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New, the FA251 typically sits around GBP £300–£350 before delivery, so £287 used is a fair-to-good ask rather than an obvious bargain. It becomes especially attractive if it is complete, tested, and includes the wiring and connectors; an unverified unit would need a little price room.
This is a very capable compact module: one NCORE channel delivers 250 W into 4 ohms, with onboard DSP, FIR/IIR filtering, three presets, XLR/RCA/high-level inputs, and useful protection and standby functions. It is an excellent building block for an active subwoofer or one-way monitor, particularly when its DSP flexibility saves buying external processing. Before committing, confirm it is the correct 200–240 V version, that configuration over USB works, and that the terminal blocks, input hardware, and mounting details are present.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Hypex Electronics, founded in 1996 in the Netherlands, emerged from the live sound sector with plate amplifiers for loudspeakers before pivoting to hi-fi applications. Key innovator Bruno Putzeys developed the Universal class D (UcD) technology, patented through Philips, which propelled the company's early reputation for efficient, high-performance amplification. From modest origins supplying subwoofer modules and multichannel units with active crossovers, Hypex quickly gained traction among studio and audiophile manufacturers seeking superior class-D solutions.
The brand specializes in class-D power amplifier modules, power supplies, DSP solutions, and plate amplifiers, powering active speakers across hi-fi, high-end, and pro audio markets. Iconic lines like UcD and later NCore® deliver ultra-low distortion and exceptional efficiency, setting benchmarks for measured and subjective performance. While not producing complete speakers, turntables, DACs, headphones, or cables, Hypex modules form the backbone of systems from major OEM brands and enable DIY enthusiasts through Hypex Direct kits.
Hypex holds a commanding niche as a world-leading supplier in the high-end class-D segment, trusted by discerning audiophiles and professionals who demand uncompromising sound quality without traditional amp compromises. Its modules outperform legacy designs in efficiency and fidelity, positioning Hypex as the go-to for boutique builders and premium integrations, with production now in Malaysia to meet global demand.
See all Hypex listings on RADAR.
