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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.
Thiele-Small Parameters

Measured at small signal levels per AES standards

Electromechanical
Fs
32.1 Hz
Re
1.8 Ω
BL
21.2 T·m
Q Factors
Qts
0.33
Qes
0.34
Qms
8.39
Compliance & Mass
Vas
120 L
Mms
419 g
Sd
1210 cm²
Excursion
Xmax
34 mm
Sensitivity
SPL0
92.5 dB
Power Handling
Pe
2500 W

Parameters measured per AES2-1984 (r2003) standards. Small-signal parameters valid within linear operating region.

Compare Prices(1 retailer)
Sky High Car AudioAuthorized Dealer
Available
$1,000.01
Updated 11/10/2026
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Frequently Asked Questions

What is the Fi Car Audio NEO 3.9 18" Subwoofer?

The Fi Car Audio NEO 3.9 18" Subwoofer is car audio equipment made by Fi Car Audio.

How much does the Fi Car Audio NEO 3.9 18" Subwoofer cost?

See the recorded retailer prices in the "Where to Buy" section. Prices and availability can change; confirm both with the retailer before purchasing.

Where can I buy the Fi Car Audio NEO 3.9 18" Subwoofer?

The "Where to Buy" section lists retailers we have recorded carrying the Fi Car Audio NEO 3.9 18" Subwoofer. Check each listing's availability and confirm warranty coverage with the retailer.

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