Qsc PLD4.2 Owner's Manual
28
EN
TD-000368-00-A
Heat Loss Charts
BTU/hr
kcal/hr
Idle
PLD 4.3
225
57
PLD 4.5
286
72
Load per Channel
8
Ω
4
Ω
2
Ω
BTU/hr
kcal/hr
BTU/hr
kcal/hr
BTU/hr
kcal/hr
1/8th Power
PLD 4.3
684
172
794
200
1040
262
PLD 4.5
811
204
1144
288
1124
283
1/3rd Power
PLD 4.3
983
248
1261
318
1869
470.988
PLD 4.5
881
222
1708
430
1737
438
Full Power
PLD 4.3
2498
629
2925
737
4198
1058
PLD 4.5
3116
785
5318
1340
4208
1060
Idle
Thermal loss at idle or with very low signal level.
1/8 Power
Thermal loss at 1/8 of full power is measured with pink noise. It approximates operating with music or voice with light clipping and represents the
amplifier's typical "clean" maximum level, without audible clipping. Use these figures for typical maximum level operation.
amplifier's typical "clean" maximum level, without audible clipping. Use these figures for typical maximum level operation.
1/3 Power
Thermal loss at 1/3 of full power is measured with pink noise. It approximates operating with music or voice with very heavy clipping and a very
compressed dynamic range.
compressed dynamic range.
Full Power
Thermal loss at full power is measured with a 1 kHz sine wave. However, it does not represent any real-world operating condition.
NOTE: Specifications are subject to change without notice.