5 12 10.2 17 24 25 40 58
EX 800 0.4 2.9 4.5 6.5 4 5.8 8.5 7 11.5 17 EX 1250 0.4 3.5 5.2 7.5 4.5 6.5 9.3 10 15 22 EX 1600 0.5 4.5 7 10.5 7 10.5 15 14.5 22.5 30 EX 2500 1 5 7.5 11 8.6 15 22 19 31 41 EX 4000 1 5.7 8.5 12 10.2 17 24 25 40 58
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