Installation
Plugging the amplied controller
How to plug the amplied controller to the AC mains
Procedure
— First, connect the powerCON to the amplied controller mains panel.
— Then, connect the power plug to the mains socket.
Following this order improves the powerCON longevity.
Power consumption
The LA4X power requirements depend on the load impedance and the signal level.
mains input power and current draw (all channels driven)
maximum ouput power 4 x 1000 W at 4 or 8 Ω
1/3 ouput power (-5dB) 7 A / 1600 W
1/8 ouput power (-9 dB) 3 A / 750 W
idle 0.26 A / 60 W
standby < 0.1 A / 11 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 amplied controller driven to clip level.
An eighth of the maximum output power corresponds to a loud music program with a small dynamic range and
9dB of headroom (IEC standard power rating).
Heat power calculation
If a 4 Ω load is connected to each output channel of the LA4X, each channel delivers up to 1000 W.
With a standard use at 1/8 of full power (9 dB headroom), the power delivered per channel is:
1000 / 8 = 125 W, so a total power of 4 x 125 = 500 W.
According to the table in section Power consumption (p.17), the LA4X power consumption is 750 W. The heat power
produced is then (difference between power consumption and output power):
750 - 500 = 250 W
17 LA4X user manual (EN) version 9.1
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