Overview

E SERIES E 10:4

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

By maintaining very low current draw during operating cycles even at high output levels, and reduced power consumption during non-operational cycles, our Energy Star qualified products harness impeccable Lab Gruppen sonic performance and robust power output while meeting the rigorous efficiency requirements of current Energy Star certification standards.

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.

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

Optimize performance and efficiency from each individual unit - allowing the total available output power to be utilized unequally between the channels, or for mono use with all power on a single channel. Enabling you to drive a small sub on one channel and a number of 70 V distributed ceiling loudspeakers on the other.

Features

• 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

Specifications

General

• Number of powered channels: 4
• Total output all channels driven: 1000 W
• Max output voltage per channel: 100 Vp / 70 Vrms
• Max output current per channel: 14 Arms
• Asymmetric load operation: Units are capable of delivering extra power to one channel while sending significantly less to the other

Sensitivity and Maximum Output Power (all channels driven)

• 2 ohm load: N/R
• 4 ohm load: 1 dBu: 250 W @ Lo-Z mode
• 8 ohm load: 4 dBu: 250 W @ Lo-Z mode
• 16 ohm load: 4 dBu: 125 W @ Lo-Z mode / 3 dBu: 250 W @ 70 V mode
• 70 V load: 4 dBu: 250 W @ 70 V mode
• 100 V load: 4 dBu: 250 W @ 70 V mode into 100 V load tapped @ 500 W

Sensitivity and Maximum Output Power (single channel max)

• 2 ohm load: N/R
• 4 ohm load: 4 dBu: 500 W @ Lo-Z mode / 2 dBu: 750 W @ 70 V mode
• 8 ohm load: 4 dBu: 250 W @ Lo-Z mode / 4 dBu: 625 W @ 70 V mode
• 16 ohm load: 4 dBu: 125 W @ Lo-Z mode / 4 dBu: 310 W @ 70 V mode
• 70 V load: 4 dBu: 750 W @ 70 V mode
• 100 V load: 4 dBu: 750 W @ 70 V mode into 100 V load tapped @ 1500 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: >106 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

Limiters and Gain

• LIMIT switch (per channel): 2 positions: 70 V and Lo-Z
• Max output voltage, LIMIT switch pos A (70 V)*: 100 Vp / 70 Vrms
• Max output voltage, LIMIT switch pos B: N/A
• Max output voltage, LIMIT switch pos C (Lo-Z)*: 63 Vp / 45 Vrms
• Gain in LIMIT switch pos A (70 V)*: 35.2 dB
• Gain in LIMIT switch pos B: N/A
• Gain in LIMIT switch pos C (Lo-Z)*: 31.2 dB
• Level adjustment (per channel): Rear panel potentiometer, detented from -∞ 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, 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: Two fans, front to rear airflow, temperature controlled speed

Power

• Nominal voltage: 100 - 240 VAC
• Power consumption: 250 W
• Standby consumption: <1 W
• Mains connector: Standard IEC receptacle

Physical

• Dimensions (HWD): 44 x 483 x 381 mm (1.7 x 19 x 15")
• Weight: 6.7 kg (14.7 lbs)
• Finish: Dark grey aluminium front and black steel chassis