Lab Gruppen FP3400 2-Channel Power Amplifier 3400W #2430 - USED

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Sale price$2,749.99 Regular price$5,493.99


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

The FP 3400 Power Amplifier from Lab Gruppen incorporates Lab.gruppen Class TD high efficiency amplifier design, which eliminates the heat and cooling problems found in other extreme high power amplifiers. The Class TD amplifiers maintain the same sonic quality as a traditional Class AB amplifiers. Besides the traditionally superb Lab.gruppen sonic performance, fP3400 offers a full line of important features:

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.

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.


  • 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
  • 2 x 1100 watts @ 8 Ohms
  • 2 x 1500 watts @ 4 Ohms
  • 2 x 1700 watts @ 2 Ohms
  • (Measured just below clip level, with both channels driven)
  • Compact design, 2U high
  • Low weight,10 kg (22 lbs)
  • MLS Switch: Lab.gruppen's unique power matching for different loads
  • 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
  • Bridged mono outputs in one Speakon connector
  • Extruded front panel for increased stability
Hum and Noise <-110 dB
Channel separation @10kHz 70 dB
Output impedance 60 mΩ
Impedance 20 kohm
Common mode rejection 50 dB
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
Operation voltage 130 V-265 V AC
Minimum start voltage 175 V
Full output power at 4ohms 180 V-265 V AC
MAX Output Power (Per Channel)
2 Ohms 1700 W
4 Ohms 1500 W
8 Ohms 1100 W

MAX Output Power 3400W
Product Weight 10 kg (22lbs)
Dimensions 483 (19”) W x 88 (3,5”) H x 347 (13,7”) D

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