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Lab Gruppen E 40:4-4000 Watt Amplifier with 4 Flexible Output Channels for Installation Applications

Lab Gruppen E 40:4-4000 Watt Amplifier with 4 Flexible Output Channels for Installation Applications

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  • 4,000 W amplifier carrying 4 flexible output channels in a high power density 1 rack unit form factor saves rack space and system cost

  • Energy efficient for supreme green credentials and exceptionally low lifetime running costs

  • 4 x 900 Watts into 2 Ohms, 4 x 1,000 Watts into 4 Ohms, 4 x 1,000 Watts into 8 Ohms, 4 x 625 Watts into 16 Ohms, 4 x 1,000 Watts into Hi-Z 70 V, 4 x 1,000 Watts into Hi-Z 100 V

  • Asymmetric channel loading allows mixing and matching loads with different impedances to maximize overall system efficiency and inventory utilization

  • High efficiency amplifier with low power consumption and minimized heat generation lowers demands on the installations' mains distribution and cooling systems

  • IDEEA outputs stage based on proprietary, state-of-the-art Class-D amplifier technology for superior performance

  • Comprehensive fail safe circuit protection ensures continued operation even under reduced operating conditions

  • Auto-standby and auto-power-on reduces power consumption in non-operating cycles

  • Rail Sense Limiter (RSL) greatly reduces signal clipping and ensures simple configuration for constant voltage and low impedance loads

  • Built in 50 Hz high pass filter selectable per channel available on rear panel switch

  • Per-channel attenuation knob and signal LED on rear panel for simple commissioning

  • Efficient cooling with temperature-controlled fan with front to back airflow

  • Aluminum front panel with power and temperature LEDs and per-channel signal and limit LEDs

  • GPIO connector with power control and indication for further system integration

  • Balanced high-quality analog inputs and amplifier outputs on detachable screw terminals



The E 40:4 has smart green credentials delivering low lifetime cost of ownership.

Building on Lab Gruppen’s touring reputation for sonic excellence and rock-solid durability, E Series brings a competitive edge to the installation market by adding ultra-compact size, high operating efficiency, output configuration flexibility, and an unprecedented cost-benefit ratio.

At the heart of E Series is Lab Gruppen’s IDEEA (IntelliDrive Energy Efficient Amplifier) technology. Based around a patented Class D variant output stage, IDEEA produces high power levels with very low distortion while drawing minimal mains current.

Lab Gruppen’s proprietary Rail Sensing Limiter (RSL™), also exclusive to E Series, greatly reduces signal clipping to ensure high quality audio output at all times. User configurable for Hi-Z (70 V or 100 V) or Lo-Z, RSL senses rail voltages and optimizes each output for instantaneous load conditions. RSL settings also facilitate asymmetric loading of the channels to optimize performance and efficiency. Total available output power can be allocated among the channels as required by the application. This makes it possible, for example, to drive a small sub on one channel, a number of 70 V ceiling loudspeakers on the second channel.

Flexible Asymmetric Loading

Optimize performance and efficiency from each individual unit - allowing the total available output power to be utilized unequally between the channels, or for mono use with all power on a single channel. This enables you to drive a small sub on one channel and a number of 70 V distributed ceiling loudspeakers on the other.

Smart Green Credentials with Our IDEEA Platform

The now proven IntelliDrive Energy Efficient Amplifier (IDEEA) platform represents the latest evolution of our amplifier design philosophies, drawing from technologies in our flagship PLM Series, to create ingenious contractor solutions with supreme green credentials.


Number of powered channels 4
Total output all channels driven 2000 W
Max output voltage per channel
141 Vp / 100 Vrms
Max output current per channel
16.3 Arms
Asymmetric load operation Units are capable of delivering extra power to one channel while sending significantly less to the other
Signal to Noise Ratio >106 dBA
Frequency Response 2 Hz - 40 kHz
Input impedance 20 kΩ
Common Mode Rejection (CMR) 50 dB
Output impedance 25 mΩ
Power consumption 600 W
Standby consumption
<2.5 W
Mains connector Standard IEC receptacle
Dimensions 44 x 483 x 417 mm
(1.7 x 19 x 16.4")
Weight 7.9 kg (17.4 lbs)
Finish Dark grey aluminum front and black steel chassis
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