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Lab Gruppen FP6400

2 x 2300w Per Channel @ 4 ohms Power Amplifier

Product Code 21506

Retail Price
$4795.00
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$4,295.00
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Manufacturer
Lab Gruppen

The fP 6400 is a lightweight and space-saving power amplifier, ideal for use in high quality touring sound systems as well as in demanding permanent installations.

Heat and cooling are fundamental problems in extreme high power amplifiers such as the fP 6400. Already in 1990, Lab.gruppen patented a high efficiency amplifier, in fact an evolution of the Class D amplifier. Lab.gruppen therefore call it Class TD. It obtains the same high efficiency as Class D, but avoids its drawbacks. Class D has a power-amplifier topology using Pulse Width Modulation (PWM) to achieve high efficiency, but it needs a recovery filter between the output stage and the loudspeaker. Lab.gruppen's Class TD amplifiers do not need this filter and this is one reason why the Lab.gruppen Class TD obtains the same sonic quality as a traditional Class AB amplifier.

Besides the traditionally superb Lab.gruppen sonic performance, fP6400 offers a full line of important features:

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:
- 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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MPN: FP6400

2 x 1300 watts @ 8 ohm
2 x 2300 watts @ 4 ohm
2 x 3200 watts @ 2 ohm
(Measured just below clip level,
with both channels driven)

- Light weight and compact: only 10 kg (22 lbs), 2U high
- MLS Switch: Lab.gruppen's unique power matching for different loads

NEW FEATURES:

- Replaces the LAB 4000
- Multiple positions gain switch
- Intercooler cooling system with front-to-rear airflow and 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


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