Yamaha PX-3, Reference Manual

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Reference — Current draw and thermal dissipation
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PX10/PX8/PX5/PX3 Reference Manual
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PX5
100 V/50 Hz
Line current (A) Watt (W) Thermal dissipation
100 V
Power consumption
(In)
Power consumption
(Out)
Watts dissipated Btu/h kcal/h
Idle 0.8 46 0 46 157 40
1/8 out
8Ω/ch 1.9 122 63 59 201 51
4Ω/ch 2.7 189 100 89 304 77
1/3 out
8Ω/ch 3.6 253 167 86 293 74
4Ω/ch 5.6 424 267 157 536 135
110 V-120 V/60 Hz
Line current (A) Watt (W) Thermal dissipation
120 V
Power consumption
(In)
Power consumption
(Out)
Watts dissipated Btu/h kcal/h
Idle 0.8 54 0 54 184 46
1/8 out
8Ω/ch 1.7 130 63 67 229 58
4Ω/ch 2.4 196 100 96 328 83
1/3 out
8Ω/ch 3.1 259 167 92 314 79
4Ω/ch 4.8 428 267 161 549 138
220 V-240 V/50 Hz
Line current (A) Watt (W) Thermal dissipation
230 V
Power consumption
(In)
Power consumption
(Out)
Watts dissipated Btu/h kcal/h
Idle 0.5 57 0 57 195 49
1/8 out
8Ω/ch 1.0 130 63 67 229 58
4Ω/ch 1.4 197 100 97 331 83
1/3 out
8Ω/ch 1.9 259 167 92 314 79
4Ω/ch 2.9 434 267 167 570 144