Focal FPX 4.400 SQ 4 Channel Amplifier

Focal Car Sound Amplifier


Signature Car Sound, the Home of Focal on the Sunshine Coast


Focal FPX 4.400

SQ 4 Channel Amplifier


Focal FPX 1.1000

The FPX 4.400 SQ delivers 70 Watts RMS per channel and up to 200 Watts RMS a channel when running in the bridged 2-channel configuration. All of this from one of the most compact amplifier chassis on the market.


For an amplifier to provide high power and musicality, efficiency and heat dissipation are two essential qualities. In order to optimize these aspects, the Focal FPX 4.400 amplifier have been given a thick aluminum chassis. The distribution of the components was also carefully researched to optimize the cooling capacity of the chassis.

The careful selection of each 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 4×70 Watts RMS at 4 Ohms and a ClassAB amplifying technology the Focal FPX 4.400 is an ideal solution for a wide range of uses.

In bridged mode, it delivers 2×200 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 (4×100 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 40 to 5000 Hz: high-pass, low-pass or wideband. The 2-/4-channel input modes ensure compatibility with mid-range head units only equipped with a pair output lines.

The Focal FPX 4.400 is a very compact 4-channel amplifier with a power of 4×70 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 4.400 is the most “sound quality” model in this range. Thanks to its very comfortable 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 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 ABD amplifier
  • 2-/4-channel input modes
  • Stable at 2 Ohms
  • Active crossover for each pair of channels

The FPX 4.400 measures (314 x 175 x 57mm)


  • A compact and versatile amplifier
  • Optimised heat dissipation
  • Extremely versatile
  • Remarkable power/performance/price ratio

Signature Car Sound, your local Authorised Focal Car Sound Specialists, Stockists and Installation Centres  on the Sunshine Coast

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