Lab.gruppen fP Series FP 2400Q User Manual

Last, the "regular operating power" as defined by the safety standard IEC 65/ANSI/UL 6500 and used
by a majority of safety agencies. The regular operating power is measured by using pink noise, and with
an average output power equal to 1/8 of full power. The one eighth of the total power is as loud as you
can play music while making some attempt to avoid obvious clipping. It also corresponds to a headroom
Table 2
of 9dB, which is very low for regular audio program.
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e calculated as in the following example:
4 ohms load on an amplifier
, and
g to the chart above is then 1330 watts. This chart shows the active
he heat power produced is the difference between the power consumption and output power:
produced in watts, in kcal per hour, and also in BTU per hour.
he efficiency can also be calculated, it being the output-power divided by the input-power:
07 watts / 1325 watts= 38%.
Power 1/3 Power 1/8 Power Idle
[W] note 1 note 2
fP 2400Q 8 ohms 4x 360 1140 820 175
4 ohms* 4x 380 1325 840 175
2 ohms* 4x 500 2125 1440 175
* MLS at -3dB
note 1 Average power with music as program source. The amplifier driven to clip level.
note 2 Normal music power with 9dB headroom, IEC standard power rating.
MAINS INPUT POWERMAX OUTPUT POWER
The heat power can b
We consider a headroom of at least 5dB (1/3 of full power) and a
producing 380 watts per channel. The 1/3 power per channel is accordingly 380 / 3 = 127 watts
total output 4 x 127 = 507 watts.
The power consumption accordin
power consumption of the amplifier with different loads and power levels.
T
1325 – 507 = 818 watts per amplifier.
The chart below shows the heat power
1/3 Power(1)1/8 Power (2
)
1/3 Power(1) 1/8 Power (2
)
1/3 Power(1)1/8 Power (2)
[W] [W] kcal / h kcal / h BTU / h BTU / h
fP 2400Q 8 ohms 660 640 570 550 2250 2180
4 ohms 818 650 700 560 2790 2220
2 ohms 1458 1190 1250 1020 4980 4060
note 1 Average power with music as program source. The amplifier driven to clip level.
note 2 Normal music power with 9dB headroom, IEC standard power rating.
HEAT POWER
T
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XLR Input connectors are active balanced and wired according to the IEC 268, that is pin 2 hot, and wired
ND/SHIELD
IN 2 HOT (+)
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in the following way:
PIN 1 GROU
P
PIN 3 COLD (-)
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Lab.gruppen fP Series FP 2400Q Specifications

General

Brand	Lab.gruppen
Model	fP Series FP 2400Q
Category	Amplifier
Language	English