L-Acoustics LA12X, Руководство пользователя

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Installation
Plugging the amplied controller
How to plug the amplied controller to the AC mains
Procedure
— First, connect the powerCON to the amplied controller mains panel.
MAINS:
100 - 240V ~ / 50-60 Hz / 1900 W
OUTPUT PWR PER CH / IMP:
2600 W / 4 Ω
1110000010
LA12X
— Then, connect the power plug to the mains socket.
Following this order improves the powerCON longevity.
Power consumption
The LA12X power requirements depend on the load impedance and the signal level.
mains input power and current draw (all channels driven)
maximum output power 4 x 1400 W RMS at 8 Ω 4 x 2600 W RMS at 4 Ω 4 x 3300 W RMS at 2.7 Ω
1/3 output power (-5dB) 10.5 A / 2300 W 19 A / 4200 W 26 A / 5500 W
1/8 output power (-9 dB) 4.8 A / 1050 W 8.1 A / 1850 W 11.5 A / 2400 W
idle 1 A / 160 W 1 A / 160 W 1 A / 160 W
standby 0.6 A / 10 W 0.6 A / 10 W 0.6 A / 10 W
Current values given for mains rated at 230 V. Multiply by:
— 2.3 for 100 V
— 1.9 for 120 V
— 1.15 for 200 V
Output power references
A third of the maximum output power corresponds to the worst case scenario of a program source using highly
compressed music or pink noise with amplied controller driven to clip level.
An eighth of the maximum output power corresponds to a loud music program with a small dynamic range and
9 dB of headroom (IEC standard power rating).
Heat power calculation
If a 4 Ω load is connected to each output channel of the LA12X, each channel delivers up to 2600 W.
With a standard use at 1/8 of full power (9 dB headroom), the power delivered per channel is:
2600 / 8 = 325, so a total power of 4 x 325 = 1300 W.
According to the table in section
Power consumption (p.19), the LA12X power consumption is 1850 W. The heat
power produced is then (difference between power consumption and output power):
1850 - 1300 = 550 W
19 LA12X user manual (en) version 2.0