Scan-Speak Illuminator 12MU/8731T00 4" Woofer

The Scan-Speak Illuminator 12MU/8731T00 4" Woofer represents a pinnacle of engineering for audiophiles seeking uncompromising sound quality in a compact form factor. Designed as a dedicated mid-bass and subwoofer driver, this unit excels in delivering precise, controlled low-frequency extension that belies its modest size. Its primary application lies in high-fidelity loudspeaker systems, particularly sealed-box enclosures, where its low total Q factor of 0.29 ensures tight, articulate bass response without boominess. Ideal for use in satellite speakers, centre channels, or as a dedicated mid-bass driver in multi-way designs, it brings studio-grade accuracy to both home and professional audio setups.

Technically, the Illuminator 12MU/8731T00 is a marvel of modern driver design. With a resonance frequency of 66 Hz and a maximum linear excursion of 3.4 mm, it achieves a remarkable balance between deep bass extension and low distortion. The 31.75 mm voice coil and 5.9 ohm DC resistance contribute to a sensitivity of 87.2 dB, while the electromagnetic Q factor of 0.31 and mechanical Q factor of 3.63 combine to deliver a total Q of 0.29—perfectly optimised for sealed enclosures. The equivalent volume of 5.66 litres further underscores its suitability for compact cabinets. Built as part of the renowned Scan-Speak Illuminator series, this 8-ohm driver handles up to 15 watts of continuous power, ensuring reliable performance in demanding applications. For those who demand the finest in mid-bass reproduction, this driver is an exceptional choice.