FPX 4.400 SQ

In stock


The 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 12 23⁄64 x 6 57⁄64 x 2 1⁄4 ” (314x175x57mm)



  • AB Class 4/3/2 Channel amplifier – Dedicated to sound quality
  • Stable under 2 Ohms
  • Audiophile Sanken® Transistors
  • High-performance compact heat dissipation chassis
  • High power and current dynamic reserve



  • AB Class amplifier – 4/3/2 channels
  • CEA power (4 ohms): 4×70 Wrms
  • Maximum power (2 ohms): 4x100Wrms
  • Maximum power (bridged 4 ohms): 2x200Wrms
  • Bandwidth: 10Hz – 22KHz
  • Total harmonic distortion: 0.04%
  • SNR (1W/A): >77dBA
  • Configurable filters High Pass / Low Pass: 40Hz-5000Hz
  • Mirroring Mode: (4CH/2CH)
  • Full range function
  • Protections: Short circuit / low impedance / reversal of polarity / DC / power drop / heat protection
  • Dimensions (LxHxW): 1223⁄64×657⁄64×21⁄4″ (314x175x57mm)
  • Weight: 8.16lbs (3.7kg)
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FPX 4.400 SQ