QSC Audio PL218 User Manual
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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.
Idl
Current draw
at idle or
with very
low signal
level.
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.
1/8 Power 1/3 Power Full Power
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. Bridged mono into 8
ohms is equivalent to 4 ohms per channel; into 4 ohms is equivalent to 2 ohms per channel.
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.
June 2007
Current draw at full power is measured with a 1 kHz sine
wave. However, it does not represent any real-world
operating condition.
Load per channel ->
Model Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes
PL218 0.8 4.9 7.7 11.9 7.3 11.6 18.4 12.1 20.5 33.0
PL224 0.8 5.0 7.7 11.5 8.3 13.2 19.8 15.9 26.7 41.1
PL230 0.9 5.9 9.2 13.2 10.5 16.8 24.6 20.4 34.3 52.3
PL236 1.0 7.8 12.1 16.8 13.7 21.4 30.2 25.8 42.4 60.0
PL325 0.8 5.2 8.5 12.6 8.6 14.3 22.0 17.0 28.3 45.3
PL340 1.0 7.5 11.8 19.1 13.3 21.1 31.6 25.9 43.5 69.0
PL380 2.4 8.7 12.2 17.8 16.8 26.1 40.0 40.0 69.0 109.0
PLX1104 0.7 3.5 7.5 nr 7.2 11.1 nr 12.0 20.1 nr
PLX1804 0.6 5.1 8.4 nr 10.1 14.3 nr 20.0 31.6 nr
PLX1802 0.9 5.2 8.1 12.9 7.7 12.3 19.7 12.7 21.4 33.2
PLX2502 0.8 5.0 7.5 11.2 8.2 12.7 18.9 15.5 24.9 37.1
PLX3102 0.9 5.7 8.8 13.8 10.0 15.7 26.9 19.7 32.0 52.0
PLX3602 1.0 7.0 10.9 18.0 12.0 18.8 30.7 24.2 39.2 59.0
CX302 0.9 3.5 5.4 8.6 na 5.1 8.7 12.9 na 8.4 13.9 22.2 na
CX502 0.9 5.1 8.0 11.9 na 7.6 12.1 18.2 na 12.6 21.2 32.2 na
CX702 0.8 5.0 7.7 11.5 na 8.3 13.2 19.8 na 15.9 26.7 41.1 na
CX902 0.9 5.9 9.2 13.2 na 10.5 16.8 24.6 na 20.4 34.3 52.3 na
CX1102 0.9 7.6 11.6 16.6 na 13.1 20.3 30.4 na 25.1 40.6 58.6 na
CX302V 1.0 nr nr nr 5.6 nr nr nr 8.0 nr nr nr 12.0
CX602V 0.9 8.7 nr nr 8.7 13.0 nr nr 13.0 20.5 nr nr 20.5
CX1202V 1.0 7.7 11.9 nr 11.9 12.5 19.2 nr 19.2 25.2 38.7 nr 38.7
CX254 0.7 5.8 9.2 14.3 na 8.8 14.2 21.7 na 14.8 24.0 38.2 na
CX404 0.7 8.1 12.4 nr na 12.2 19.3 nr na 21.7 33.4 nr na
CX204V 0.8 nr nr nr 8.3 nr nr nr 12.7 nr nr nr 20.1
CX168 0.6 6.4 10.0 nr na 9.9 15.1 nr na 16.5 26.0 nr na
CX108V 0.6 nr nr nr 6.4 nr nr nr 10.2 nr nr nr 15.6
8Ω 4Ω 2Ω 25V-70V-100V 8Ω 4Ω 2Ω 25V-70V-100V 8Ω 4Ω 2Ω 25V-70V-100V
Current draw—120 VAC Page 1 of 12
Idl
e
Current draw
at idle or
with very
low signal
level.
1/8 Power 1/3 Power Full Power
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.
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.
