Dayton Audio SIG150-4 Mid-range Woofer

The Dayton Audio SIG150-4 5.25-inch Signature Series Woofer delivers powerful, accurate bass with exceptional clarity, making it an ideal choice for audiophiles seeking to elevate their car audio or home theatre systems. This 4-ohm woofer excels in reproducing mid-bass frequencies with precision, ensuring every note from kick drums to bass guitars is rendered with tight, controlled authority. Whether you are upgrading factory speakers or building a custom soundstage, this driver integrates seamlessly into sealed or ported enclosures to provide a rich, immersive listening experience.

Engineered for performance, the SIG150-4 features an aluminium cone that offers outstanding rigidity while remaining lightweight, minimising cone breakup and distortion even at high output levels. The copper voice coil ensures efficient heat dissipation and low inductance (Le: 0.35 mH), contributing to rapid transient response and detailed sound reproduction. With a sensitivity of 91.1 dB (1m/2.83V) and a total Q factor (Qts) of 0.49, this woofer balances efficiency and control, while the 4 mm linear excursion (Xmax) allows for substantial air movement. The robust construction includes a 5.2-inch mounting cutout and six screw holes for straightforward installation, with a mounting depth of just 67 mm to fit compact spaces. Backed by Dayton Audio’s reputation for quality, the SIG150-4 delivers reliable, low-distortion bass that transforms your audio system.