The E 10:4 has smart green credentials delivering low lifetime cost of ownership
Small in size, huge in benefits
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 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, and a pair of full-range low impedance loudspeakers on the two remaining channels.
Lab.gruppen performance with Energy Star compliance
Lab.gruppen’s IDEEA architecture secures full Energy Star compliance by combining net operating efficiency of greater than 80% with an auto-power-down feature. After 20 minutes with no input signal, the amplifier automatically switches to standby mode – with consumption of less than 1 W – and switches back on when an input signal returns. GPIO facilities enable third-party systems to remotely control and monitor power state via contact closure.
Number of amplifier channels
Total output all channels driven
Peak output voltage per channel
100 V / 70 Vrms
Max. output current
Max output power (all channels driven)
250 W (requires the “70 V” mode for the RSL, “Lo-Z” gives 125 W)
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
Channel separation (Crosstalk) at 1 kHz
> 70 dB
2 Hz - 40 kHz
Common Mode Rejection (CMR)
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
VPL for Lo-Z mode
Sensitivity for stated power into 8 Ohm in Lo-Z mode
Sensitivity for 70.7 V out in 70 V mode
Sensitivity for stated power into 4 Ohm in Lo-Z mode
Sensitivity for stated power into 16 Ohm in 70 V mode