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
The column “Pd” lists the leakage power in relation to different operational states. The column “BTU/ hr” shows the dispensed heat amount per hour.
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| Xa 4000 | Umains | Imains | Pmains | Pout | Pd (5) | BTU/hr(1) | |
| [V] | [A] | [W] | SUB+TOP | [W] |
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| 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 | 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 | 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) |
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(3) | 1BTU = 1055.06J = 1055.06Ws |
| (4) | 10% Mains Over Voltage |
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(5) | Pd = Leakage Power |
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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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