The FPX 4.400 is a very compact 4-channel amplifier with a power of 4x70 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)

Additional Information

Additional Information


AB Class amplifier - 4/3/2 channels

CEA power (4 ohms): 4x70 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 :


Mirroring Mode: (4CH/2CH)

Full range function

Protections: Short circuit / low impedance /

reversal of polarity / DC / power drop / heat protection

Dimensions (LxHxW):

1223⁄64x657⁄64x21⁄4" (314x175x57mm)

Weight: 8.16lbs (3.7kg)

TV TypeNo
VESA MountingNo
TV SizeNo
Cable LengthN/A
Free ShippingYes

FPX 4.800 4-/3-/2-Channel Class D Amplifier

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