Lab Gruppen E 20:2 – 2000 Watt Amplifier with 2 Flexible Output Channels

Description

The Lab Gruppen E 20:2 has smart green credentials delivering low lifetime cost of ownership.

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 Sense 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 optimises 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.

• 2000 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 for supreme green credentials and exceptionally low lifetime running costs
• 2 x 1000 Watts into 2 Ohms, 2 x 1,000 Watts into 4 Ohms, 2 x 1,000 Watts into 8 Ohms, 2 x 625 Watts into 16 Ohms, 2 x 1,000 Watts into Hi-Z 70 V, 2 x 1,000 Watts into Hi-Z 100 V
• 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 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 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 =+= Technical Specification
GENERAL
Number of powered channels
2
Total output all channels driven
2000 W
Max output voltage per channel
141 Vp / 100 Vrm
Max output current per channel
22.6 Arms
Asymmetric load operation
Units are capable of delivering extra power to one channel while sending significantly less to the other. See “single ch. max” below the “all ch. driven”
SENSITIVITY AND MAXIMUM OUTPUT POWER (all ch. driven)
2 Ω load
4 dBu: 1000 W @ 45 V mode
4 Ω load
3 dBu: 1000 W @ 70 V mode
8 Ω load
3 dBu: 1000 W @ 100 V mode
16 Ω load
4 dBu: 625 W @ 100 V mode
70 V load
4 dBu: 1000 W @ 70 V mode
100 V load
4 dBu: 1000 W @ 100 V mode
SENSITIVITY AND MAXIMUM OUTPUT POWER (single ch. max)
2 Ω load
4 dBu: 1000 W @ 45 V mode
4 Ω load
3 dBu: 2000 W @ 100 V mode
8 Ω load
4 dBu: 1250 W @ 100 V mode
16 Ω load
4 dBu: 625 W @ 100 V mode
70 V load
4 dBu: 1550 W @ 70 V mode
100 V load
4 dBu: 2000 W @ 100 V mode
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)
3 positions: A, B and C
Max output voltage, LIMIT switch pos A (70 V)
141 Vp / 100 Vrms
Max output voltage, LIMIT switch pos B
100 Vp / 70 Vrms
Max output voltage, LIMIT switch pos C (Lo-Z)
63 Vp / 45 Vrms
Gain in LIMIT switch pos A (70 V)
38.2 dB
Gain in LIMIT switch pos B
35.2 dB
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
Four fans, front to rear airflow, temperature controlled speed
POWER
Nominal voltage
100 – 240 VAC
Power consumption
600 W
Standby consumption
<2.5 W Mains connector Standard IEC receptacle PHYSICAL Dimensions (HWD) 44 x 483 x 417 mm (1.7 x 19 x 16.4") Weight 8.1 kg (17.8 lbs)