XV4 Series 18" Subwoofer

Name: XV4 Series 18" Subwoofer
Brand: Fi Car Audio
Availability: InStock

Home/Equipment/Subwoofers/Fi Car Audio/XV4 Series 18" Subwoofer

Learn what Fs, Qts, Vas, and other specs mean

Thiele-Small Parameters

Where to Buy

Updated 1/27/2026

Search for this product on Amazon

Price and availability may vary. Click to verify current pricing.

Frequently Asked Questions

What is the Fi Car Audio XV4 Series 18" Subwoofer?

The Fi Car Audio XV4 Series 18" Subwoofer is a car audio subwoofer made by Fi Car Audio. View full specifications and where to buy on this page.

How much does the Fi Car Audio XV4 Series 18" Subwoofer cost?

The Fi Car Audio XV4 Series 18" Subwoofer typically sells for around $450 depending on the retailer and variant. Check the "Where to Buy" section for current pricing from authorized dealers.

Where can I buy the Fi Car Audio XV4 Series 18" Subwoofer?

You can purchase the Fi Car Audio XV4 Series 18" Subwoofer from authorized dealers listed in the "Where to Buy" section on this page. We recommend buying from authorized retailers to ensure warranty coverage and genuine products.