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Product 487164

Lab Gruppen FP 2400Q 4-Channel Power Amplifier

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The fP 2400Q is a lightweight and space-saving 4-channel power amplifier, ideal for use in high quality touring sound systems as well as in demanding...Click To Read More About This Product

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OVERVIEW

Lab Gruppen amplifiers are engineered to amazing levels of sonic quality, performance, and reliability.

The fP 2400Q is a lightweight and space-saving 4-channel power amplifier, ideal for use in high quality touring sound systems as well as in demanding permanent installations. The fP 2400Q offers a diverse choice of applications, such as: multi-channel monitor systems, 4-channel reproduction, and compact amplification in active 2-, 3-, and 4-way systems.

The fP 2400Q makes possible the bridge connection of one or 2 of the 2 pairs of channels (channel A and B and/or channel C and D). It also features Lab Gruppen's unique power matching solution, the MLS switch, which offers endless combinations for solving most of the problems related to varying impedances and maximum power capacities of loudspeakers. The latest semiconductor technology is utilized in the new ferrite power (fP) amplifiers.

This, together with Lab Gruppen's proprietary copper cooling system, Intercooler, enhances the 2-ohm capacity. Two easily accessible dust filters on the front ensure a clean front-to-rear airflow. Additionally, a new Bi-phase wiring scheme also increases the capacity of the switch mode power supply. This extends the power bandwidth in the low end.

Regulated switch mode power supply
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.

Sophisticated protection circuitry
ALS short circuit protection uses Adaptive Limiting System to permits very high peak currents while keeps the amplifier within safe operation area. DC protection circuitry 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. A clip limiter prevents severely clipped waveforms from reaching the loudspeakers, while maintaining full peak power.

FEATURES
  • 4 x 370 watts @ 8 Ohms
  • 4 x 380 watts @ 4 Ohms
  • 4 x 500 watts @ 2 Ohms
  • (Measured just below clip level, with both channels driven)
  • Compact design, 2U high
  • Low weight, 8.6 kg (19 lbs)
  • Intercooler cooling system with front-to-rear airflow
  • MLS Switch: Lab.gruppen's unique power matching for different loads
  • Easily accessable dust filters
  • Improved low-end power bandwidth
  • Extruded front panel for increased stability
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 ohms four channels: 95W, 200W, 180W
  • 8 ohms four channels: 200W, 370W, 360W
  • 4 ohms four channels: 380W, 590 2), 700 3)W, 530W
  • 2 ohms four channels: 500 2), 650 3)W, N/A, N/A
  • 16 ohms bridged stereo:380W, 740W, 720W
  • 8 ohms bridged stereo: 760W, 1200 2), 1400 3)W, 1000W
  • 4 ohms bridged stereo: 1000 2), 1280 3)W, N/A, N/A
  • Max output voltage:
  • 8 ohms load: 40Vrms, 54Vrms
  • Peak voltage, no load: 60V, 81V
  • Distortion etc.:
  • THD 20Hz-20kHz and 1W to full power:0.07 %THD @ 1kHZ and ‚Äî1dB
  • Under clip: 0.02 %
  • DIM 30 at ‚Äî3dB under clip: 0.008 %
  • Hum and Noise: <-110 dB
    Channel separation @10kHz: 70 dB
  • Output impedance: 30 Ohms
  • Slew Rate: 60 V/s
  • Inputs:
  • Gain:32 dB
  • Impedance: 20 kohm
  • Common mode rejection: 50 dB
  • Front Panel:
  • Gain controls: (4) channel A, B, C, D 31 pos detent
  • Clip Indicator: (4) red LEDs
  • Output headroom indicators: (4x2) green, LED's Fast peak ‚Äîslow release
  • Protect Indicator: (4) yellow LEDs 80∞C at heatsink or >12Hz at full power or shorted output
  • On Indicator: (4) green LEDs, DC rail voltage for channel A, B, C and D
  • Rear Panel:
  • Input connectors: (4) Neutrik Combo XLR type, 3 pin & 1/4" jack
  • Output connectors: (4) Neutrik 4-pole Speakon connectors
  • Switches:
  • Clip limiter A and B: On-Off (switchable)
  • MLS switch: 0, -3 dB
  • Link-switch: A+B / B+C / C+D
  • Power: 230V version, 115V version
  • Operation voltage: 130V-265V, AC 65V‚Äî135V AC
  • Minimum start voltage: 175V, 95V AC
  • Full output power at 4ohms: 200V-265V, AC: 100 V‚Äî130 V AC
  • Peak inrush current (Soft start limited): 5A. 5A
  • Current Draw @ 4ohms & 230V
  • Quiescent power (no load): 1.4 Arms, 2.8 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 316 (12,4") D
  • Shipping Dimensions mm (inch):560 (22") W x 180 (7.1") H x 500 (19.7") D
  • Net Weight:8.6 kg (19 lbs)
  • Shipping Weight: 10.2 kg (22.5 lbs)
  • Max output voltage
  • 8 ohms load, MLS @ 0 dB 53 Vrms
  • Peak voltage, no load 77 V
  • Distortion etc.
  • THD 20Hz-20kHz and 1W to full power 0.3 %
  • THD @ 1kHZ and ‚Äî1dB under clip 0.01 % 0.0006%
  • DIM 30 at ‚Äî3dB under clip 0.008%
  • Hum and Noise <‚Äî110 dB
  • Channel separation @10kHz 70 dB
  • Output impedance 30m Ohms
  • Slew Rate 40 V/s
  • 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 LEDs Fast peak‚Äîslow release
  • Temp Indicator (2) yellow LEDs 80 degree C at heatsink
  • Protect indicator (2) yellow LEDs >12 kHz at full power or shorted 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
  • and 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‚ÄîOff(switchable)
  • Link-switch Ch.A‚ÄîB
  • Power 230 V version 115 V version
  • Operation voltage 130 V‚Äî265 V AC 65 V‚Äî135 V AC
  • Minimum start voltage 175 V 85 V AC
  • Full output power at 4 ohms 180 V‚Äî265 V AC 90 V‚Äî130 V AC
  • Peak inrush current (Soft start limited) 5 A 5 A
  • Current Draw @ 4ohms
  • Quiescent power (no load) 0.9 Arms 1.8 Arms
  • 1/8 offull power (‚Äî9 dB) 5 Arms 10 Arms
  • 1/3 offull power (‚Äî5 dB) 8 Arms 16 Arms
  • At full power (0 dB) 14 Arms 28 Arms
  • Net Dimensions
  • mm 483 W x 88 H x 287 D
  • inch 19" W X 3.5" H x 11.3"D
  • Shipping Dimensions
  • mm 560 W x 180 H x 500 D
  • 22" W x 7.1"H x 19.7 "D
  • Weight
  • Net 7.9kg (17lbs)
  • Shipping 9.6 kg (21.2 lbs)
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