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Focal FPX 4.400 SQ 4 Channel Amplifier

SKU FPX4.400SQ
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$769.00 $869.00

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Focal has been creating benchmark acoustic equipment since 1979 for various high fidelity markets such as home audio loudspeakers, headphones, car speaker drivers and monitoring loudspeakers.
Focal
$769.00 $869.00
$769.00

The Focal FPX 4.400 SQ 4 Channel Amplifier 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.

Main Features:

  • High performance compact heat dissipation chassis
  • High power and current dynamic reserve
  • Audiophile Sanken® Transistors
  • 4-/3-/2-channel Class ABD amplifier – Dedicated to sound quality
  • 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 ” (314 x 175 x 57mm).
Fpx 4.400 Sq Image4

Optimised Heat Dissipation

For an amplifier to provide high power and musicality, efficiency and heat dissipation are two essential qualities. In order to optimize these aspects, FPX amplifiers 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.

Extremely Versatile

Thanks to its 4×70 Watts RMS at 4 Ohms and a ClassAB amplifying technology the 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.

Fpx 4.400 Sq Image3

Specifications

Weight
3.7 kg
Dimensions
31.5 × 17.5 × 5.7 cm
availability

Online, Store

Model

FOCAL FPX 4.400 SQ

Audio Specifications

CEA power (4 ohms): 4 x 70 Watts RMS
Max. power (2 ohms): 4 x 100 Watts RMS
Max. power (4 ohms bridged): 2 x 200 Watts RMS
Bandwidth (-3dB): 10Hz – 22KHz
THD: 0.04%
Crosstalk (1 KHz): > 54dB
SNR (1W/A): > 77dBA

General Features

Configurable filters High Pass / Low Pass: 40Hz-5000Hz
Full-range function: Yes
Mirror mode: Yes
Standby current (A): 0.6 A
Protections: Short circuit/low impedance/reverse polarity/DC/voltage drop/overheat protection

The Focal FPX 4.400 SQ 4 Channel Amplifier 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.

Main Features:

  • High performance compact heat dissipation chassis
  • High power and current dynamic reserve
  • Audiophile Sanken® Transistors
  • 4-/3-/2-channel Class ABD amplifier – Dedicated to sound quality
  • 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 ” (314 x 175 x 57mm).
Fpx 4.400 Sq Image4

Optimised Heat Dissipation

For an amplifier to provide high power and musicality, efficiency and heat dissipation are two essential qualities. In order to optimize these aspects, FPX amplifiers 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.

Extremely Versatile

Thanks to its 4×70 Watts RMS at 4 Ohms and a ClassAB amplifying technology the 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.

Fpx 4.400 Sq Image3

Specifications

Weight
3.7 kg
Dimensions
31.5 × 17.5 × 5.7 cm
availability

Online, Store

Model

FOCAL FPX 4.400 SQ

Audio Specifications

CEA power (4 ohms): 4 x 70 Watts RMS
Max. power (2 ohms): 4 x 100 Watts RMS
Max. power (4 ohms bridged): 2 x 200 Watts RMS
Bandwidth (-3dB): 10Hz – 22KHz
THD: 0.04%
Crosstalk (1 KHz): > 54dB
SNR (1W/A): > 77dBA

General Features

Configurable filters High Pass / Low Pass: 40Hz-5000Hz
Full-range function: Yes
Mirror mode: Yes
Standby current (A): 0.6 A
Protections: Short circuit/low impedance/reverse polarity/DC/voltage drop/overheat protection