Lab Gruppen E 4:2 2-Channel Power Amplifier

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Lab Gruppen E 4:2 2-Channel Power Amplifier

Description

Details

The E Series incorporates the latest advances in Lab.gruppen quality and durability into this powerful, ultra-compact, and highly cost-effective two-channel amplifier.

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 IDEEA (IntelliDrive Energy Efficient Amplifier) technology. Based around a patented Class D output stage, IDEEA produces high power levels with very low distortion while drawing minimal mains current.

E Series also introduces a proprietary Rail Sensing Limiter (RSLTM) which greatly reduces signal clipping, ensuring high quality audio output at all times, with user configurable output thresholds of either Hi-Z (70 V) or Lo-Z (40 V peak). The highly innovative RSL switch circuit senses rail voltages and optimizes output for instantaneous load conditions. RSL settings also facilitate asymmetric loading of the channels, to optimize performance and efficiency from each individual unit - allowing the total available output power to be utilized unequally between the channels, and even allowing for mono use, with all power on a single channel. This makes it possible, for example, to drive a small sub on one channel and a number of 70 V distributed ceiling loudspeakers on the other.

Features

Features

High power density – 2 x 200 W in 1U.
Certified Energy Star 2.1 compliant.
Flexible – IntelliDrive delivers similar power per channel at 70 V, 2, 4, 8 and 16 ohms.
Asymmetric loading - Allows “mixing and matching” of loads with different impedances to maximize both overall system efficiency and inventory utilization.
IDEEATM output stage based on patented Class D technology.
High efficiency – Extremely low power consumption and heat output.
Auto-standby function - with power consumption < 1 W in standby state.
Exceptionally low cost of ownership over lifetime.
RSL switch - Circuit senses rail voltage and optimizes output for instantaneous load conditions.
Efficient cooling – One temperature-controlled fan.
Comprehensive circuit protection and fault indication.

Specification

Number of channels	2
Total output all channels driven	400 W
Peak output voltage per channel	100 V / 70 Vrms
Max. output current per channel	11 Arms
2 ohms (Lo-Z mode)	200 W
4 ohms (Lo-Z mode)	200 W
8 ohms (70 V mode)	200 W
16 ohms (70 V mode)	200 W
70 V (70 V mode)	200 W
8 ohms (Lo-Z mode)	100 W
16 ohms (Lo-Z mode)	50 W
THD 20 Hz - 20 kHz for 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
Limit and gain switch (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 70 V out in 70 V mode	4 dBu
Sensitivity for full power into 4/8/16 ohms in Lo-Z mode	4 dBu
Gain in 70 V mode	35.2 dBu
Gain in Lo-Z mode	27.2 dB
Level adjustment (per channel)	Rear p anel p otentiometer, d etented f rom - inf to 0 d B
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 35 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
Nominal voltage	100 - 240 VAC
Operating voltage	70 - 265 VAC
Standby consumption	<1 W
Finish	Dark grey aluminium front and black steel chassis
Dimensions	1.75" (44 mm) x 19" (483 mm) x 10.9" (276 mm)
Weight	8.8 lbs (4 kg)

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