SB Acoustics SB15NBAC30-4 5" Black Aluminum Cone Mid-bass

The SB Acoustics SB15NBAC30-4 is a 5-inch black aluminum cone mid-bass driver that delivers a refined and authoritative performance, engineered for those who demand precision in their audio systems. This driver excels in producing tight, controlled mid-bass with exceptional transient response, making it a superb choice for high-fidelity two-way or three-way loudspeaker designs. Its low total Q factor of 0.29 and resonance frequency of 33 Hz render it particularly well-suited for sealed enclosures, where it can achieve deep, articulate bass without coloration. For audiophiles and DIY enthusiasts, this unit also performs admirably in small to medium-sized vented cabinets, offering flexibility in system tuning.

Technically, the SB15NBAC30-4 features a rigid black aluminum cone that minimises breakup modes, ensuring clean midrange reproduction. The 30.48 mm voice coil and 3.1 ohm DC resistance contribute to efficient power handling, while the 0.12 mH inductance aids in maintaining linear frequency response. With a sensitivity of 88 dB and a maximum linear excursion of 5 mm, this driver balances output with control. The mechanical Q of 4.4 and electrical Q of 0.31 combine to deliver a well-damped, accurate sound. Whether for a dedicated mid-bass section or a full-range satellite, this SB Acoustics driver offers a compelling blend of engineering and sonic clarity.