Beyma 12G40 Bass-midwoofer

The Beyma 12G40 Bass-midwoofer represents a masterful blend of power and precision, engineered to deliver exceptional performance in demanding audio environments. This high-sensitivity driver excels at reproducing both deep bass and articulate midrange frequencies, making it an ideal choice for professional sound reinforcement systems, high-fidelity home audio setups, and custom loudspeaker designs where clarity and impact are paramount.

With a remarkable sensitivity of 97 dB SPL at 1 metre with 2.83V, the 12G40 ensures efficient power handling and impressive output even with modest amplification. Its robust construction features a 304.8 mm nominal diameter and a maximum linear excursion (Xmax) of 7 mm, allowing for substantial air movement and controlled low-frequency reproduction. The driver’s total Q factor (Qts) of 0.3, combined with a low electrical Q (Qes) of 0.3 and a high mechanical Q (Qms) of 11.6, indicates excellent damping and transient response, suitable for both sealed and ported enclosures. The 2.1 mH voice coil inductance and 6 ohm DC resistance contribute to stable performance across the frequency range.

This woofer’s 371 cm³ displacement volume (Vd) and carefully engineered suspension system, with mechanical losses (Rms) of 1.5, ensure reliable operation under sustained high-power conditions. Whether deployed in live sound reinforcement, studio monitoring, or high-end home theatre systems, the Beyma 12G40 delivers the authoritative, articulate bass and midrange that discerning listeners demand.