Beyma 6NMFW Bass-midwoofer

The Beyma 6NMFW Bass-midwoofer is a high-performance driver engineered to deliver tight, controlled bass and articulate midrange response in compact loudspeaker designs. This 6.5-inch unit is ideally suited for use in two-way bookshelf speakers, small floor-standing enclosures, or as a dedicated midbass driver in multi-way systems, where its precision and efficiency shine. Whether you are building a high-fidelity home audio setup or a professional monitoring solution, the 6NMFW provides the foundation for a clean, dynamic soundstage.

Technically, this driver boasts a total Q factor (Qts) of just 0.26, which ensures excellent low-frequency control and transient response, making it ideal for sealed or ported enclosures. With a sensitivity of 93 dB SPL at 1 metre for 2.83V, it offers high efficiency, allowing for greater output from modest amplifier power. The 5 mm linear excursion (Xmax) and a displacement volume (Vd) of 68 cm³ contribute to its ability to produce authoritative bass without distortion. Additional features include a 4.9 ohm DC resistance (Re), a voice coil inductance of 0.3 mH, and a robust mechanical design with a mounting depth of 87 mm. The 145.3 mm cutout diameter and 172 mm bolt circle accommodate four fixing holes, simplifying installation. With its combination of low Qes (0.27) and high Qms (4.6), the Beyma 6NMFW offers a refined balance of electrical and mechanical damping, ensuring accurate, musical reproduction across the bass and midrange frequencies.