{"product_id":"lab-gruppen-e-4-2-power-amplifier-400w-demo","title":"Lab Gruppen E 4:2 Power Amplifier 400W - DEMO","description":"\u003cp\u003eLab Gruppen E series amplifiers have been manufactured and designed for installations in retail, education, restaurants and offices, where high quality and high energy-efficiency is required. These Class-D amplifiers each have a temperature-controlled fan that turns off when only low-level signals are detected, helping the amplifier comply with Energy Star efficiency certifications.\u003c\/p\u003e\n\n\u003cp\u003eThe rear panel houses all input and output connectivity and setting controls, with three-pole detachable screw terminal block connectors for inputs and outputs The output connectors can accommodate cable of up to 4 mm square cross section. Attenuators with a range of infinity to 0dB can be manually adjusted to affect the channel gain, and a high-pass filter can be switched on\/off to insert a 50Hz filter before the output stage. A power button can be momentarily depressed to change the power state from standby to on with a multi-coloured LED indicator showing amber for automatic standby status, red for forced standby status, and green for power on. A single IEC power inlet provides 100-240VAC power to the amplifier.\u003c\/p\u003e\n\n\u003cp\u003eThe 1U high front panel is used for power amplifier and channel status indication. A bi-colour LED illuminates green when power is on and amber when the amplifier is currently in standby mode. A 'TEMP' LED flashes amber to indicate excessive temperature in the power supply section or output stages. When the temperature exceeds the 'danger' threshold, the LED turns to constant amber illumination and the amplifier self-mutes. Green LEDs, one per channel, indicate an input signal in excess of the signal present threshold and a second LED per channel illuminates when the amplifiers limiting stage is engaged.\u003c\/p\u003e\n\n\u003cp\u003eGeneral\u003c\/p\u003e\n\n\u003cp\u003eNumber of amplifier channels 2\u003c\/p\u003e\n\n\u003cp\u003eMax total output all channels driven 400 W\u003c\/p\u003e\n\n\u003cp\u003ePeak output voltage per channel 100 V \/ 70 Vrms\u003c\/p\u003e\n\n\u003cp\u003eMax. output current 11 Arms\u003c\/p\u003e\n\n\u003cp\u003eMax output power (all channels driven)\u003c\/p\u003e\n\n\u003cp\u003e2 ohms 200 W\u003c\/p\u003e\n\n\u003cp\u003e4 ohms 200 W\u003c\/p\u003e\n\n\u003cp\u003e8 ohms 200 W (requires the “70 V” mode for the RSL. “Lo-Z” gives 100 W)\u003c\/p\u003e\n\n\u003cp\u003e16 ohms 200 W (requires the “70 V” mode for the RSL, “Lo-Z” gives 50 W)\u003c\/p\u003e\n\n\u003cp\u003e70 V 200 W\u003c\/p\u003e\n\n\u003cp\u003e100 V Can deliver 200 W to a 100 V load tapped at 400 W\u003c\/p\u003e\n\n\u003cp\u003ePerformance\u003c\/p\u003e\n\n\u003cp\u003eTHD 20 Hz - 20 kHz at 1 W THD at 1 kHz and 1 dB below clipping Signal to Noise Ratio \u0026gt;112 dBA\u003c\/p\u003e\n\n\u003cp\u003eChannel separation (Crosstalk) at 1 kHz \u0026gt;70 dB\u003c\/p\u003e\n\n\u003cp\u003eFrequency Response 2 Hz - 40 kHz\u003c\/p\u003e\n\n\u003cp\u003eInput impedance 20 kOhm\u003c\/p\u003e\n\n\u003cp\u003eCommon Mode Rejection (CMR) 50 dB\u003c\/p\u003e\n\n\u003cp\u003eOutput impedance 25 mOhm\u003c\/p\u003e\n\n\u003cp\u003eGain, Sensitivity and Limiters\u003c\/p\u003e\n\n\u003cp\u003eLimit and gain switch defining limit and gain (per channel) 2 pos: Lo-Z and 70 V\u003c\/p\u003e\n\n\u003cp\u003eVPL for 70 V mode 100 V\u003c\/p\u003e\n\n\u003cp\u003eVPL for Lo-Z mode 40 V\u003c\/p\u003e\n\n\u003cp\u003eSensitivity for stated power into 4 Ohm in Lo-Z mode 4 dBu\u003c\/p\u003e\n\n\u003cp\u003eSensitivity for 70.7 V out in 70 V mode 4 dBu\u003c\/p\u003e\n\n\u003cp\u003eSensitivity for stated power into 2 Ohm in Lo-Z mode 1 dBu\u003c\/p\u003e\n\n\u003cp\u003eSensitivity for stated power into 8 Ohm in 70 V mode -0.9 dBu\u003c\/p\u003e\n\n\u003cp\u003eSensitivity for stated power into 16 Ohm in 70 V mode 2.1 dBu\u003c\/p\u003e\n\n\u003cp\u003eGain in 70 V mode 35.2 dB\u003c\/p\u003e\n\n\u003cp\u003eGain in Lo-Z mode 27.2 dB\u003c\/p\u003e\n\n\u003cp\u003eLevel adjustment (per channel) Rear panel potentiometer, from -inf to 0 dB\u003c\/p\u003e\n\n\u003cp\u003eConnectors and Buttons\u003c\/p\u003e\n\n\u003cp\u003eInput connectors (per ch.) 3 - pin detachable screw terminals, electronically balanced\u003c\/p\u003e\n\n\u003cp\u003eOutput connectors (per ch.) 2 - pin detachable screw terminals\u003c\/p\u003e\n\n\u003cp\u003eHigh pass filter Fixed at 50 Hz, switchable per channel\u003c\/p\u003e\n\n\u003cp\u003ePower control Can be used to go between standby and ON\u003c\/p\u003e\n\n\u003cp\u003eGPI (power control input) Contact closure type, 2-pin detachable screw terminal, controls the power state\u003c\/p\u003e\n\n\u003cp\u003eGPO (power state output) Contact closure type, 2-pin detachable screw terminal, for external monitoring of the power state\u003c\/p\u003e\n\n\u003cp\u003eCooling Single fan, front to rear airflow, no filter required, temperature controlled speed\u003c\/p\u003e\n\n\u003cp\u003ePower\u003c\/p\u003e\n\n\u003cp\u003eNominal voltage 100 – 240 VAC\u003c\/p\u003e\n\n\u003cp\u003eOperating voltage 70 – 265 VAC\u003c\/p\u003e\n\n\u003cp\u003eStandby consumption Mains connector IEC inlet\u003c\/p\u003e\n\n\u003cp\u003eDimensions\u003c\/p\u003e\n\n\u003cp\u003eDimensions W: 483 mm (19”), H: 44 mm (1 U), D: 276 mm (10.9”)\u003c\/p\u003e\n\n\u003cp\u003eWeight\u003c\/p\u003e\n\n\u003cp\u003eWeight 4.2 kg (9.3 lbs)\u003c\/p\u003e","brand":"Lab Gruppen","offers":[{"title":"Default Title","offer_id":58450881380616,"sku":"E42","price":440.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1057\/4076\/3400\/files\/e4f_b0d314d6-37ce-4556-91aa-016dac7c66af.png?v=1786930658","url":"https:\/\/musictoner.shop\/products\/lab-gruppen-e-4-2-power-amplifier-400w-demo","provider":"Musictoner","version":"1.0","type":"link"}