Crown Audio XLS Series operation manual Xls

XLS Series Power Amplifiers

7 AC Power Draw and Thermal Dissipation

XLS 202

										L O A D
			2 Ohm Stereo						4 Ohm Stereo						8 Ohm Stereo
	AC	Current Draw			Thermal		AC	Current Draw			Thermal		AC	Current Draw			Thermal
		(Amps)			Dissipation			(Amps)			Dissipation			(Amps)			Dissipation
Duty	Mains						Mains						Mains
	Power						Power						Power
Cycle
	Draw	120V		230V	btu/hr	kcal/hr	Draw	120V		230V	btu/hr	kcal/hr	Draw	120V		230V	btu/hr	kcal/hr
	(W)						(W)						(W)
50%	529	5.1		2.6	953	240	427	4.1		2.1	776	196	315	3.0		1.6	580	146
40%	427	4.1		2.1	776	196	346	3.3		1.7	634	160	256	2.4		1.3	477	120
30%	325	3.1		1.6	598	151	264	2.5		1.3	491	124	197	1.9		1.0	374	94
20%	223	2.1		1.1	420	106	182	1.7		0.9	349	88	137	1.3		0.7	271	68
10%	121	1.2		0.6	243	61	101	1.0		0.5	207	52	78	0.7		0.4	168	42
								Figure 7.1 XLS 202
						Power Draw, Current Draw and Thermal Dissipation at Various Duty Cycles

XLS 402

										L O A D
			2 Ohm Stereo						4 Ohm Stereo						8 Ohm Stereo
	AC	Current Draw			Thermal		AC	Current Draw			Thermal		AC	Current Draw			Thermal
		(Amps)			Dissipation			(Amps)			Dissipation			(Amps)			Dissipation
Duty	Mains						Mains						Mains
	Power						Power						Power
Cycle
	Draw	120V		230V	btu/hr	kcal/hr	Draw	120V		230V	btu/hr	kcal/hr	Draw	120V		230V	btu/hr	kcal/hr
	(W)						(W)						(W)
50%	1023	10.0		5.2	1547	390	725	7.1		3.7	1109	279	479	4.7		2.5	748	189
40%	823	8.1		4.2	1253	316	584	5.7		3.0	903	228	388	3.8		2.0	614	155
30%	623	6.1		3.2	960	242	444	4.4		2.3	697	176	297	2.9		1.5	480	121
20%	423	4.1		2.2	666	168	304	3.0		1.6	491	124	205	2.0		1.1	346	87
10%	223	2.2		1.1	372	94	163	1.6		0.8	285	72	114	1.1		0.6	213	54

Figure 7.2 XLS 402

Power Draw, Current Draw and Thermal Dissipation at Varioius Duty Cycles

Operation Manual page 19