LAB GRUPPEN E 10:4_US1 1000W Amplifier with 4 Flexible Output-Channels for Installation Applications (E 10:4_US1)

Vendor: Lab Gruppen
LAB GRUPPEN E 10:4_US1 1000W Amplifier with 4 Flexible Output-Channels for Installation Applications (E 10:4_US1) The E 10:4 boasts smart green credentials, offering a low lifetime cost of ownership. Small in Size, Huge...

LAB GRUPPEN E 10:4_US1 1000W Amplifier with 4 Flexible Output-Channels for Installation Applications (E 10:4_US1)

The E 10:4 boasts smart green credentials, offering a low lifetime cost of ownership.

Small in Size, Huge in Benefits

The E Series by Lab Gruppen builds upon its legacy of exceptional sound quality and robust reliability from the touring industry, now offering a competitive edge tailored for installations. Its compact size, high operational efficiency, versatile output configuration, and impressive cost-benefit ratio redefine standards in the market. Central to the E Series is Lab Gruppen’s IDEEA (IntelliDrive Energy Efficient Amplifier) technology, leveraging a patented Class D variant output stage. This innovation delivers high power while keeping distortion levels remarkably low and drawing minimal mains current. Exclusive to the E Series, Lab Gruppen’s Rail Sensing Limiter (RSL™) effectively minimizes signal clipping, ensuring consistently high-quality audio output. It adapts to varying load conditions, whether configured for Hi-Z (70 V) or Lo-Z, optimizing each output channel based on rail voltages. RSL settings allow for asymmetrical loading, optimizing performance and efficiency. This flexibility enables precise allocation of total output power among channels, catering to diverse applications like driving subs, ceiling speakers, and full-range loudspeakers simultaneously.

Lab Gruppen Performance with Energy Star Compliance

Lab Gruppen's Energy Star-qualified products maintain Lab Gruppen's renowned sonic performance and robust power output while meeting the rigorous efficiency standards of Energy Star certification. They achieve exceptionally low current draw, even at high output levels, and reduce power consumption during non-operational cycles. The IDEEA architecture, inherent in Lab Gruppen's systems, ensures full Energy Star compliance. It combines an impressive net operating efficiency exceeding 80% with an auto-power-down feature. When no input signal is detected for 20 minutes, the amplifier seamlessly transitions into standby mode, consuming less than 1 W. It efficiently reactivates upon the return of an input signal. Additionally, the GPIO facilities enable third-party systems to remotely monitor and control the power state using contact closure, enhancing control and energy management capabilities.

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.

Flexible Asymmetric Loading

This capability seems incredibly versatile. By distributing power unequally between channels or consolidating all the power to a single channel for mono use, you can create unique configurations. For instance, it allows the driving of a small subwoofer on one channel while powering multiple 70 V distributed ceiling speakers on another, providing flexibility in audio setups.


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

  • Flexible IntelliDrive permits delivering the 4 x 250 W at constant voltage 70 V or low impedance (2, 4, 8 and 16 Ohms) on any channel

  • 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 to below 1 W 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 fans 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

Number of amplifier channels


Total output all channels driven

1000 W

Peak output voltage per channel

100 V / 70 Vrms

Max. output current

14 Arms

Max output power (all channels driven)
2 ohms


4 ohms

250 W

8 ohms

250 W

16 ohms

250 W (requires the “70 V” mode for the RSL, “Lo-Z” gives 125 W)

70 V

250 W

100 V

Can deliver 250 W to a 100 V load tapped at 500 W

THD 20 Hz - 20 kHz at 1 W


THD at 1 kHz and 1 dB below clipping


Signal to Noise Ratio

>112 dBA

Channel separation (Crosstalk) at 1 kHz

> 70 dB

Frequency Response

2 Hz - 40 kHz

Input impedance

20 kOhm

Common Mode Rejection (CMR)

50 dB

Output impedance

25 mOhm

Gain, Sensitivity and Limiters
Limit and gain switch defining limit and gain (per channel)

2 pos: Lo-Z and 70 V

VPL for 70 V mode

100 V

VPL for Lo-Z mode

63.2 V

Sensitivity for stated power into 8 Ohm in Lo-Z mode

4 dBu

Sensitivity for 70.7 V out in 70 V mode

4 dBu

Sensitivity for stated power into 4 Ohm in Lo-Z mode

1 dBu

Sensitivity for stated power into 16 Ohm in 70 V mode

3 dBu

Gain in 70 V mode

35.2 dB

Gain in Lo-Z mode

31.2 dB

Level adjustment (per channel)

Rear panel potentiometer, from -inf to 0 dB

Connectors and Switches
Input connectors (per ch.)

3 - pin detachable screw terminals, electronically balanced

Output connectors (per ch.)

2 - pin detachable screw terminals

High pass filter

Fixed at 50 Hz, switchable per channel

Power control

Can be used to go between standby and ON

GPI (power control input)

Contact closure type, 2-pin detachable screw terminal, controls the power state

GPO (power state output)

Contact closure type, 2-pin detachable screw terminal, for external monitoring of the power state


Two fans, front-rear airflow, temperature controlled speed

Nominal voltage

100 - 240 VAC

Operating voltage

85 – 265 VAC

Standby consumption

<1 W

Mains connector

IEC inlet


W: 483 mm (19”), H: 44 mm (1 U), D: 381 mm (15”)


6.2 kg (13.7 lbs)


Dark grey aluminum front and black steel chassis