BlieSMa M142A-6 Mid-range woofer

The BlieSMa M142A-6 Mid-range Woofer is a precision-engineered driver designed to deliver exceptional clarity and accuracy in the critical mid-band frequencies. As a dedicated midrange driver, it excels at reproducing vocals, instruments, and complex musical passages with remarkable detail and minimal coloration, making it an ideal choice for high-fidelity audio systems, studio monitors, and bespoke loudspeaker designs.

This driver is particularly well-suited for use in multi-way speaker configurations where a dedicated mid-range unit is required to bridge the gap between bass and treble drivers. Its low total Q factor of 0.3 ensures tight, controlled performance, while the high sensitivity of 94.5 dB SPL at 1 metre with 2.83V input allows for efficient power handling and dynamic response. The mechanical Q of 8.3 and electromagnetic Q of 0.31 contribute to a well-damped, accurate sound signature, with a maximum linear excursion of 1.85 mm ensuring clean output at moderate listening levels.

Technical specifications include a DC resistance of 5.4 ohms, a voice coil inductance of just 0.03 mH, and a mechanical loss factor of 0.54. The driver features a mounting hole diameter of 158 mm, a screw circle diameter of 169 mm, and a depth of 62 mm, with six fixing points for secure installation. The overall dimensions are 18 mm in height, and the cut-out diameter is 4.5 inches. With its robust construction and carefully tuned parameters, the M142A-6 is a superb choice for audiophiles and system builders seeking authentic mid-range reproduction.