Electro-Voice P900RL - Handbuch (Seite 14)

14
MAINS OPERATION & RESULTING TEMPERATURE
P1200RL U
Mains
[V] I
Mains
[A] P
Mains
[W] P
out
[W] P
d
[W] BTU/hr (3)
Idling 230V 0.55 85 - 85 290
Max. Output @ 8Ω
(1)
230V 6.40 1185 2 x 380 425 1450
Max. Output @ 4Ω
(1)
230V 10.5 2030 2 x 600 830 2832
1⁄3 max. Output @ 4Ω
(1)
230V 6.60 1230 2 x 200 830 2832
1⁄8 max. Output @ 4Ω (2)
230V 3.80 675 2 x 75 525 1791
Normal Operation (-10dB) @ 4Ω
(1)
230V 3.78 670 2 x 50 570 1945
Nominal operation (0dB) @ 4Ω
(1)
230V 9.69 1870 2 x 500 870 2969
Alarm Operation (-3dB) @ 4Ω
(1)
230V 7.27 1370 2 x 250 870 2969
P900RL U
Mains
[V] I
Mains
[A] P
Mains
[W] P
out
[W] P
d
[W] BTU/hr (3)
Idling 230V 0.45 70 - 70 239
Max. Output @ 8Ω
(1)
230V 4.97 920 2 x 280 360 1228
Max. Output @ 4Ω
(1)
230V 8.16 1580 2 x 450 680 2320
1⁄3 max. Output @ 4Ω (1)
230V 5.13 960 2 x 150 660 2252
1⁄8 max. Output @ 4Ω (2)
230V 2.90 520 2 x 56.3 407.5 1390
Normal Operation (-10dB) @ 4Ω
(1)
230V 2.84 505 2 x 35 435 1484
Nenn Operation (0dB) @ 4Ω
(1)
230V 7.32 1410 2 x 350 710 2423
Alarm Operation (-3dB) @ 4Ω
(1)
230V 5.48 1030 2 x 175 680 2320
For approximation; when operating the appliance at 120V mains the stated current values need to be doubled.
(1) modulated with sine signal
(2) modulated with VDE-noise
(3) 1BTU = 1055.06J = 1055.06Ws
MAINS OPERATION
The following tables allow determining power supply and cabling requirements. The values of
the column „1/8 max. Output @ 4Ω” are relevant for “normal” operation. These values are based
on operating the power amplifier with VDE-noise at 1/8 of the maximum output power, which
approximately equates the load of the power amplifier being operated with a music signal at maximum
volume possible, without noticeable clipping
.
RESULTING TEMPERATURE INSIDE THE POWER AMPLIFIER
The power drawn from the mains network is converted into acoustic output power to feed the
connected loudspeaker systems & heat. The difference between drawn power and dispensed power
is called 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
provides auxiliary means for calculating the temperatures inside of a rack-shelf system/cabinet and the
ventilation efforts necessary.
The column “Pd” lists the leakage power in relation to different operational states. The column “BTU/hr”
lists the dispensed heat amount per hour
.