Dynacord Xa 4000 owner manual Mains Operation & Resulting Temperatures

MAINS OPERATION & RESULTING TEMPERATURES

MAINS OPERATION & RESULTING POWER AMP TEMPERATURES

The following tables are useful in determining power supply and cabling requirements.

The power drawn from the mains network is converted into acoustic output to feed the connected loudspeaker systems plus heat. The difference between drawn power and dispensed power is referred to as leakage power or dissipation (Pd). The amount of heat resulting from power dissipation might remain inside of a rack-shelf and needs to be diverted using appropriate measures. The following table is meant as auxiliary means for calculating temperatures inside of rack-shelf systems/cabinets and the ventilation efforts necessary.

The column “Pd” lists the leakage power in relation to different operational states. The column “BTU/ hr” shows the dispensed heat amount per hour.

	Xa 4000	Umains	Imains		Pmains	Pout	Pd (5)	BTU/hr(1)
		[V]	[A]		[W]	SUB+TOP	[W]
						[W]
	idle	230V		1	80	-	80	273
	Max. Output Power @ 8Ω (1)	230V	10,6		1640	600+500	540	1840
	Max. Output Power @ 4Ω (1)	230V	18,2		3000	1100+900	1000	3410
	1/3 Max. Output Power @ 4Ω (1)	230V	10,3		1580	366+300	914	3120
	1/8 Max. Output Power @ 4Ω (1)	230V	4,5		610	137+113	360	1230
	1/8 Max. Output Power @ 4Ω (2)	230V	5,5		790	137+113	540	1840
1/8 Max. Output Power @ 4Ω (2), (4)		254V	5,5		840	166+137	537	1830
	Normal Mode (-10dB) @ 4Ω (1)	230V	4,1		550	110+90	350	1190
Rated Output Power (0dB) @ 4Ω (1)		230V	17,2		2800	1000+800	1000	3410
Alert (Alarm) Mode (-3dB) @ 4Ω (1)		230V	12,3		1920	500+400	1020	3480
	1/3 Max. Output Power @ 2Ω (2)	230V	16,7		2720	600+533	1587	5420
	1/8 Max. Output Power @ 2Ω (1)	230V	7,2		1050	225+200	625	2130
	1/8 Max. Output Power @ 2Ω (2)	230V	8,8		1260	225+200	835	2850
(1)	Sine Signal Modulation (80Hz/1kHz)		(2)	Band-limited Pink Noise
(3)	1BTU = 1055.06J = 1055.06Ws		(4)	10% Mains Over Voltage
(5)	Pd = Leakage Power

The following factors allow direct proportional calculation of the power consumption for different mains supply voltages:

100V = 2.3; 120V = 1.9; 220V = 1.05; 240V = 0.96

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