Lab Gruppen E 8:2 - 400W 2-Channel at 4-Ohm 70V/100V Power Amplifier with Screw Terminal Inputs/Outputs and Energy Star Certification in Dark Gray Finish

The Lab Gruppen E 8:2 is a high-performance, energy-efficient power amplifier designed to deliver exceptional sound quality and reliability for professional audio installations. With its compact 1U form factor and cutting-edge technology, the E 8:2 is perfect for a variety of applications, including distributed sound systems in commercial, industrial, and residential installations. This 2-channel amplifier provides a total output power of 800W, offering up to 400W per channel at 4 ohms, and is capable of driving both low impedance and constant voltage systems (70V/100V). With its robust features and advanced energy-saving capabilities, the E 8:2 stands out as a top-tier solution for modern audio amplification needs.

At the heart of the E 8:2 is Lab Gruppen's IntelliDrive Energy Efficient Amplifier (IDEEA) technology. This patented Class-D output stage provides high power levels with minimal distortion while drawing very low amounts of mains current, making it highly efficient. This advanced technology ensures that the amplifier can operate at its full potential without putting unnecessary strain on the power supply. Additionally, the E 8:2 features Rail Sensing Limiter (RSL) technology, which reduces signal clipping and enhances the overall performance by adjusting to instantaneous load conditions. This feature ensures that the amplifier provides smooth, clean audio, even in challenging installations with varied load types.

One of the standout features of the E 8:2 is its flexibility in output configuration. The amplifier can be used with low impedance loads (2, 4, 8, and 16 ohms) or constant voltage systems (70V/100V), making it adaptable for a wide range of speaker configurations. The amplifier is capable of delivering up to 400W per channel at 4 ohms, and when configured for 70V or 100V systems, it provides a substantial 800W output per channel. This allows the E 8:2 to drive multiple ceiling speakers or small subwoofers, depending on the installation's needs. Furthermore, the E 8:2 supports asymmetric load operation, meaning that one channel can deliver more power while the other can be reduced, allowing for maximum efficiency and flexibility when handling mixed speaker loads.

The amplifier is also equipped with several energy-saving features that make it ideal for installations where minimizing energy consumption is important. It is Energy Star certified, ensuring that it meets strict energy efficiency standards. The E 8:2 has a low standby consumption of less than 1W, and it automatically enters standby mode after 20 minutes of inactivity. This feature not only reduces power consumption but also helps extend the lifespan of the equipment by reducing unnecessary wear. When the amplifier detects an input signal, it automatically resumes operation, making it both energy-efficient and convenient for installers.

For ease of installation and setup, the E 8:2 is designed with a rear panel that includes per-channel attenuation knobs, a high-pass filter switch, and signal LEDs. The amplifier also features balanced, high-quality analog inputs and outputs on detachable screw terminals, providing secure and easy connections. The built-in 50Hz high-pass filter can be selected per channel, which helps protect low-frequency drivers by removing unwanted subsonic signals. Cooling is handled by a temperature-controlled fan that ensures the amplifier stays cool even during extended operation, with front-to-rear airflow for optimal ventilation.

In addition to its impressive technical features, the E 8:2 is housed in a rugged dark gray aluminum front and black steel chassis that ensures durability and a sleek, professional appearance. With a weight of just 9.9 lbs and dimensions of 17 x 19 x 10.9 inches, the E 8:2 is compact and can easily be integrated into any professional audio rack setup. The amplifier also offers GPIO (General Purpose Input/Output) connectors for further system integration, allowing third-party systems to control and monitor the amplifier's power state via contact closure.

Overall, the Lab Gruppen E 8:2 is a reliable, flexible, and energy-efficient amplifier that delivers powerful audio output with minimal distortion, making it an ideal solution for installations requiring high-quality amplification and energy savings. Its advanced features, including IntelliDrive technology, Rail Sensing Limiter, and Energy Star certification, ensure that it meets the demands of modern audio systems while keeping operational costs low.

