FOCAL FPX 4.400 SQ AMPLIFIER

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 incorporating 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.

Versatile Channel Modes

Bridging channels 3 and 4 delivers 2 x 200W RMS at 4 Ohms — ideal for powering a subwoofer alongside your front speakers. The amplifier is also stable at 2 Ohms, providing up to 4 x 100W RMS for more demanding speaker loads.

Crossover and Signal Flexibility

Each pair of channels features an independent active crossover adjustable from 50Hz to 500Hz in high-pass, low-pass, or full-range mode. Channels 3 and 4 also include a bass boost for added low-end impact. A 2/4-channel input mode ensures compatibility with both factory and aftermarket head units.

Ideal Applications

• Full Focal front and rear speaker systems
• Front component speakers plus subwoofer in 3-channel mode
• Audiophile builds prioritising clarity, balance, and fidelity
• Factory or aftermarket radio integration via flexible input modes
• Custom installs in 4WDs, hatchbacks, utes, or sedans

Expert Supply and 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.