QSC Audio CX Series Benutzerhandbuch

Seite von 32
14
HEAT EMISSIONS
Essentially, a power amplifier draws electrical energy from the AC mains, converts it to DC, and then converts
it again into an analog of the input signal to send out to the loudspeakers. Any AC power that enters the amplifier
through the power cord and does not exit through the speaker outputs turns into heat, which the amplifier must
rid itself of by exhausting it to the outside. In indoor use this may present a sizeable challenge to a building’s
air conditioning system. Use the table below to predict the heat that will be emitted by your amplifier.
Full Power
1/3 Power
1/8 Power
Idle
Model
Channel Load BTU/hr kcal/hr
BTU/hr kcal/hr
BTU/hr kcal/hr
BTU/hr kcal/hr
CX4, CX4T
8
Ω
Ω
Ω
Ω
Ω
 + 8
Ω
Ω
Ω
Ω
Ω
645
163
615
155
510
128
85
22
4
Ω
Ω
Ω
Ω
Ω
 + 4
Ω
Ω
Ω
Ω
Ω
1265
318
1060
267
830
210
85
22
2
Ω
Ω
Ω
Ω
Ω
 + 2
Ω
Ω
Ω
Ω
Ω
2340
590
1700
429
1295
326
85
22
70V + 70V
1365
344
1050
264
800
202
85
22
CX6, CX6T
8
Ω
Ω
Ω
Ω
Ω
 + 8
Ω
Ω
Ω
Ω
Ω
1406
354
1020
257
604
152
229
58
4
Ω
Ω
Ω
Ω
Ω
 + 4
Ω
Ω
Ω
Ω
Ω
2525
637
1617
408
921
232
229
58
2
Ω
Ω
Ω
Ω
Ω
 + 2
Ω
Ω
Ω
Ω
Ω
4658
1174
2532
638
1290
325
229
58
70V + 70V
2010
507
1503
379
1141
288
229
58
CX12, CX12T
8
Ω
Ω
Ω
Ω
Ω
 + 8
Ω
Ω
Ω
Ω
Ω
1791
452
1239
312
805
203
297
75
4
Ω
Ω
Ω
Ω
Ω
 + 4
Ω
Ω
Ω
Ω
Ω
3330
840
2081
525
1222
308
297
75
2
Ω
Ω
Ω
Ω
Ω
 + 2
Ω
Ω
Ω
Ω
Ω
5698
1437
3146
793
1611
406
297
75
70V + 70V
3772
951
2338
589
1280
323
297
75
Heat emissions of CX
amplifiers under various
conditions