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  Lab Gruppen FP3400 - Fully Regulated 2 Channel Class TD Amplifier
Lab Gruppen FP3400 - Fully Regulated 2 Channel Class TD Amplifier


 
List Price: $4,395.00
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Product Code : LABGRUPPEN-FP3400
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Description
 

fP 3400

High-Tech in Professional Amplification!

The fP 3400 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 many extreme high power amplifiers similar to the fP 3400.

In 1990, Lab.gruppen patented a high efficiency amplifier called fP 3400. This development was an evolutionary step past the Class D amplifier. Lab.gruppen call this unique step forward: Class TD. This stands for: Tracking Class  D. 

Class TD obtains the same high efficiency as Class D, while avoiding the main 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.

Key Features

  • 2 x 1100 watts @ 8 ?
    2 x 1500 watts @ 4 ?
    2 x 1700 watts @ 2 ?
    (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
  • Class TD design in flagship models (fP 6400 and fP 3400)

NEW FEATURES:

  • Replaces the LAB 2002
  • 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

Besides the traditionally superb Lab.gruppen sonic performance, fP3400 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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