FOCAL FPX 4.400 SQ AMPLIFIER

Focal Amplifier FPX 4.400 SQ 4-Channel Class AB Amplifier – Audiophile Power & Precision for Every Setup

The Focal FPX 4.400 SQ is a compact yet powerful 4-channel amplifier built for those who demand exceptional sound quality in their vehicle. Designed with audiophile-grade performance in mind, this Class AB amplifier delivers 4 x 70W RMS at 4 Ohms, making it ideal for powering front and rear speakers or a high-fidelity system with a subwoofer.

Its flexibility allows operation in 4-, 3-, or 2-channel mode, and its advanced active crossover network lets you fine-tune each pair of channels to suit your exact speaker configuration. Whether you’re building a detailed front stage, adding rear fill, or bridging channels for bass output, the FPX 4.400 SQ adapts with precision and control.

✅ Key Features:

• 🔊 Class AB amplifier with 4 x 70W RMS @ 4 Ohms

• 🔧 Bridged mode delivers 2 x 200W RMS @ 4 Ohms – ideal for powering subwoofers

• 🔁 Stable at 2 Ohms – up to 4 x 100W RMS for more demanding speakers

• 🎛️ Independent active crossovers per channel pair

  • Adjustable from 50Hz to 500Hz

  • High-pass, low-pass, or full-range modes

• 🔈 Bass boost on channels 3 & 4

• 🔌 2/4 channel input mode – works with factory or aftermarket head units

• 🎯 Compatible with a wide range of Focal speakers and subwoofers

• 🧱 Compact footprint for easy installation in tight spaces

🎯 Ideal For:

• Full Focal front + rear speaker systems

• Front components + subwoofer setup in 3-channel mode

• Audiophile builds prioritizing clarity, balance, and fidelity

• Use with factory or aftermarket radios thanks to flexible input modes

• Custom installs in 4WDs, hatchbacks, utes, or sedans

🛠️ Expert Supply & Installation – Melbourne

At Audio Visual Security, we offer professional installation of Focal amplifiers including the FPX 4.400 SQ. Whether you're upgrading your full speaker system or integrating this amp into a custom audio build, we ensure optimal performance, neat wiring, and vehicle-specific tuning.