Load per channel ->
8Ω 4Ω 2Ω 25V-70V-100V 8Ω 4Ω 2Ω 25V-70V-100V 8Ω 4Ω 2Ω 25V-70V-100V
Model Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes
ISA280 0.3 2.6 4.1 6.2 na 3.8 6.2 9.7 na 6.7 11.0 16.5 na
ISA450 0.4 3.5 5.9 9.1 na 5.4 9.0 14.0 na 9.7 16.2 25.4 na
ISA750 0.5 4.5 7.0 10.3 na 8.3 13.3 20.5 na 16.1 26.5 40.7 na
ISA1350 1.3 6.2 9.9 14.0 * 12.1 19.4 29.7 * 25.3 41.7 64.6 *
ISA300Ti 0.3 2.6 4.1 6.2 5.5 3.8 6.2 9.7 8.4 6.7 11.0 16.5 12.9
ISA500Ti 0.4 3.5 5.9 9.1 6.9 5.4 9.0 14.0 12.7 9.7 16.2 25.4 19.1
ISA800Ti 0.5 4.5 7.0 10.3 8.5 8.3 13.3 20.5 16.5 16.1 26.5 40.7 31.7
DCA1222 0.9 3.5 5.4 8.6 5.1 8.7 12.9 8.4 13.9 22.2
DCA1622 0.9 5.1 8.0 11.9 7.6 12.1 18.2 12.6 21.2 32.2
DCA2422 0.8 5.0 7.7 11.5 8.3 13.2 19.8 15.9 26.7 41.1
DCA3022 0.9 5.9 9.2 13.2 10.5 16.8 24.6 20.4 34.3 52.3
DCA3422 0.9 7.6 11.6 16.6 13.1 20.3 30.4 25.1 40.6 58.6
DCA1824 0.7 5.8 9.2 14.3 8.8 14.2 21.7 14.8 24.0 38.2
DCA1644 0.7 8.1 12.4 nr 12.2 19.3 nr 21.7 33.4 nr
RMX850 0.4 2.8 4.4 6.2 4.1 6.6 9.2 7.1 11.3 16.5
RMX1450 0.3 3.7 6.0 9.3 5.4 9.6 14.7 9.7 16.0 24.9
MX1850HD 1.1 3.9 6.1 8.7 6.9 11.2 16.6 12.6 20.7 32.0
RMX2450 0.7 4.0 6.3 9.2 9.7 15.6 22.9 16.4 27.0 40.7
MX4050HD 1.2 6.4 10.1 14.5 12.5 20.1 30.6 25.5 42.2 65.7
RMX5050 1.2 8.4 13.9 17.6 16.5 26.9 36.2 32.5 56.4 83.5
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 1.0 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 12.0 20.2 30.3
PL 1.6HVX 1.5 5.3 8.5 nr 9.6 15.0 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 13.0 19.5 nr 24.4 38.9 nr
PL 2.4MB 0.8 5.0 6.9 11.4 9.0 12.7 21.2 17.3 26.0 42.9
PL 3.4 0.9 6.4 10.8 16.5 11.5 20.5 32.0 24.9 42.0 69.1
PL 3.8X * *** *** ***
PL 4.0 1.0 11.0 15.2 21.2 18.8 27.4 40.0 35.8 57.6 83.2
PL 6.0II 2.5 10.3 15.5 23.8 19.3 30.3 47.4 39.3 68.0 105.0
PL 6.0PFC 2.1 *** *** ***
PL 9.0PFC 2.1 10.5 16.5 22.5 20.8 35.1 51.0 46.9 86.0 116.0
Current draw—120 VAC Page 2 of 12
Idl
e
Current draw
at idle or
with very
low signal
level.
1/8 Power 1/3 Power Full Power
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.
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.
Load per channel ->
8Ω 4Ω 2Ω 25V-70V-100V 8Ω 4Ω 2Ω 25V-70V-100V 8Ω 4Ω 2Ω 25V-70V-100V
Model Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes
Discontinued models (continued)
PLX1202 0.9 3.5 5.4 8.6 5.1 8.7 12.9 8.4 13.9 22.2
PLX1602 0.9 5.1 8.0 11.9 7.6 12.1 18.2 12.6 21.2 32.2
PLX2402 0.8 5.0 7.7 11.5 8.3 13.2 19.8 15.9 26.7 41.1
PLX3002 0.9 5.9 9.2 13.2 10.5 16.8 24.6 20.4 34.3 52.3
PLX3402 0.9 7.6 11.6 16.6 13.1 20.3 30.4 25.1 40.6 58.6
CX4 0.4 2.3 3.5 4.9 na 3.4 5.2 7.4 na 5.7 9.2 13.2 na