Features

• 800W total output with 2 channels, up to 400W per channel at 4 ohms, and 800W per channel at 70V/100V
• Lab Gruppen's IntelliDrive Energy Efficient Amplifier (IDEEA) technology for high performance and low power consumption
• Rail Sensing Limiter (RSL) to optimize output and reduce signal clipping across varying load conditions
• Energy Star certified with low standby consumption (<1W) and auto-power-down feature for energy savings
• Flexible output options for both low impedance (2, 4, 8, 16 ohms) and constant voltage (70V/100V) systems
• Asymmetric load operation to maximize system efficiency and reduce inventory requirements
• Built-in 50Hz high-pass filter, switchable per channel, for speaker protection
• Rear panel attenuation knobs and signal LEDs for easy setup and monitoring
• Efficient cooling with temperature-controlled fan and front-to-rear airflow
• Dimensions: 17 x 19 x 10.9 inches
• Weight: 9.9 lbs
• Finish: Dark gray aluminum front and black steel chassis

Specifications

General

• Number of powered channels: 2
• Total output all channels driven: 800 W
• Max output voltage per channel: 100 Vp / 70 Vrms
• Max output current per channel: 16 Arms
• Asymmetric load operation: Units are capable of delivering extra power to one channel while sending significantly less to the other

Maximum Output Power (all channels driven)

• 2 Ω (Lo-Z mode): 400 W
• 4 Ω (Lo-Z mode): 400 W
• 8 Ω (Lo-Z / Hi-Z mode): 200 / 400 W
• 16 Ω (Lo-Z / Hi-Z mode): 100 / 290 W
• 70 V (Hi-Z mode): 400 W
• 100 V (Hi-Z mode): 400 W into 100 V load tapped @ 800 W

Maximum Output Power (single channels max)

• 2 Ω (Lo-Z mode): 600 W
• 4 Ω (Lo-Z / Hi-Z mode): 400 W
• 8 Ω (Lo-Z / Hi-Z mode): 200/600 W
• 16 Ω (Lo-Z / Hi-Z mode): 100/310 W
• 70 V (Hi-Z mode): 800 W
• 100 V (Hi-Z mode): 800 W into 100 V load tapped @ 1600 W

Performance

• THD (20 Hz - 20 kHz @ 1 W into 8 Ω): <0.1%
• THD @ 1 kHz, 1 dB below clipping: <0.05%
• Signal-to-noise ratio: >112 dBA
• Channel separation (crosstalk) @ 1 kHz: >70 dB
• Frequency response: 2 Hz - 40 kHz
• Input impedance: 20 kΩ
• Input common mode rejection, CMR: 50 dB
• Output impedance: 25 mΩ

Gain, Sensitivity and Limiters

• Limit and gain switch (per channel): 2 pos: Lo-Z and Hi-Z
• VPL for Hi-Z mode: 100 V
• VPL for Lo-Z mode: 56.6 V
• Sensitivity for 70 V out in Hi-Z mode: 4 dBu
• Sensitivity for full power into 4/8/16 Ω in Lo-Z mode: 4 dBu
• Gain in Hi-Z mode: 35.2 dBu
• Gain in Lo-Z mode: 30.3 dB
• Level adjustment (per channel): Rear panel potentiometer, detented from -∞ to 0 dB

Connectors and Switches

• Input connectors (per channel): 3-pin detachable screw terminals, electronically balanced
• Output connectors (per channel): 2-pin detachable screw terminals
• High pass filter: Fixed at 35 Hz, switchable per channel
• Power control: Can be used to go between standby and ON, unit will also enter standby automatically after 20 min of inactivity and resume when signal is present
• 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: Standard IEC receptacle

Physical

• Dimensions (HWD): 17 x 19 x 10.9 inches
• Weight: 9.9 lbs
• Finish: Dark grey aluminium front and black steel chassis