18"

Sky High Car Audio BMX Series 18" Subwoofer

Sky High Car Audio FXXL Series 18" Subwoofer

Sky High Car Audio FMX Series 18" Subwoofer

Sky High Car Audio FMX Series Subwoofers Available in 6.5” – 18” (excludes 10”) D1/D2 Ohm Options FMX: Forged to Perform. Built to Endure. 

Fi Car Audio - MT Series 18" Subwoofer

*Currently built to order with up to a 4 week lead time depending on selected options.  The 2022 MT Series of Fi subwoofers is designed to meet the needs of the serious competitor and and monster...

Sky High Car Audio FXB Series 18" Subwoofer

Fi Car Audio - XV4 Series 18" Subwoofer

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Fi Car Audio - HC Series 18" Subwoofer

*Currently built to order with up to a 4 week lead time depending on selected options.  The HC Series signals a return to traditional ferrite motors. The HC Series is the latest in the progression...

Fi Car Audio - NEO 3.5 18" Subwoofer

*Currently built to order with up to a 4 week lead time depending on selected options.  Comparable to the older Q series drivers. Great SQ (especially with full cool/IND options. standard 2 spider,...

Fi Car Audio - NEO 4.7 18" Subwoofer

*Currently built to order with up to a 4 week lead time depending on selected options.  New cooling and inductance features that are set up in stages. The first stage is a machined aluminum pole...

Fi Car Audio - NEO 3.7 18" Subwoofer

*Currently built to order with up to a 4 week lead time depending on selected options.  ***For custom options (Carbon Fiber Cone Upgrade, Black Neo Upgrade, Powder Coated Parts, and Dust Cap Logo...

Fi Car Audio - NEO 4.11 18" Subwoofer

*Currently built to order with up to a 4 week lead time depending on selected options.  The midpoint between the Delta and Omega lines: Comes with standard 4″ 4 layer and 4 spiders with the options...

Fi Car Audio - NEO 4.9 18" Subwoofer

*Currently built to order with up to a 4 week lead time depending on selected options.  Comparable to SP4+ or Team series drivers depending on coil option. Comes with standard 4″ 4 layer and 4...