Lab Gruppen E 4:2 400 Watt Amplifier with 2 Flexible Output Channels for Installation Applications

S$ 1,227.60
(S$ 1,227.60 excl GST)

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Key Features:

400 W amplifier carrying 2 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 2 x 200 W at constant voltage 70 V or low impedance (2, 4 and 8 Ohms) on any channel
Asymmetric channel loading allows mixing and matching loads with different impedance 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 redued 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 configuratin 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 fan 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

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E SERIES E 4:2
The E 4:2 has smart green credentials delivering low lifetime cost of ownership.
Energy Star Qualified
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.
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.
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.
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.

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
Weight
4.2 kg (9.3 lbs)

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

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For export (= shipments outside of Singapore) we do not charge GST. In this case, please refer to the prices excl GST.