Name: Lab Gruppen E5:4 500W E-Series Installation Amplifier
Brand: Lab Gruppen
SKU: E5:4_US1
Price: 1599 USD
Availability: InStock

Description

The Lab Gruppen E5:4 500W E-Series Installation Amplifier is a feature-rich solution for professional audio installations. This amplifier is designed to deliver exceptional performance, flexibility, and energy efficiency, making it a top choice for mixed A/V installations.

HIGHLIGHTS

Power Output:
4 x 125W channels, configurable for constant voltage (70/100V) or low impedance (2, 4, 8, and 16 Ohms)
Energy Efficiency:
Energy Star certified, with low power consumption and minimal heat generation
Asymmetric Channel Loading:
Allows mixing and matching loads with different impedances for optimized system efficiency
Amplifier Technology:
IntelliDrive Energy Efficient Amplifier (IDEEA) technology, a proprietary Class-D design for high performance and low distortion
Rail Sensing Limiter (RSL):
Reduces signal clipping and optimizes output for varying load conditions
Auto-Standby and Power-On:
Automatically reduces power consumption to below 1W during idle periods
Cooling System:
Temperature-controlled fans with front-to-back airflow for efficient cooling
User-Friendly Controls:
Per-channel attenuation knobs, signal LEDs, and a high-pass filter (50 Hz) selectable via rear panel switches
Durable Build:
Compact 1 rack unit form factor with an aluminum front panel, designed for durability and ease of installation
Connectivity:
Balanced analog inputs and outputs on detachable screw terminals, along with a GPIO connector for system integration
Fail-Safe Protection:
Comprehensive circuit protection ensures reliable operation under challenging conditions

SPECIFICATION

General

Number of amplifier channels	4
Total output all channels driven	500 W
Peak output voltage per channel	100 V / 70 Vrms
Max. output current	9.9 Arms

Max output power (all channels driven)

2 ohms	N.R.
4 ohms	125 W
8 ohms	125 W
16 ohms	125 W (requires the “70 V” mode for the RSL, “Lo-Z” gives 63 W)
70 V	125 W
100 V	Can deliver 125 W to a 100 V load tapped at 250 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	44.7 V
Sensitivity for stated power into 8 Ohm in Lo-Z mode	4 dBu
Sensitivity for 70.7 V out in 70 V mode	4 dBu
Sensitivity for stated power into 4 Ohm in Lo-Z mode	1 dBu
Sensitivity for stated power into 16 Ohm in 70 V mode	0 dBu
Gain in 70 V mode	35.2 dB
Gain in Lo-Z mode	28.2 dB
Level adjustment (per channel)	Rear panel potentiometer, from -inf 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
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-rear airflow, temperature controlled speed