Pro Audio Systems

• Technical Specifications

• MAX OUTPUT POWER 1)
• EIA at 1 kHz and 1% THD FTC 20-20kHz @0.1%THD
• MLS switch -3 dB 0 dB Full 0 dB Full
• 16 Ω per channel 110 W 215 W 210 W
• 8 Ω per channel 240 W 430 W 420 W
• 4 Ω per channel 430 W 840 W 800 W
• 2 Ω per channel 870 W 1200 2), 1540 3) W 1175 W
• 16 Ω bridged 480 W 860 W 840 W
• 8 Ω bridged 870 W 1680 W 1600 W
• 4 Ω bridged 1740 W 2400 2), 3000 3) W 2350 W
• Max output voltage
• 8 ohms load 45 Vrms 59 Vrms
• Peak voltage, no load 65 V 85 V
• Distortion etc.
• THD 20Hz-20kHz
• and 1W to full power 0,04 %
• THD @ 1kHZ and –1dB
• under clip 0,01 %
• DIM 30 at –3dB under clip 0,008 %
• Hum and Noise <-110 dB
• Channel separation @10kHz 70 dB
• Output impedance 30 mΩ
• Slew Rate 60 V/µs
• Inputs
• Gain, selectable [dB] 20, 23, 26, 29,
• 32, 35, 38, 41
• Impedance 20 kohm
• Common mode rejection 50 dB
• Front Panel
• Gain controls (2) channel A, B 31 pos detent
• Clip Indicator (2) red LEDs
• Output headroom indicators (10) green LED’s Fast peak –slow release
• Temp Indicator (2) yellow LEDs 80°C at heatsink
• VHF indicator (2) yellow LEDs <12kHz at full power or shortened output
• On Indicator (2) green LEDs DC rail voltage for channel A and B
• Rear Panel
• Input connectors (2) Neutrik Combo XLR type, 3 pin & 1/4” jack
• Link connector (2) XLR type, 3 pin male
• Output connectors (2) Neutrik 4-pole Speakon connectors
• Switches
• Clip limiter A and B On-Off (switchable)
• MLS switch 0, -3 dB
• Link-switch Ch.A-B
• Power 230 V version 115 V version
• Operation voltage 130 V-265 V AC 65 V – 135 V AC
• Minimum start voltage 175 V 95 V AC
• Full output power at 4ohms 180 V-265 V AC 90 V – 130 V AC
• Peak inrush current (Soft start limited) 5 A 5 A
• Current Draw @ 4ohms & 230V
• Quiescent power (no load) 1 Arms 2 Arms
• 1/8 of full power (-9dB) 6 Arms 12 Arms
• 1/3 of full power (-5dB) 9 Arms 18 Arms
• At full power (0 dB) @1 kHz 1% THD 16 Arms 32 Arms
• Net Dimensions mm (inch) 483 (19”) W x 88 (3,5”) H x 347 (13,7”) D
• Shipping Dimensions mm (inch) 560 (22”) W x 180 (7.1”) H x 500 (19.7”) D
• Net Weight 8 kg (18 lbs)
• Shipping Weight 9.6 kg (21.2 lbs)
• Approvals CE Emission EN 55 103-1, E3
• Immunity EN 55 103-2, E3, with S/N below 1% at normal operation level
• Safety EN 60 065, class I

• Features

• 2 x 430 watts @ 8 Ω
  
• 2 x 840 watts @ 4 Ω
  
• 2 x 1200 watts @ 2 Ω
  
• (Measured just below clip level, with both channels driven)
  
• Light weight and compact: only 8 kg (18 lbs), 2U high
  
• MLS™ Switch: Lab.gruppen’s unique power matching for different loads
  
• New features
  
• Replaces the LAB 1600
  
• Multiple positions gain switch
  
• Easily accessible dust filters
  
• Improved low-end power bandwidth
  
• Link connector with XLR-type connector
  
• Extruded front panel for increased stability
  
• Bridged mono outputs in one SpeakOn connector
  
• Besides the traditionally superb Lab.gruppen sonic performance, there is a full line of features to make the fP family functional in all situations from installation to high performance live sound systems:
  
• Regulated switch mode power supply
  
• Today there are many lightweight, switch-mode amplifiers in the market. However, the unique Lab.gruppen switch-mode power supply technology offers a number of essential advantages that make it superior to other and seemingly similar power supply designs. The most important features are the
  
• regulated power supply and the extreme power efficiency. The regulated power supply easily deals with a very high variation in the AC mains voltage: it can drop by up to 20% below its nominal level - e.g. to 180 V instead of 230 V – without any problem. Perhaps even greater benefits result from the extreme efficiency of Lab.gruppen amplifiers: only a fraction of the energy from the AC mains is turned into heat.
  
• A regulated power supply also presents some other sonic advantages, such as better cone control and the same fast response as a conventional power supply.
  
• Multiple positions Gain switch
  
• To meet the demands for a flexible gain structure in the system, Lab.gruppen offers a multiple position gain switch. The maximum amplifier gain can be set to all industry standards: 20, 23, 26, 29, 32, 35, 38 and 41 dB.
  
• Sophisticated protection circuitry, combining:
  
• ALS™ short circuit protection; the Adaptive Limiting System permits very high peak currents, but keeps the amplifier within the Safe Operation Area.
  
• DC protection; protects against infrasonic signals
  
• VHF protection; protects the loudspeakers against strong very high frequency non-musical signals above the audible range
  
• Thermal protection; prevents the amplifier from being overheated. The protection indicators on the front panel are switched on, as a warning, before the protection process is initiated
  
• AC protection; shuts down the power supply if the line voltage is outside the operating voltage
  
• Clip limiter; prevents severely clipped waveforms from reaching the loudspeakers, whilst maintaining full peak power
  

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