18"

Fi Car Audio - NEO 4.11 18" Subwoofer

Build time 1-2 weeksThe midpoint between the Delta and Omega lines: Comes with standard 4″ 4 layer and 4 spiders with the options for the Plus 4″ coils, extra spider, and gap option. Designed for modern monster applications in ported, 4th or 6th order...

Fi Car Audio - HC Series 18" Subwoofer

The HC Series signals a return to traditional ferrite motors. The HC Series is the latest in the progression of Fi subwoofers geared towards thundering daily drivers. Utilizing a favorite 3 stack ferrite magnet design using US steel cut on our water jet...

Trinity Audio Solutions B Series 18" 1500w RMS D2/D4

The Trinity Audio Solutions B series subwoofers are crafted to provide an exceptional bass experience for both novice and seasoned bass enthusiasts. Drawing on the knowledge and expertise gained from the M and H series, the B series subwoofers are...

Trinity Audio H Series 18" Subwoofer

The new H Series Subwoofers are the culmination of science and art, designed to exceed all expectations while providing an unmatched value. The H Series Subwoofers feature: Cast aluminum high excursion baskets with an optimized air flow design. FEA...

SoundQubed HDX4 Series Subwoofer 18"

HDX4 18 subwoofer: HDX subwoofers build upon the design of the HDC line in response to recent shifts in source material and the mainstream frequency tuning of our customers’ vehicles. Our team scrutinized all aspects of the HDC subs to improve...