Beyma 12WR400 Bass-midwoofer

The Beyma 12WR400 is a high-performance bass-midwoofer engineered to deliver exceptional clarity and authority across the low and mid frequency ranges. As part of Beyma’s renowned driver family, this 12-inch unit combines robust construction with refined acoustic design, making it an ideal choice for audiophiles and professional sound system builders alike.

This driver excels in a variety of applications, from high-fidelity home audio and studio monitoring to demanding live sound reinforcement and custom car audio installations. Its ability to reproduce both powerful, low-distortion bass and articulate midrange makes it particularly well-suited for two-way or multi-way speaker systems where accurate transient response and dynamic impact are critical.

Technically, the 12WR400 boasts a sensitivity of 97 dB SPL at 1 metre with 2.83V input, ensuring high output from modest amplifier power. The total Q factor of 0.27, combined with a mechanical Q of 5.6 and an electromagnetic Q of 0.28, indicates a well-damped, controlled response ideal for sealed or vented enclosures. With a maximum linear excursion of 6.3 mm and a displacement volume of 334 cm³, it delivers substantial low-frequency energy while maintaining low distortion. The 8-inch mounting hole pattern and 294.5 mm bolt circle diameter simplify installation, while the 131 mm depth accommodates compact cabinet designs. A DC resistance of 5.6 ohms and voice coil inductance of 1 mH further contribute to stable, reliable performance.

In summary, the Beyma 12WR400 offers a compelling blend of sensitivity, power handling, and sonic precision, making it a versatile and trustworthy component for serious audio projects.