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Fi Car Audio Subwoofers

Fi Car Audio is an American manufacturer based in Las Vegas, Nevada, founded by Scott Atwell (also the creator of RE Audio). Each subwoofer is custom-built in-house using CNC-machined US steel components with 10-14 day build times—no mass production. Their BTL (Blow Through Loud) series dominates daily driver and SPL competition alike, while the Neo series offers refined sound quality with extreme power handling. In August 2024, Fi transitioned to new ownership including leaders from Sky High Car Audio, Limitless Lithium, and SoundQubed, with Scott Atwell remaining as lead designer. Fi subwoofers are built by competitors, for competitors.

Alpha Series 10 Subwoofer

Alpha Series 10 Subwoofer

The Fi Car Audio Alpha Series 10 Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

Alpha Series 12 Subwoofer

Alpha Series 12 Subwoofer

The Fi Car Audio Alpha Series 12 Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

Audio - Bl? - V1 Or V2? 12" Subwoofer

Audio - Bl? - V1 Or V2? 12" Subwoofer

The Fi Car Audio Audio - Bl? - V1 Or V2? 12" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

Fi Car Audio - MT Series 18" Subwoofer D1 Ohm Hybrid Ring Terminals Make it a Plus?:Yes + $100 No Yes - Two Stage + $250 (Illusion

Fi Car Audio - MT Series 18" Subwoofer D1 Ohm Hybrid Ring Terminals Make it a Plus?:Yes + $100 No Yes - Two Stage + $250 (Illusion

HC Series 12" Subwoofer

HC Series 12" Subwoofer

The Fi Car Audio HC Series 12" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

HC Series 18" Subwoofer

HC Series 18" Subwoofer

The Fi Car Audio HC Series 18" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

MT Series 18" Subwoofer

MT Series 18" Subwoofer

The Fi Car Audio MT Series 18" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

NEO 3.5 15" Subwoofer

NEO 3.5 15" Subwoofer

The Fi Car Audio NEO 3.5 15" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

Neo 3.5 Series 12" Subwoofer

Neo 3.5 Series 12" Subwoofer

The Fi Car Audio Neo 3.5 Series 12" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

NEO 3.7 18" Subwoofer

NEO 3.7 18" Subwoofer

The Fi Car Audio NEO 3.7 18" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

NEO 3.9 15" Subwoofer

NEO 3.9 15" Subwoofer

The Fi Car Audio NEO 3.9 15" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

NEO 3.9 18" Subwoofer

NEO 3.9 18" Subwoofer

The Fi Car Audio NEO 3.9 18" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

NEO 4.11 12" Subwoofer

NEO 4.11 12" Subwoofer

The Fi Car Audio NEO 4.11 12" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

NEO 4.11 15" Subwoofer

NEO 4.11 15" Subwoofer

The Fi Car Audio NEO 4.11 15" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

NEO 4.11 18" Subwoofer

NEO 4.11 18" Subwoofer

The Fi Car Audio NEO 4.11 18" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

NEO 4.9 12" Subwoofer

NEO 4.9 12" Subwoofer

The Fi Car Audio NEO 4.9 12" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

NEO 4.9 18" Subwoofer

NEO 4.9 18" Subwoofer

The Fi Car Audio NEO 4.9 18" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

Xv4 Series 10" Subwoofer

Xv4 Series 10" Subwoofer

The Fi Car Audio Xv4 Series 10" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

XV4 Series 12" Subwoofer

XV4 Series 12" Subwoofer

The Fi Car Audio XV4 Series 12" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

XV4 Series 15" Subwoofer

XV4 Series 15" Subwoofer

The Fi Car Audio XV4 Series 15" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

XV4 Series 18" Subwoofer

XV4 Series 18" Subwoofer

The Fi Car Audio XV4 Series 18" Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

BTL3 12" 1 Ohm Subwoofer

BTL3 12" 1 Ohm Subwoofer

Legacy

The Fi Car Audio BTL3 12" 1 Ohm Subwoofer is a high-performance subwoofer. Designed for deep bass reproduction and high SPL output.

1 build
Alpha Series 15

Alpha Series 15

Legacy

Fi Car Audio subwoofer designed for extreme SPL competition and high-output applications. Hand-built in the USA with premium components and heavy-duty motor structures. Engineered for maximum power handling and deep bass reproduction.

HC Series 15" Subwoofers

HC Series 15" Subwoofers

Legacy

Fi Car Audio subwoofer designed for extreme SPL competition and high-output applications. Hand-built in the USA with premium components and heavy-duty motor structures. Engineered for maximum power handling and deep bass reproduction.

MT Series 15" Subwoofer

MT Series 15" Subwoofer

Legacy

Fi Car Audio subwoofer designed for extreme SPL competition and high-output applications. Hand-built in the USA with premium components and heavy-duty motor structures. Engineered for maximum power handling and deep bass reproduction.

NEW SP3v2 Subwoofer

NEW SP3v2 Subwoofer

Legacy

Fi Car Audio subwoofer designed for extreme SPL competition and high-output applications. Hand-built in the USA with premium components and heavy-duty motor structures. Engineered for maximum power handling and deep bass reproduction.

NEW SP4v3 Subwoofer

NEW SP4v3 Subwoofer

Legacy

Fi Car Audio subwoofer designed for extreme SPL competition and high-output applications. Hand-built in the USA with premium components and heavy-duty motor structures. Engineered for maximum power handling and deep bass reproduction.

Recone - Team V1/V2/V3 18" Subwoofer

Recone - Team V1/V2/V3 18" Subwoofer

Legacy

Fi Car Audio subwoofer designed for extreme SPL competition and high-output applications. Hand-built in the USA with premium components and heavy-duty motor structures. Engineered for maximum power handling and deep bass reproduction.

Recone - Xv4 Series 10" Subwoofer

Recone - Xv4 Series 10" Subwoofer

Legacy

Fi Car Audio subwoofer designed for extreme SPL competition and high-output applications. Hand-built in the USA with premium components and heavy-duty motor structures. Engineered for maximum power handling and deep bass reproduction.