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Focal FPX4.400SQ 4 Channel AB Class Premium Amplifier 4/3/2 Channel Modes

FPX4.400SQ
FPX4.400SQ
FPX4.400SQ
FPX4.400SQ
FPX4.400SQ
FPX4.400SQ
FPX4.400SQ
FPX4.400SQ

Focal FPX4.400SQ 4 Channel AB Class Premium Amplifier 4/3/2 Channel Modes

  • Stock Status: In Stock
  • Available QTY : 2
  • Brand: Focal
  • Model: FPX4.400SQ
  • EAN: 3544054750544
£359.95
Ex Tax: £359.95
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Audiophile And Versatile

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)

What Makes The Difference

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

Technical Specifications

  • 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 :
  • 40Hz-5000Hz
  • Mirroring Mode: (4CH/2CH)
  • Full range function
  • Protections: Short circuit / low impedance /
  • reversal of polarity / DC / power drop / heat protection
  • Dimensions (LxHxW):
  • 1223⁄64x657⁄64x21⁄4" (314x175x57mm)
  • Weight: 8.16lbs (3.7kg)

Audio Specifications

  • CEA power (4 ohms) 4x70 Watts RMS
  • Max. power (2 ohms) 4x100 Watts RMS
  • Max. power (4 ohms
  • bridged)
  • 2x200 Watts RMS
  • Bandwidth (-3dB) 10Hz – 22KHz
  • THD 0.04%
  • Crosstalk (1 KHz) > 54dB
  • SNR (1W/A) > 77dBA

General Features

  • Subsonic filter
  • High-pass/low-pass filter Configurable
  • High-pass/low-pass
  • 40Hz-5000Hz
  • Full-range function
  • Mirror mode
  • Standby current (A) 0.6 A
  • Protections
    • Short circuit/low impedance/reverse polarity/
    • DC/voltage drop/overheat
    • protection
  • Dimensions (LxWxH)
    • 1223⁄64x657⁄64x21⁄4"
    • (315x175x57mm)
  • Weight (kg) 8.16lbs (3.7kg)

We always recommends that you have your installation carried out by a qualified installer. Our experienced technical staff can take care of all kind of car audio upgrade jobs.

  • Car Stereo
  • Multimedia Audio Visual (Sat/Navs, Headrest Screens, Roof Screens etc.)
  • Speakers/ Subwoofers / Amplifiers
  • OEM Adapters Installation (DAB, iPod, iPhone, USB, Bluetooth, Aux)
  • Bluetooth Car Kit Installation
  • Car Security Alarms
  • Vehicle Tracking Systems
  • Reversing Camera / Parking Sensors
  • Dash Cameras


All installations are carried out at our London Installation center, Vehicle must be brought for installation.