SB Acoustics SB17NAC35-4 6'' Aluminum Cone Woofer

The SB17NAC35-4 from SB Acoustics is a 6-inch aluminium cone woofer engineered for exceptional accuracy and low-distortion performance in the bass and midrange frequencies. As part of the acclaimed NAC series, this driver combines advanced materials with meticulous construction to deliver a natural, uncoloured sound that audiophiles and system builders will appreciate.

This versatile woofer excels in a variety of applications, including two-way bookshelf speakers, three-way designs, and dedicated subwoofer systems where precise midbass reproduction is essential. Its low resonance frequency of 32 Hz and generous linear excursion of 5.5 mm make it equally suited for sealed or ported enclosures, allowing for deep, controlled bass extension without sacrificing clarity in the critical midrange.

Technically, the SB17NAC35-4 features a 35 mm voice coil with an inductance of just 0.13 mH, ensuring excellent transient response and minimal distortion. The motor system is optimised with a Qts of 0.32, balancing efficiency and control, while a sensitivity of 90 dB (2.83 V/1 m) ensures compatibility with a wide range of amplifiers. The aluminium cone is both lightweight and rigid, contributing to the driver’s low moving mass and high mechanical Q (5.95) for articulate, detailed sound.

With a 4-ohm impedance and a DC resistance of 3.1 ohms, this woofer is straightforward to integrate into crossover networks. Whether you are building a high-fidelity home audio system or a professional studio monitor, the SB17NAC35-4 offers a compelling blend of performance and value.