Lab.gruppen LAB 1200C Brochure

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radio interference

Lab.gruppen LAB 1200C Brochure Manual pdf 3 page image

fi 1300CPower specifications: stereo 8 ohms 4 ohms 2 ohmsEIA at 1 kHz and 1% THD 350 W 650 W 900 Wu Cooling; Two proportional speed fansu Protection; Short circuit, DC, high temperature, turn on,VHF, over and under voltage and clip limitersu Dimensions in mm (inch); 483 (19")W2 88 (3.5")H2 310 (12.2")Du Weight; 8 kg (18 lbs)fi 1600Power specifications: stereo MLS 8 ohms 4 ohms 2 ohmsEIA at 1 kHz and 1% THD 4 430 W 840 W 1540 W*2 230 W 450 W 870 Wu Cooling; Two proportional speed fansu Protection; ALS™ short circuit protection, DC, high temperature, turn on,VHF, over and under voltage and clip limitersu Dimensions in mm (inch); 483 (19")W2 88 (3.5")H2 310 (12.2")Du Weight; 8 kg (18 lbs)fi 2002Power specifications: stereo MLS 8 ohms 4 ohms 2 ohmsEIA at 1 kHz and 1% THD 0 dB 1100 W 1900 W* 2900 W*–2 dB 650 W 1100 W 1400 W*–4 dB 350 W 680 W 1200 Wu Cooling; Two proportional speed fansu Protection; Short circuit, DC, high temperature, turn on,VHF, over and under voltage and clip limitersu Dimensions in mm (inch); 483 (19")W2 88 (3.5")H2 347 (13.7")Du Weight; 10 kg (22.1 lbs)fi 4000Power specifications: stereo MLS 8 ohms 4 ohms 2 ohmsEIA at 1 kHz and 1% THD 0 dB 1300 W 2100 W 3200 W*– 2 dB 820 W 1600 W 2200 W– 4 dB 520 W 1000W 2000 Wu Cooling; Two proportional speed fansu Protection; AFS (Adaptive Fuse Saver), short circuit, DC, high temperature, turn on,VHF, over and under voltage and clip limitersu Dimensions in mm (inch); 483 (19")W2 88 (3.5")H2 347 (13.7")Du Weight; 10 kg (22.1 lbs)Graph showing the RF emission from the LAB 1300C.Upper lines are the IEC-limits.Efficiency is also assured, and in thecase of the LAB 2002 and the LAB 4000,this is especially apparent; its power sup-ply draws only 4 kW and yet it produces221400 W. (In a conventional amplifierthis would yield only 22650 W – nearly3 kW are wasted as heat).Another feature is that the storagemedium for the energy is the transformercore. In all other topologies smoothingcapacitors are used on the primary sideof the switch transformer with limitedlife as a result.Minimum Load Switches (MLS™)Thanks to the regulated SMPS, themaximum power available for theoutput stages can be adjusted withoutincreased heat dissipation or efficiencyloss. This allows users to match theoutput power with the loudspeakerimpedance. MLS™ switches are availableon four SMPS models, the LAB 1200C,LAB 1600, LAB 2002 and the LAB 4000.Radio interferenceLab.Gruppen switch mode amplifierswere the first with low enough emis-sions, not to interfere with wirelessmicrophone systems. The LAB 1300Cwas the first professional switchmode amplifier to be approved to theEuropean EMC directive.All products have also been approvedfor immunity against electromagneticfields, high voltage flashes and radiointerference.* Continuous power on one channel driven orpeak power on both channels driven.(Thermal protection may occur at highcontinuous power.)** Not recommended selection.(Overcurrent protection may accour.)New!

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