Lab Gruppen E 5:4 Amplifier

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Lab Gruppen E 5:4 Amplifier

(1 customer review)

The Lab Gruppen 500 Watt Amplifier – carrying 4 flexible output channels in a high power density 1 rack unit form factor saves rack space and system cost. Energy efficient with Energy Star* certification for supreme green credentials and exceptionally low lifetime running costs.



UPC: 4033653090650 SKU: LAB-E5:4 Category: Tags:
Lab Gruppen Canada

Features of the Lab Gruppen 500 Watt Amplifier with 4 Flexible Channels

  • 500 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 with Energy Star* certification for supreme green credentials and exceptionally low lifetime running costs
  • Flexible IntelliDrive permits delivering the 4 x 125 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 4
Total output all channels driven 500 W
Peak output voltage per channel 100 V / 70 Vrms
Max. output current 9.9 Arms
Max output power (all channels driven)
2 ohms N.R.
4 ohms 125 W
8 ohms 125 W
16 ohms 125 W (requires the “70 V” mode for the RSL, “Lo-Z” gives 63 W)
70 V 125 W
100 V Can deliver 125 W to a 100 V load tapped at 250 W
THD 20 Hz – 20 kHz at 1 W <0.1%
THD at 1 kHz and 1 dB below clipping <0.05%
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 44.7 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 0 dBu
Gain in 70 V mode 35.2 dB
Gain in Lo-Z mode 28.2 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
Cooling 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
Dimensions W: 483 mm (19”), H: 44 mm (1 U), D: 381 mm (15”)
Weight 6 kg (13.2 lbs)
Finish Dark grey aluminum front and black steel chassis
Approvals CE, ANSI/UL 60065 (ETL), CSA, CCC, PSE, Energy Star



Lab Gruppen

Founded and based in Sweden over 30 years ago, Lab Gruppen has become one of the most respected professional-grade power amplifier manufacturers in the world. With its unique switch mode and other patented technologies, Lab Gruppen provides advanced power amplifiers and powered loudspeaker management systems that are utterly reliable and sonically superior. Along with its primary focus and heritage in touring and performance audio, Lab Gruppen has more recently forged a reputation in the world of installed sound – applying tour-honed design philosophies to dedicated installation platforms of peerless pedigree. All Lab Gruppen products are designed and engineered in Kungsbacka, Sweden – rigorously tested and quality assured with an industry-renown reputation for reliability and longevity. From the largest performance tours such as U2’s 360 world tour to the most prestigious permanent installations, Lab Gruppen enjoys a truly global customer base. Every Lab Gruppen product has been designed with one clear philosophy in mind: to offer our customer the best possible solution for a given application; sounding better, offering greater value and providing unrivalled peace of mind. All Lab Gruppen amplifiers share a common sonic signature, renowned for pristine audio quality across the range, a product of a pure and focused approach to amplifier design. From the flagship PLM 20000Q – the most advanced and powerful amplification and loudspeaker processing platform on the planet – to the Energy Star approved E Series  range of contractor-friendly installation amplifiers, Lab Gruppen is a by-word for ‘best in class’.

GTR Direct is a proud dealer for Lab Gruppen Canada
Lab Gruppen Canada

1 review for Lab Gruppen E 5:4 Amplifier

  1. Chris Black

    Great amplifier

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