FPX 4.800


4-Channel D Class Amplifier 4 x 185W


The FPX 4.800 is a very compact 4-channel amplifier with a power of 4×120 Watts RMS at 4 Ohms. Offering a 4-/3-/2-channel mode, stable at 2 Ohms and equipped with an active crossover for each pair of channels, the FPX 4.800 is the most versatile model in this range. Thanks to its very high power, this is the ideal amplifier for powering front and rear speaker drivers, or for hi-fi installations with a 2-way kit in the front and a subwoofer. The 2-/4-channel input modes ensure compatibility with head units only equipped with a pair output lines. The high power and musicality of this amplifier will ensure you get the best out of your high-end speaker drivers from our Performance line.

  • 4-/3-/2-channel Class D amplifier
  • 2-/4-channel input modes
  • Stable at 2 Ohms
  • Active crossover for each pair of channels


For an amplifier to provide high power and musicality, efficiency and heat dissipation are two essential qualities. In order to optimise these aspects, FPX amplifiers have been given a thick aluminum chassis.

The distribution of the components on the motherboard was also carefully researched to optimise the cooling capacity of the chassis.

The careful selection of each Class D component (switching power supply, oversized toroidal transformers and high-quality capacitors) has made it possible to create powerful but ultra-compact amplifiers offering excellent musicality.


Thanks to its 4×120 Watts RMS at 4 Ohms and its compact chassis barely bigger than half a page of A4 paper, the FPX 4.800 is an ideal solution for a wide range of uses.

In bridged mode, it delivers 2×370 Watts RMS at 4 Ohms, enabling it to power a significant subwoofer channel with channels 3 and 4. It is also stable at 2 Ohms (4×185 Watts RMS) so it can also be used for powering different types of speaker drivers. In order to perfectly power the speaker drivers, each pair of channels is equipped with an adjustable active crossover from 50 to 500 Hz: high-pass, low-pass or wideband. Channels 3 & 4 are equipped with bass correction. The 2-/4-channel input modes ensure compatibility with mid-range head units only equipped with a pair output lines.


  • An audiophile and versatile amplifier
  • Optimized heat dissipation
  • Extremely versatile
  • Remarkable power/performance/price ratio


Amplifier Info (Car)

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Technical Specifications:

Type of Amplifier: D Class
Channels: 4
Bandwidth (-3dB) 10Hz – 20KHz
Power Output: 120 Watt per channel @ 4 Ohm
185 Watt per channel @ 2 Ohm                                                                370 Watt per channel @ 4 Ohm Bridged
THD: 0.01%
Mirroring Mode (4CH/2CH)
Crossover (HP/LP) Selectable 50Hz – 500Hz
Channel Separation (1KHz) > 55dB
SNR (1W/A) > 76dBA
Standby consumption (ON) / Consumption OFF 1.1A
Protections Short circuit / low impedance / reverse polarity / DC / voltage drop / overheat protection
Line Pre-Out: N/A
Suggested Fuse: 60A (Internal)
Net Weight 2 Kg
Dimensions (L x W x H): 237 x 132 x 53mm