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MAINS OPERATION
The following tables allow determining power supply and cabling requirements. The values of the
column „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.
P3000RL Normal Mode
Idling
Max. Output @ 8Ω
Max. Output @ 4Ω
1⁄3 max. Output @ 4Ω
1⁄8 max. Output @ 4Ω
Normal Operation (-10dB) @ 4Ω
Nominal Operation (0dB) @ 4Ω
Alarm Operation (-3dB) @ 4Ω
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 & RESULTING TEMPERATURE
U
[V]
I
Mains
230V
(1)
230V
(1)
230V
(1)
230V
(2)
230V
(1)
230V
(1)
230V
(1)
230V
[A]
P
Mains
Mains
[W]
1.0
152
13.8
2560
22.4
4330
2 x 1300
13.9
2575
7.8
1350
8.0
1420
21.6
4170
2 x 1200
16.0
3020
15
P
[W]
P
[W]
BTU/hr
out
d
-
152
2 x 850
860
1730
2 x 433
1709
2 x 163
1024
2 x 120
1180
1770
2 x 610
1800
(3)
519
2934
5903
5831
3494
4026
6040
6142
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