Description
- Energy efficient Class-D amplifier with 2x200W output channels
- Certified Energy Star 2.1 compliant for supreme green credentials
- Compact size and high operating efficiency for cost-effective installation solutions
Experience the pinnacle of energy efficiency and sonic excellence with the Lab Gruppen E4:2 Energy Efficient Class-D Amplifier. This amplifier boasts a powerful 400W output spread across 2 flexible channels, all housed in a sleek 19" 1U rack unit. With Energy Star 2.1 certification, this amplifier guarantees exceptionally low lifetime running costs while reducing your carbon footprint.
The E4:2 features Lab Gruppen's innovative IDEEA technology, delivering high power levels with minimal distortion and power consumption. Its Rail Sensing Limiter (RSL™) ensures top-notch audio quality by reducing signal clipping, while allowing for user configuration between Hi-Z and Lo-Z outputs. This flexibility extends to asymmetric loading of channels, optimising performance and efficiency.
Ideal for installations where space and cost are crucial factors, the Lab Gruppen E4:2 Energy Efficient Class-D Amplifier is the perfect choice for those seeking a balance between performance, energy efficiency, and cost-effectiveness. Elevate your audio setup with the E4:2 and enjoy premium sound quality while saving on operating costs in the long run.
Product Specifications
General
- Number of amplifier channels: 2
- Max total output all channels driven: 400 W
- Peak output voltage per channel: 100 V / 70 Vrms
- Max. output current: 11 Arms
Max output power (all channels driven)
- 2 ohms: 200 W
- 4 ohms: 200 W
- 8 ohms: 200 W (requires the “70 V” mode for the RSL. “Lo-Z” gives 100 W)
- 16 ohms: 200 W (requires the “70 V” mode for the RSL, “Lo-Z” gives 50 W)
- 70 V: 200 W
- 100 V: Can deliver 200 W to a 100 V load tapped at 400 W
Performance
- 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: 40 V
- Sensitivity for stated power into 4 Ohm in Lo-Z mode: 4 dBu
- Sensitivity for 70.7 V out in 70 V mode: 4 dBu
- Sensitivity for stated power into 2 Ohm in Lo-Z mode: 1 dBu
- Sensitivity for stated power into 8 Ohm in 70 V mode: -0.9 dBu
- Sensitivity for stated power into 16 Ohm in 70 V mode: 2.1 dBu
- Gain in 70 V mode: 35.2 dB
- Gain in Lo-Z mode: 27.2 dB
- Level adjustment (per channel): Rear panel potentiometer, from -inf to 0 dB
Connectors and Buttons
- 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: Single fan, front to rear airflow, no filter required, temperature controlled speed
Power
- Nominal voltage: 100 – 240 VAC
- Operating voltage: 70 – 265 VAC
- Standby consumption: <1 W
- Mains connector: IEC inlet
Dimensions
- Dimensions: W: 483 mm (19”), H: 44 mm (1 U), D: 276 mm (10.9”)
Weight
Finish
- Finish: Dark grey aluminum front and black steel chassis
Approvals
- Approvals: CE, RoHS, WEEE, UL (UL 60065), CSA C22.2 NO. 60065, FCC Part 15 Subpart B Class A, PSE, CCC Energy Star
Delivery: 2-3 working days
