Vextron US8X 8 Inch Active Underseat Subwoofer

Product Overview

The Vextron US8X is an ultra-compact active 8-inch underseat subwoofer system engineered to bring deep, punchy low-frequency performance to your vehicle without sacrificing cargo or trunk space. Built with an ultra-slim profile designed to slide beneath front driver or passenger seats, the US8X offers an all-in-one bass solution for hatchbacks, sedans, SUVs, and compact cars.

Heavy-Duty Die-Cast Aluminum Body Structure

Unlike plastic enclosures that flex and distort under high acoustic load, the US8X is housed in a rigid die-cast aluminum alloy chassis. The heavy-duty metal housing dampens unwanted panel vibrations and internal standing waves, resulting in tight, clean, and distortion-free low-end reproduction while acting as an effective heat sink for the internal amplifier.

Integrated Active Amplifier & Acoustic Tuning

Equipped with a built-in high-efficiency active power amplifier, the Vextron US8X delivers continuous, dynamic power directly tuned to the 8-inch driver. The single-side control panel includes customizable sound adjustments:

• Variable Gain Control: Match output sensitivity to your head unit.

• Low-Pass Filter (LPF): Route only low-frequency bass signals to the woofer.

• Phase Selector Switch: Align bass phase ($0^\circ / 180^\circ$) with your cabin speakers.

Universal Integration & Remote Bass Control

Designed for simple plug-and-play installation, the US8X features both High-Level (speaker wire) and Low-Level (RCA) inputs, allowing seamless setup with original factory stereos or aftermarket touchscreen receivers. Additionally, it comes with a wired remote bass knob, letting you fine-tune subwoofer levels on the fly directly from the driver seat.

Product Features

• Vextron Us8 Underseat Subwoofer
• Power Handling 200w
• Power Peak 1800w
• Sensitivity 92db
• Frequency Response 50hz _150hz
• L X W X H 415mm X 330mm X 125mm

1 Year Brand Warranty

Frequently Asked Questions (FAQ)

Q: Will the Vextron US8X fit under my vehicle’s seat?

A: Yes. The Vextron US8X is engineered with a shallow-depth aluminum profile designed specifically to slide under driver or passenger seats across most hatchbacks, sedans, compact crossovers, and SUVs.

Q: Do I need to buy a separate amplifier to run the Vextron US8X?

A: No. The US8X is an active (powered) subwoofer with a dedicated internal power amplifier built inside the aluminum housing.

Q: Can I connect this subwoofer to my original factory car radio?

A: Yes! The US8X includes high-level (speaker line) inputs, allowing it to tap directly into your vehicle’s factory speaker wiring without needing an external Line Output Converter (LOC).