CX6 0.6 3.3 4.8 7.2 na 4.9 7.4 11.0 na 7.7 12.5 18.8 na
CX12 0.8 4.5 6.1 8.0 na 8.4 12.4 16.5 na 14.7 23.0 33.0 na
CX4T 0.4 2.3 3.5 4.9 3.3 3.4 5.2 7.4 5.0 5.7 9.2 13.2 8.7
CX6T 0.6 3.3 4.8 7.2 4.5 4.9 7.4 11.0 6.7 7.7 12.5 18.8 11.2
CX12T 0.8 4.5 6.1 8.0 5.7 8.4 12.4 16.5 10.9 14.7 23.0 33.0 21.0
USA 400 0.4 2.0 3.0 4.0 2.5 4.0 5.4 4.0 7.0 10.0
USA 900 0.6 3.4 5.8 7.4 4.0 6.3 8.2 10.0 15.0 20.0
USA 1310 0.9 6.0 9.0 13.4 7.5 11.2 15.4 14.0 21.0 28.0
USA 370 0.4 2.0 3.0 4.0 2.5 4.0 5.4 4.0 7.0 10.0
USA 850 0.6 3.4 5.8 7.4 4.0 6.3 8.2 10.0 15.0 20.0
USA 1300 0.9 6.0 9.0 13.4 7.5 11.2 15.4 14.0 21.0 28.0
3200 0.4 1.5 2.0 * 2.0 3.0 * 6.0 8.0 12.0
3350 0.4 2.2 3.8 4.4 3.0 4.5 6.5 9.0 16.0 22.0
3500 1.1 3.3 5.0 7.0 4.0 7.0 9.0 11.0 18.0 24.0
3800 0.8 4.0 6.0 9.0 5.5 10.0 15.0 12.0 22.0 32.0
SA 185 0.4 2.0 3.0 4.0 2.5 4.0 5.4 4.0 7.0 10.0
SA 425 0.6 3.4 5.8 7.4 4.0 6.3 8.2 10.0 15.0 20.0
SA 650 0.9 6.0 9.0 13.4 7.5 11.2 15.4 14.0 21.0 28.0
1100 0.1 0.8 1.4 2.0 1.0 1.7 2.4 2.0 3.0 4.0
1200 0.4 2.0 3.0 4.0 2.5 4.0 5.4 4.0 7.0 10.0
1400 0.6 3.4 5.8 7.4 4.0 6.3 8.2 10.0 15.0 20.0
1700 0.9 6.0 9.0 13.4 7.5 11.2 15.4 14.0 21.0 28.0
MPS2300 0.5 2.5 3.2 nr 3.2 4.5 nr 6.0 7.0 nr
MX700 0.4 2.5 3.8 5.6 2.5 4.5 6.8 6.0 10.0 15.0
MX1500 0.4 2.2 3.8 4.4 4.0 7.0 9.0 11.0 18.0 24.0
MX2000 0.8 4.0 6.0 9.0 5.5 10.0 15.0 12.0 22.0 32.0
Current draw—120 VAC Page 3 of 12
Idl
e
Current draw
at idle or
with very
low signal
level.
1/8 Power 1/3 Power
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.
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.
Full Power
Current draw at full power is measured with a 1 kHz sine
wave. However, it does not represent any real-world
operating condition.
Load per channel ->
8Ω 4Ω 2Ω 25V-70V-100V 8Ω 4Ω 2Ω 25V-70V-100V 8Ω 4Ω 2Ω 25V-70V-100V
Model Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes Amperes
Discontinued models (continued)
MX1000a 0.4 2.7 4.5 6.0 3.4 5.5 8.5 8.0 15.0 23.0
MX1500a 0.9 3.8 4.5 6.0 6.0 8.0 13.0 12.0 21.0 30.0
MX2000a 0.9 4.1 7.0 11.0 7.0 10.5 15.5 15.0 24.0 40.0
MX3000a 1.0 5.7 8.5 12.0 10.2 17.0 24.0 25.0 40.0 58.0
EX800 0.4 2.9 4.5 6.5 4.0 5.8 8.5 7.0 11.5 17.0
EX1250 0.4 3.5 5.2 7.5 4.5 6.5 9.3 10.0 15.0 22.0
EX1600 0.5 4.5 7.0 10.5 7.0 10.5 15.0 14.5 22.5 30.0
EX2500 1.0 5.0 7.5 11.0 8.6 15.0 22.0 19.0 31.0 41.0
EX4000 1.0 5.7 8.5 12.0 10.2 17.0 24.0 25.0 40.0 58.0
SRA1222 0.9 3.5 5.4 8.6 5.1 8.7 12.9 8.4 13.9 22.2
SRA2422 0.8 5.0 7.7 11.5 8.3 13.2 19.8 15.9 26.7 41.1
SRA3622 1.0 7.8 12.1 16.8 13.7 21.4 30.2 25.8 42.4 60.0
Current draw—120 VAC Page 4 of 12
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